Extracting prog: 6m3.074314405s Minimizing prog: 55m16.997036661s Simplifying prog options: 0s Extracting C: 3m4.473696544s Simplifying C: 40m13.823940765s 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: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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program crashed: INFO: task hung in jbd2_journal_commit_transaction program crashed: INFO: task hung in do_get_write_access single: successfully extracted reproducer found reproducer with 4 syscalls minimizing guilty program testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) pwrite64(0xffffffffffffffff, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-pwrite64 detailed listing: executing program 0: mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, 0x0, 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, 0x0, &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', 0x0, 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, 0x0, 0x0, 0x2) program did not crash testing program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680), 0x0, 0x2) program did not crash extracting C reproducer testing compiled C program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access simplifying C reproducer testing compiled C program (duration=5m28.62637801s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false 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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in jbd2_journal_commit_transaction a never seen crash title: INFO: task hung in jbd2_journal_commit_transaction, ignore testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in jbd2_journal_commit_transaction a never seen crash title: INFO: task hung in jbd2_journal_commit_transaction, ignore testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing compiled C program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 program crashed: INFO: task hung in do_get_write_access testing program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program crashed: INFO: task hung in do_get_write_access validation run: crashed=true testing program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program crashed: INFO: task hung in jbd2_journal_commit_transaction validation run: crashed=true testing program (duration=5m28.62637801s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-pwrite64 detailed listing: executing program 0: mkdirat(0xffffffffffffff9c, &(0x7f0000000580)='./sys\x00', 0x1ff) mount(0x0, &(0x7f00000005c0)='./sys\x00', &(0x7f0000000600)='sysfs\x00', 0x0, 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000000640)='./sys/bus/pci/devices/0000:00:03.0/config\x00', 0x2, 0x0) pwrite64(r0, &(0x7f0000000680)="02155e65", 0x4, 0x2) program crashed: INFO: task hung in jbd2_journal_commit_transaction validation run: crashed=true reproducing took 1h52m55.513125659s repro crashed as (corrupted=false): INFO: task jbd2/sda1-8:73 blocked for more than 122 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:0 pid:73 tgid:73 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:6071 [inline] __schedule+0x16fe/0x23d0 kernel/sched/core.c:7891 __schedule_loop kernel/sched/core.c:7966 [inline] schedule+0xc1/0x170 kernel/sched/core.c:7981 io_schedule+0x85/0x150 kernel/sched/core.c:8796 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x5a/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:422 [inline] jbd2_journal_commit_transaction+0x2dba/0x5510 fs/jbd2/commit.c:814 kjournald2+0x386/0x6a0 fs/jbd2/journal.c:201 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/u8:4:381 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:4 state:D stack:0 pid:381 tgid:381 ppid:2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:6071 [inline] __schedule+0x16fe/0x23d0 kernel/sched/core.c:7891 __schedule_loop kernel/sched/core.c:7966 [inline] schedule+0xc1/0x170 kernel/sched/core.c:7981 io_schedule+0x85/0x150 kernel/sched/core.c:8796 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_mb_mark_context+0x393/0xee0 fs/ext4/mballoc.c:4107 ext4_mb_mark_diskspace_used+0x3aa/0x830 fs/ext4/mballoc.c:4223 ext4_mb_new_blocks+0x840/0x36c0 fs/ext4/mballoc.c:6318 ext4_ext_map_blocks+0x14d9/0x6080 fs/ext4/extents.c:4437 