Extracting prog: 5m7.880081291s Minimizing prog: 1h35m39.881962182s Simplifying prog options: 12m13.849556215s Extracting C: 5m7.813825554s Simplifying C: 0s extracting reproducer from 1 programs testing a last program of every proc single: executing 1 programs separately with timeout 30s testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit-mkdirat$cgroup_root-socket$nl_netfilter detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) socket$nl_netfilter(0x10, 0x3, 0xc) program did not crash single: failed to extract reproducer single: executing 1 programs separately with timeout 6m0s testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit-mkdirat$cgroup_root-socket$nl_netfilter detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) socket$nl_netfilter(0x10, 0x3, 0xc) program crashed: WARNING in print_bfs_bug single: successfully extracted reproducer found reproducer with 15 syscalls minimizing guilty program testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit-mkdirat$cgroup_root detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) mkdirat$cgroup_root(0xffffffffffffff9c, 0x0, 0x1ff) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill-setrlimit detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) setrlimit(0x0, 0x0) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-fsconfig$FSCONFIG_CMD_CREATE detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-gettid-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) r2 = gettid() tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-bpf$BPF_MAP_GET_FD_BY_ID-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) bpf$BPF_MAP_GET_FD_BY_ID(0xe, 0x0, 0x0) fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(0x0, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-bpf$BPF_GET_MAP_INFO-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) bpf$BPF_GET_MAP_INFO(0xf, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-bpf$MAP_CREATE-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) bpf$MAP_CREATE(0x0, 0x0, 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsopen-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-listen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) listen(r0, 0x0) fsconfig$FSCONFIG_SET_STRING(0xffffffffffffffff, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(0xffffffffffffffff, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-bind$inet6-fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) bind$inet6(r0, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-setsockopt$sock_int-fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = socket$inet6_tcp(0xa, 0x1, 0x0) setsockopt$sock_int(r0, 0x1, 0xf, 0x0, 0x0) r1 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r1, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r2 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r1, 0x6, 0x0, 0x0, 0x0) tkill(r2, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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$inet6_tcp-fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: socket$inet6_tcp(0xa, 0x1, 0x0) r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program crashed: WARNING in print_bfs_bug testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(0x0, 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, 0x0, &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', 0x0, 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash extracting C reproducer testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill program crashed: no output from test machine a never seen crash title: no output from test machine, ignore simplifying guilty program options testing program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program did not crash testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program crashed: WARNING in print_bfs_bug validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program crashed: WARNING in print_bfs_bug validation run: crashed=true testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 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}}): fsopen-fsconfig$FSCONFIG_SET_STRING-gettid-fsconfig$FSCONFIG_CMD_CREATE-tkill detailed listing: executing program 0: r0 = fsopen(&(0x7f0000000280)='ceph\x00', 0x0) fsconfig$FSCONFIG_SET_STRING(r0, 