Extracting prog: 7m47.02994664s Minimizing prog: 1h18m33.931000118s Simplifying prog options: 5m28.05252055s Extracting C: 1m1.645282013s Simplifying C: 0s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash program crashed: BUG: workqueue lockup single: successfully extracted reproducer found reproducer with 6 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) socket(0x400000000010, 0x3, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) socket(0x10, 0x3, 0x0) r2 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r2 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: socket$unix(0x1, 0x5, 0x0) r0 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r0, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, 0x0, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r1 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, 0x0, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r1 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r0, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r2 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r0, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, 0x0) r1 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r1, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, 0x0, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r2 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, 0x0, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, 0x0, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, 0x0}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={0x0}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, 0x0, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={0x0}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched program crashed: BUG: soft lockup in corrupted a never seen crash title: BUG: soft lockup in corrupted, ignore simplifying guilty program options testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program crashed: WARNING in drm_crtc_wait_one_vblank a never seen crash title: WARNING in drm_crtc_wait_one_vblank, ignore testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program crashed: WARNING in drm_crtc_wait_one_vblank a never seen crash title: WARNING in drm_crtc_wait_one_vblank, ignore testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program crashed: BUG: soft lockup in corrupted validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program crashed: WARNING in drm_crtc_wait_one_vblank validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program did not crash validation run: crashed=false testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$unix-ioctl$sock_SIOCGIFINDEX-socket-sendmsg$nl_route_sched-socket-sendmsg$nl_route_sched detailed listing: executing program 0: r0 = socket$unix(0x1, 0x5, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_macvtap\x00', 0x0}) r2 = socket(0x10, 0x3, 0x0) sendmsg$nl_route_sched(r2, &(0x7f0000000200)={0x0, 0x0, &(0x7f0000000000)={&(0x7f0000000300)=@newqdisc={0x88, 0x24, 0xf0b, 0x70bd26, 0x0, {0x0, 0x0, 0x0, r1, {0x0, 0xffff}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_mqprio={{0xb}, {0x58, 0x2, {{0x1, [], 0x0, [0x1, 0x2, 0xfffe, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x5c4, 0x8000, 0x0, 0x0, 0x3dc], [0x0, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000]}}}}]}, 0x88}}, 0x20000000) r3 = socket(0x400000000010, 0x3, 0x0) sendmsg$nl_route_sched(r3, &(0x7f00000012c0)={0x0, 0x0, &(0x7f0000000080)={&(0x7f00000003c0)=@newqdisc={0x4c, 0x24, 0x4ee4e6a52ff56541, 0x70bd29, 0xfffbffff, {0x0, 0x0, 0x0, r1, {0x0, 0x8}, {0xffff, 0xffff}, {0xc, 0xfff3}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x1c, 0x2, [@TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0xff}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0x4c}, 0x1, 0x0, 0x0, 0x40001}, 0x10) program crashed: WARNING in drm_crtc_wait_one_vblank validation run: crashed=true reproducing took 1h47m28.892948096s repro crashed as (corrupted=false): ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1154658 hardirqs last enabled at (1154657): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1154657): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1154658): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1154616): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (1154616): [] ptr_ring_consume_bh include/linux/ptr_ring.h:377 [inline] softirqs last enabled at (1154616): [] wg_packet_handshake_receive_worker+0xc20/0xca8 drivers/net/wireguard/receive.c:212 softirqs last disabled at (1154614): [] spin_lock_bh include/linux/spinlock.h:348 [inline] softirqs last disabled at (1154614): [] ptr_ring_consume_bh include/linux/ptr_ring.h:375 [inline] softirqs last disabled at (1154614): [] wg_packet_handshake_receive_worker+0x628/0xca8 drivers/net/wireguard/receive.c:212 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1154864 hardirqs last enabled at (1154863): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1154863): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1154864): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1154812): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1154812): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154661): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1154920 hardirqs last enabled at (1154919): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1154919): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1154920): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1154812): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1154812): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154661): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155132 hardirqs last enabled at (1155131): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155131): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155132): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155080): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155080): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154923): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155188 hardirqs last enabled at (1155187): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155187): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155188): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155080): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155080): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154923): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155402 hardirqs last enabled at (1155401): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155401): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155402): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155350): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155350): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155191): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155458 hardirqs last enabled at (1155457): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155457): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155458): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155350): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155350): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155191): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155514 hardirqs last enabled at (1155513): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155513): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155514): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155350): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155350): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155191): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155720 hardirqs last enabled at (1155719): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155719): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155720): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155668): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155668): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155517): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155776 hardirqs last enabled at (1155775): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155775): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155776): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155668): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155668): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155517): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- final repro crashed as (corrupted=false): ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1154658 hardirqs last enabled at (1154657): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1154657): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1154658): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1154616): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (1154616): [] ptr_ring_consume_bh include/linux/ptr_ring.h:377 [inline] softirqs last enabled at (1154616): [] wg_packet_handshake_receive_worker+0xc20/0xca8 drivers/net/wireguard/receive.c:212 softirqs last disabled at (1154614): [] spin_lock_bh include/linux/spinlock.h:348 [inline] softirqs last disabled at (1154614): [] ptr_ring_consume_bh include/linux/ptr_ring.h:375 [inline] softirqs last disabled at (1154614): [] wg_packet_handshake_receive_worker+0x628/0xca8 drivers/net/wireguard/receive.c:212 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1154864 hardirqs last enabled at (1154863): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1154863): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1154864): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1154812): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1154812): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154661): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1154920 hardirqs last enabled at (1154919): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1154919): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1154920): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1154812): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1154812): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154661): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155132 hardirqs last enabled at (1155131): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155131): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155132): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155080): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155080): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154923): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155188 hardirqs last enabled at (1155187): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155187): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155188): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155080): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155080): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1154923): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155402 hardirqs last enabled at (1155401): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155401): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155402): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155350): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155350): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155191): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155458 hardirqs last enabled at (1155457): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155457): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155458): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155350): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155350): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155191): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155514 hardirqs last enabled at (1155513): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155513): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155514): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155350): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155350): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155191): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155720 hardirqs last enabled at (1155719): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155719): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155720): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155668): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155668): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155517): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ faux_driver vkms: [drm] vblank wait timed out on crtc 0 WARNING: drivers/gpu/drm/drm_vblank.c:1320 at drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322, CPU#0: kworker/0:0/4813 Modules linked in: CPU: 0 UID: 0 PID: 4813 Comm: kworker/0:0 Tainted: G W syzkaller #0 PREEMPT Tainted: [W]=WARN Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/18/2026 Workqueue: events drm_fb_helper_damage_work pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 lr : drm_crtc_wait_one_vblank+0x404/0x43c drivers/gpu/drm/drm_vblank.c:1320 sp : ffff8000955c7880 x29: ffff8000955c7930 x28: dfff800000000000 x27: ffff0000c7221080 x26: ffff8000955c7880 x25: dfff800000000000 x24: ffff700012ab8f10 x23: ffff800086d5fd20 x22: ffff0000c7214000 x21: ffff800086de0f40 x20: ffff0000c7414000 x19: 0000000000000000 x18: 1fffe00035c20e20 x17: ffff8000888db000 x16: ffff80008898cfc0 x15: ffff0001ae10710c x14: ffff0001ae107108 x13: 0000000000000001 x12: 0000000000000000 x11: ffff80008a343d08 x10: 0000000000000003 x9 : e43e638e87905b00 x8 : e43e638e87905b00 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000008 x3 : ffff800080153db0 x2 : 0000000000000006 x1 : 0000000000000000 x0 : ffff0000c7414000 Call trace: drm_crtc_wait_one_vblank+0x40c/0x43c drivers/gpu/drm/drm_vblank.c:1322 (P) drm_client_modeset_wait_for_vblank+0xc4/0xec drivers/gpu/drm/drm_client_modeset.c:1331 drm_fb_helper_fb_dirty drivers/gpu/drm/drm_fb_helper.c:237 [inline] drm_fb_helper_damage_work+0x100/0x5d0 drivers/gpu/drm/drm_fb_helper.c:275 process_one_work+0x78c/0x173c kernel/workqueue.c:3302 process_scheduled_works+0xdc/0x13c kernel/workqueue.c:3385 worker_thread+0x770/0xbd0 kernel/workqueue.c:3466 kthread+0x2f0/0x3c0 kernel/kthread.c:436 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:842 irq event stamp: 1155776 hardirqs last enabled at (1155775): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1644 [inline] hardirqs last enabled at (1155775): [] finish_lock_switch+0x160/0x204 kernel/sched/core.c:5124 hardirqs last disabled at (1155776): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:412 softirqs last enabled at (1155668): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (1155668): [] handle_softirqs+0xbc4/0xd34 kernel/softirq.c:650 softirqs last disabled at (1155517): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]---