ext4_map_create_blocks fs/ext4/inode.c:520 [inline] ext4_map_blocks+0x873/0x17f0 fs/ext4/inode.c:706 mpage_map_one_extent fs/ext4/inode.c:2229 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2282 [inline] ext4_do_writepages+0x1c4a/0x39f0 fs/ext4/inode.c:2745 ext4_writepages+0x28c/0x550 fs/ext4/inode.c:2834 do_writepages+0x3d4/0x7f0 mm/page-writeback.c:2690 __writeback_single_inode+0xc8/0xba0 fs/fs-writeback.c:1701 writeback_sb_inodes+0x6a5/0xfb0 fs/fs-writeback.c:1997 __writeback_inodes_wb+0x129/0x280 fs/fs-writeback.c:2068 wb_writeback+0x3bb/0x850 fs/fs-writeback.c:2179 wb_check_old_data_flush fs/fs-writeback.c:2283 [inline] wb_do_writeback fs/fs-writeback.c:2336 [inline] wb_workfn+0xa03/0xef0 fs/fs-writeback.c:2364 process_one_work kernel/workqueue.c:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.2.208:573 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.208 state:D stack:0 pid:573 tgid:573 ppid:377 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:6071 [inline] __schedule+0x16fe/0x23d0 kernel/sched/core.c:7891 __schedule_loop kernel/sched/core.c:7966 [inline] schedule+0xc1/0x170 kernel/sched/core.c:7981 io_schedule+0x85/0x150 kernel/sched/core.c:8796 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_reserve_inode_write+0x1f6/0x2e0 fs/ext4/inode.c:5899 __ext4_mark_inode_dirty+0xac/0x5e0 fs/ext4/inode.c:6073 ext4_dirty_inode+0xc9/0x110 fs/ext4/inode.c:6110 __mark_inode_dirty+0x24e/0xc50 fs/fs-writeback.c:2542 generic_update_time fs/inode.c:2056 [inline] inode_update_time fs/inode.c:2069 [inline] __file_update_time fs/inode.c:2258 [inline] file_update_time+0x1d3/0x210 fs/inode.c:2288 ext4_page_mkwrite+0x2bf/0x1120 fs/ext4/inode.c:6228 do_page_mkwrite mm/memory.c:3263 [inline] do_shared_fault mm/memory.c:5537 [inline] do_fault mm/memory.c:5599 [inline] do_pte_missing+0x12c4/0x4440 mm/memory.c:4069 handle_pte_fault mm/memory.c:5940 [inline] __handle_mm_fault mm/memory.c:6083 [inline] handle_mm_fault+0x1189/0x1ba0 mm/memory.c:6251 do_user_addr_fault+0x951/0x1230 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1479 [inline] exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f7dd006cea3 RSP: 002b:00007ffc5feb2f40 EFLAGS: 00010246 RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b34424000 RSI: 0000000000040000 RDI: 00007f7dd03e7708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffc5feb31d0 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 1736d3b6ee88961c9d73e511fbf4428dbce80e3d Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120 dump_stack+0x19/0x20 lib/dump_stack.c:129 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:114 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:63 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41 cpumask_backtrace+0x1f/0x30 lib/nmi_backtrace.c:127 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline] watchdog+0xe45/0xf90 kernel/hung_task.c:423 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x5b/0x80 kernel/sched/idle.c:126 final repro crashed as (corrupted=false): INFO: task jbd2/sda1-8:73 blocked for more than 122 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:jbd2/sda1-8 state:D stack:0 pid:73 tgid:73 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:6071 [inline] __schedule+0x16fe/0x23d0 kernel/sched/core.c:7891 __schedule_loop kernel/sched/core.c:7966 [inline] schedule+0xc1/0x170 kernel/sched/core.c:7981 io_schedule+0x85/0x150 kernel/sched/core.c:8796 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] __wait_on_buffer+0x5a/0x70 fs/buffer.c:123 wait_on_buffer include/linux/buffer_head.h:422 [inline] jbd2_journal_commit_transaction+0x2dba/0x5510 fs/jbd2/commit.c:814 kjournald2+0x386/0x6a0 fs/jbd2/journal.c:201 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task kworker/u8:4:381 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:kworker/u8:4 state:D stack:0 pid:381 tgid:381 ppid:2 flags:0x00004000 Workqueue: writeback wb_workfn (flush-8:0) Call Trace: context_switch kernel/sched/core.c:6071 [inline] __schedule+0x16fe/0x23d0 kernel/sched/core.c:7891 __schedule_loop kernel/sched/core.c:7966 [inline] schedule+0xc1/0x170 kernel/sched/core.c:7981 io_schedule+0x85/0x150 kernel/sched/core.c:8796 