0x1, &(0x7f0000000b40)='source', &(0x7f0000000040)='c:::\x00', 0x0) r1 = gettid() fsconfig$FSCONFIG_CMD_CREATE(r0, 0x6, 0x0, 0x0, 0x0) tkill(r1, 0xb) program crashed: WARNING in print_bfs_bug validation run: crashed=true reproducing took 2h11m56.213892352s repro crashed as (corrupted=false): Increase LOCKDEP_CIRCULAR_QUEUE_BITS to avoid this warning: ------------[ cut here ]------------ lockdep bfs error:-1 WARNING: kernel/locking/lockdep.c:2103 at print_bfs_bug+0x7f/0xf0 kernel/locking/lockdep.c:2103, CPU#3: kworker/u32:0/12 Modules linked in: CPU: 3 UID: 0 PID: 12 Comm: kworker/u32:0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:print_bfs_bug+0x81/0xf0 kernel/locking/lockdep.c:2103 Code: 09 48 c7 c7 68 5a 48 8e e8 ec 82 eb 09 65 ff 0d 0d 4f a6 12 85 ed 74 17 83 fb ff 0f 84 c0 f2 3a ff 48 8d 3d b1 96 61 0f 89 de <67> 48 0f b9 3a 5b 5d c3 cc cc cc cc 90 e8 4d dd 40 03 85 c0 74 1d RSP: 0018:ffffc900000f6fb8 EFLAGS: 00010086 RAX: 000000000000003b RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 000000000000003b RSI: 00000000ffffffff RDI: ffffffff91489e90 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 8000000000000002 R11: 0000000000000000 R12: ffffc900000f7030 R13: ffff88801eeb57c8 R14: ffffc900000f7070 R15: ffff88801eeb57a0 FS: 0000000000000000(0000) GS:ffff8880d5e4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe8fc42e9c CR3: 0000000035f50000 CR4: 0000000000352ef0 Call Trace: check_irq_usage+0x32b/0x8b0 kernel/locking/lockdep.c:2860 check_prev_add+0xfe/0xe60 kernel/locking/lockdep.c:3213 check_prevs_add kernel/locking/lockdep.c:3328 [inline] validate_chain kernel/locking/lockdep.c:3952 [inline] __lock_acquire+0x1528/0x1f40 kernel/locking/lockdep.c:5288 lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __raw_spin_lock include/linux/spinlock_api_smp.h:190 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:173 class_raw_spinlock_constructor include/linux/spinlock.h:558 [inline] pcpu_alloc+0x1d4/0x350 lib/debugobjects.c:281 alloc_object lib/debugobjects.c:475 [inline] lookup_object_or_alloc.part.0+0xc7/0x4f0 lib/debugobjects.c:702 lookup_object_or_alloc lib/debugobjects.c:682 [inline] debug_object_activate+0x2fd/0x4b0 lib/debugobjects.c:875 debug_rcu_head_queue kernel/rcu/rcu.h:245 [inline] __call_rcu_common.constprop.0+0x35/0x9b0 kernel/rcu/tree.c:3166 security_inode_free+0xa4/0x170 security/security.c:1253 __destroy_inode+0x1ea/0x710 fs/inode.c:362 destroy_inode+0x91/0x1c0 fs/inode.c:385 evict+0x599/0xad0 fs/inode.c:846 iput_final fs/inode.c:2014 [inline] iput.part.0+0x989/0x1050 fs/inode.c:2063 iput+0x35/0x40 fs/inode.c:2029 dentry_unlink_inode+0x284/0x470 fs/dcache.c:479 dentry_kill+0x25d/0xc20 fs/dcache.c:826 finish_dput fs/dcache.c:1001 [inline] dput.part.0+0xd7/0x240 fs/dcache.c:1042 dput+0x1f/0x30 fs/dcache.c:1037 find_next_child+0x18f/0x280 fs/libfs.c:592 __simple_recursive_removal+0x2ab/0x5c0 fs/libfs.c:609 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:784 nsim_destroy+0xd5/0x970 drivers/net/netdevsim/netdev.c:1184 __nsim_dev_port_del+0x194/0x2b0 drivers/net/netdevsim/dev.c:1472 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1486 [inline] nsim_dev_reload_destroy+0x10a/0x490 drivers/net/netdevsim/dev.c:1710 nsim_dev_reload_down+0x66/0xd0 drivers/net/netdevsim/dev.c:963 devlink_reload+0x1ae/0x7a0 net/devlink/dev.c:462 devlink_pernet_pre_exit+0x247/0x370 net/devlink/core.c:578 ops_pre_exit_list net/core/net_namespace.c:161 [inline] ops_undo_list+0x187/0xab0 net/core/net_namespace.c:235 cleanup_net+0x499/0x920 net/core/net_namespace.c:706 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396 process_scheduled_works kernel/workqueue.c:3479 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 c7 c7 68 5a 48 8e mov $0xffffffff8e485a68,%rdi 7: e8 ec 82 eb 09 call 0x9eb82f8 c: 65 ff 0d 0d 4f a6 12 decl %gs:0x12a64f0d(%rip) # 0x12a64f20 13: 85 ed test %ebp,%ebp 15: 74 17 je 0x2e 17: 83 fb ff cmp $0xffffffff,%ebx 1a: 0f 84 c0 f2 3a ff je 0xff3af2e0 20: 48 8d 3d b1 96 61 0f lea 0xf6196b1(%rip),%rdi # 0xf6196d8 27: 89 de mov %ebx,%esi * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: 5b pop %rbx 2f: 5d pop %rbp 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 90 nop 36: e8 4d dd 40 03 call 0x340dd88 3b: 85 c0 test %eax,%eax 3d: 74 1d je 0x5c final repro crashed as (corrupted=false): Increase LOCKDEP_CIRCULAR_QUEUE_BITS to avoid this warning: ------------[ cut here ]------------ lockdep bfs error:-1 WARNING: kernel/locking/lockdep.c:2103 at print_bfs_bug+0x7f/0xf0 kernel/locking/lockdep.c:2103, CPU#3: kworker/u32:0/12 Modules linked in: CPU: 3 UID: 0 PID: 12 Comm: kworker/u32:0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 Workqueue: netns cleanup_net RIP: 0010:print_bfs_bug+0x81/0xf0 kernel/locking/lockdep.c:2103 Code: 09 48 c7 c7 68 5a 48 8e e8 ec 82 eb 09 65 ff 0d 0d 4f a6 12 85 ed 74 17 83 fb ff 0f 84 c0 f2 3a ff 48 8d 3d b1 96 61 0f 89 de <67> 48 0f b9 3a 5b 5d c3 cc cc cc cc 90 e8 4d dd 40 03 85 c0 74 1d RSP: 0018:ffffc900000f6fb8 EFLAGS: 00010086 RAX: 000000000000003b RBX: 00000000ffffffff RCX: 0000000000000000 RDX: 000000000000003b RSI: 00000000ffffffff RDI: ffffffff91489e90 RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000 R10: 8000000000000002 R11: 0000000000000000 R12: ffffc900000f7030 R13: ffff88801eeb57c8 R14: ffffc900000f7070 R15: ffff88801eeb57a0 FS: 0000000000000000(0000) GS:ffff8880d5e4f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fbe8fc42e9c CR3: 0000000035f50000 CR4: 0000000000352ef0 Call Trace: check_irq_usage+0x32b/0x8b0 kernel/locking/lockdep.c:2860 check_prev_add+0xfe/0xe60 kernel/locking/lockdep.c:3213 check_prevs_add kernel/locking/lockdep.c:3328 [inline] validate_chain kernel/locking/lockdep.c:3952 [inline] __lock_acquire+0x1528/0x1f40 kernel/locking/lockdep.c:5288 lock_acquire kernel/locking/lockdep.c:5942 [inline] lock_acquire+0x1d1/0x380 kernel/locking/lockdep.c:5899 __raw_spin_lock include/linux/spinlock_api_smp.h:190 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:173 class_raw_spinlock_constructor include/linux/spinlock.h:558 [inline] pcpu_alloc+0x1d4/0x350 lib/debugobjects.c:281 alloc_object lib/debugobjects.c:475 [inline] lookup_object_or_alloc.part.0+0xc7/0x4f0 lib/debugobjects.c:702 lookup_object_or_alloc lib/debugobjects.c:682 [inline] debug_object_activate+0x2fd/0x4b0 lib/debugobjects.c:875 debug_rcu_head_queue kernel/rcu/rcu.h:245 [inline] __call_rcu_common.constprop.0+0x35/0x9b0 kernel/rcu/tree.c:3166 security_inode_free+0xa4/0x170 security/security.c:1253 __destroy_inode+0x1ea/0x710 fs/inode.c:362 destroy_inode+0x91/0x1c0 fs/inode.c:385 evict+0x599/0xad0 fs/inode.c:846 iput_final fs/inode.c:2014 [inline] iput.part.0+0x989/0x1050 fs/inode.c:2063 iput+0x35/0x40 fs/inode.c:2029 dentry_unlink_inode+0x284/0x470 fs/dcache.c:479 dentry_kill+0x25d/0xc20 fs/dcache.c:826 finish_dput fs/dcache.c:1001 [inline] dput.part.0+0xd7/0x240 fs/dcache.c:1042 dput+0x1f/0x30 fs/dcache.c:1037 find_next_child+0x18f/0x280 fs/libfs.c:592 __simple_recursive_removal+0x2ab/0x5c0 fs/libfs.c:609 debugfs_remove+0x5d/0x80 fs/debugfs/inode.c:784 nsim_destroy+0xd5/0x970 drivers/net/netdevsim/netdev.c:1184 __nsim_dev_port_del+0x194/0x2b0 drivers/net/netdevsim/dev.c:1472 nsim_dev_port_del_all drivers/net/netdevsim/dev.c:1486 [inline] nsim_dev_reload_destroy+0x10a/0x490 drivers/net/netdevsim/dev.c:1710 nsim_dev_reload_down+0x66/0xd0 drivers/net/netdevsim/dev.c:963 devlink_reload+0x1ae/0x7a0 net/devlink/dev.c:462 devlink_pernet_pre_exit+0x247/0x370 net/devlink/core.c:578 ops_pre_exit_list net/core/net_namespace.c:161 [inline] ops_undo_list+0x187/0xab0 net/core/net_namespace.c:235 cleanup_net+0x499/0x920 net/core/net_namespace.c:706 process_one_work+0xac7/0x1b10 kernel/workqueue.c:3396 process_scheduled_works kernel/workqueue.c:3479 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3560 kthread+0x373/0x450 kernel/kthread.c:436 ret_from_fork+0x730/0xd60 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 48 c7 c7 68 5a 48 8e mov $0xffffffff8e485a68,%rdi 7: e8 ec 82 eb 09 call 0x9eb82f8 c: 65 ff 0d 0d 4f a6 12 decl %gs:0x12a64f0d(%rip) # 0x12a64f20 13: 85 ed test %ebp,%ebp 15: 74 17 je 0x2e 17: 83 fb ff cmp $0xffffffff,%ebx 1a: 0f 84 c0 f2 3a ff je 0xff3af2e0 20: 48 8d 3d b1 96 61 0f lea 0xf6196b1(%rip),%rdi # 0xf6196d8 27: 89 de mov %ebx,%esi * 29: 67 48 0f b9 3a ud1 (%edx),%rdi <-- trapping instruction 2e: 5b pop %rbx 2f: 5d pop %rbp 30: c3 ret 31: cc int3 32: cc int3 33: cc int3 34: cc int3 35: 90 nop 36: e8 4d dd 40 03 call 0x340dd88 3b: 85 c0 test %eax,%eax 3d: 74 1d je 0x5c