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_mb_mark_context+0x393/0xee0 fs/ext4/mballoc.c:4107 ext4_mb_mark_diskspace_used+0x3aa/0x830 fs/ext4/mballoc.c:4223 ext4_mb_new_blocks+0x840/0x36c0 fs/ext4/mballoc.c:6318 ext4_ext_map_blocks+0x14d9/0x6080 fs/ext4/extents.c:4437 ext4_map_create_blocks fs/ext4/inode.c:520 [inline] ext4_map_blocks+0x873/0x17f0 fs/ext4/inode.c:706 mpage_map_one_extent fs/ext4/inode.c:2229 [inline] mpage_map_and_submit_extent fs/ext4/inode.c:2282 [inline] ext4_do_writepages+0x1c4a/0x39f0 fs/ext4/inode.c:2745 ext4_writepages+0x28c/0x550 fs/ext4/inode.c:2834 do_writepages+0x3d4/0x7f0 mm/page-writeback.c:2690 __writeback_single_inode+0xc8/0xba0 fs/fs-writeback.c:1701 writeback_sb_inodes+0x6a5/0xfb0 fs/fs-writeback.c:1997 __writeback_inodes_wb+0x129/0x280 fs/fs-writeback.c:2068 wb_writeback+0x3bb/0x850 fs/fs-writeback.c:2179 wb_check_old_data_flush fs/fs-writeback.c:2283 [inline] wb_do_writeback fs/fs-writeback.c:2336 [inline] wb_workfn+0xa03/0xef0 fs/fs-writeback.c:2364 process_one_work kernel/workqueue.c:3273 [inline] process_scheduled_works+0x7f7/0x1060 kernel/workqueue.c:3354 worker_thread+0xc99/0x13f0 kernel/workqueue.c:3435 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 INFO: task syz.2.208:573 blocked for more than 123 seconds. Not tainted syzkaller #0 "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. task:syz.2.208 state:D stack:0 pid:573 tgid:573 ppid:377 flags:0x00000004 Call Trace: context_switch kernel/sched/core.c:6071 [inline] __schedule+0x16fe/0x23d0 kernel/sched/core.c:7891 __schedule_loop kernel/sched/core.c:7966 [inline] schedule+0xc1/0x170 kernel/sched/core.c:7981 io_schedule+0x85/0x150 kernel/sched/core.c:8796 bit_wait_io+0x17/0xd0 kernel/sched/wait_bit.c:209 __wait_on_bit+0xb3/0x2e0 kernel/sched/wait_bit.c:49 out_of_line_wait_on_bit+0x139/0x190 kernel/sched/wait_bit.c:64 wait_on_bit_io include/linux/wait_bit.h:101 [inline] do_get_write_access+0x558/0xd70 fs/jbd2/transaction.c:1096 jbd2_journal_get_write_access+0x268/0x3d0 fs/jbd2/transaction.c:1245 __ext4_journal_get_write_access+0x1b6/0x6a0 fs/ext4/ext4_jbd2.c:239 ext4_reserve_inode_write+0x1f6/0x2e0 fs/ext4/inode.c:5899 __ext4_mark_inode_dirty+0xac/0x5e0 fs/ext4/inode.c:6073 ext4_dirty_inode+0xc9/0x110 fs/ext4/inode.c:6110 __mark_inode_dirty+0x24e/0xc50 fs/fs-writeback.c:2542 generic_update_time fs/inode.c:2056 [inline] inode_update_time fs/inode.c:2069 [inline] __file_update_time fs/inode.c:2258 [inline] file_update_time+0x1d3/0x210 fs/inode.c:2288 ext4_page_mkwrite+0x2bf/0x1120 fs/ext4/inode.c:6228 do_page_mkwrite mm/memory.c:3263 [inline] do_shared_fault mm/memory.c:5537 [inline] do_fault mm/memory.c:5599 [inline] do_pte_missing+0x12c4/0x4440 mm/memory.c:4069 handle_pte_fault mm/memory.c:5940 [inline] __handle_mm_fault mm/memory.c:6083 [inline] handle_mm_fault+0x1189/0x1ba0 mm/memory.c:6251 do_user_addr_fault+0x951/0x1230 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1479 [inline] exc_page_fault+0x58/0xc0 arch/x86/mm/fault.c:1534 asm_exc_page_fault+0x2b/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7f7dd006cea3 RSP: 002b:00007ffc5feb2f40 EFLAGS: 00010246 RAX: 000000000003fde8 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000001b34424000 RSI: 0000000000040000 RDI: 00007f7dd03e7708 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 00007ffc5feb31d0 NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 37 Comm: khungtaskd Not tainted syzkaller #0 1736d3b6ee88961c9d73e511fbf4428dbce80e3d Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026 Call Trace: __dump_stack+0x21/0x30 lib/dump_stack.c:94 dump_stack_lvl+0x140/0x1c0 lib/dump_stack.c:120 dump_stack+0x19/0x20 lib/dump_stack.c:129 nmi_cpu_backtrace+0x2ba/0x2d0 lib/nmi_backtrace.c:114 nmi_trigger_cpumask_backtrace+0x142/0x2c0 lib/nmi_backtrace.c:63 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:41 cpumask_backtrace+0x1f/0x30 lib/nmi_backtrace.c:127 trigger_all_cpu_backtrace include/linux/nmi.h:160 [inline] check_hung_uninterruptible_tasks kernel/hung_task.c:267 [inline] watchdog+0xe45/0xf90 kernel/hung_task.c:423 kthread+0x2c7/0x360 kernel/kthread.c:389 ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 skipped: idling at default_idle_call+0x5b/0x80 kernel/sched/idle.c:126