Extracting prog: 7m24.098108945s
Minimizing prog: 57m57.559130245s
Simplifying prog options: 0s
Extracting C: 3m56.238128099s
Simplifying C: 52m22.917993558s


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: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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe-syz_mount_image$vfat-memfd_create
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)
syz_mount_image$vfat(&(0x7f0000000340), &(0x7f0000000280)='./file0\x00', 0x40415, &(0x7f0000000980)=ANY=[@ANYRES32, @ANYRES8], 0x1, 0x2a1, &(0x7f0000000f40)="$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")
memfd_create(0x0, 0x1)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 1m40s
testing program (duration=1m40s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe-syz_mount_image$vfat-memfd_create
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)
syz_mount_image$vfat(&(0x7f0000000340), &(0x7f0000000280)='./file0\x00', 0x40415, &(0x7f0000000980)=ANY=[@ANYRES32, @ANYRES8], 0x1, 0x2a1, &(0x7f0000000f40)="$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")
memfd_create(0x0, 0x1)

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: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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe-syz_mount_image$vfat-memfd_create
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)
syz_mount_image$vfat(&(0x7f0000000340), &(0x7f0000000280)='./file0\x00', 0x40415, &(0x7f0000000980)=ANY=[@ANYRES32, @ANYRES8], 0x1, 0x2a1, &(0x7f0000000f40)="$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")
memfd_create(0x0, 0x1)

program crashed: BUG: workqueue lockup
single: successfully extracted reproducer
found reproducer with 7 syscalls
minimizing guilty program
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe-syz_mount_image$vfat
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)
syz_mount_image$vfat(&(0x7f0000000340), &(0x7f0000000280)='./file0\x00', 0x40415, &(0x7f0000000980)=ANY=[@ANYRES32, @ANYRES8], 0x1, 0x2a1, &(0x7f0000000f40)="$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")

program crashed: BUG: workqueue lockup
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program crashed: BUG: workqueue lockup
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
pipe(0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program crashed: lost connection to test machine
suppressed program crash: lost connection to test machine
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program did not crash
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program did not crash
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program did not crash
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, 0x0, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program did not crash
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, 0x0)
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
pipe(0x0)

program did not crash
testing program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000140)={0xc, 0x8b}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, 0x0, 0x0)
pipe(0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
simplifying C reproducer
testing compiled C program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m13.212294438s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program did not crash
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program did not crash
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m13.212294438s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-pipe
program crashed: BUG: workqueue lockup
reproducing took 2h1m40.813376759s
repro crashed as (corrupted=false):
RBP: 00007fe63541b180 R08: 00007fe63534a6c0 R09: 00007fe63534a6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe6353e2348
R13: 0000000000000002 R14: 00007ffd0c4604f0 R15: 00007ffd0c4605d8
 </TASK>
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 263s!
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 258s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 263s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 263s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: regulator_init_complete_work_function
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: vmstat_shepherd, psi_avgs_work
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4
    pending: toggle_allocation_gate, flush_memcg_stats_dwork
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: neigh_periodic_work, reg_check_chans_work, check_lifetime
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: neigh_periodic_work, gc_worker
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    pending: wb_workfn
workqueue kblockd: flags=0x18
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2
    pending: blk_mq_timeout_work
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work

final repro crashed as (corrupted=false):
RBP: 00007fe63541b180 R08: 00007fe63534a6c0 R09: 00007fe63534a6c0
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fe6353e2348
R13: 0000000000000002 R14: 00007ffd0c4604f0 R15: 00007ffd0c4605d8
 </TASK>
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 263s!
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=-20 stuck for 258s!
BUG: workqueue lockup - pool cpus=1 node=0 flags=0x0 nice=0 stuck for 263s!
BUG: workqueue lockup - pool cpus=0-1 flags=0x4 nice=0 stuck for 263s!
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: regulator_init_complete_work_function
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: vmstat_shepherd, psi_avgs_work
workqueue events_unbound: flags=0x2
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=2/512 refcnt=4
    pending: toggle_allocation_gate, flush_memcg_stats_dwork
workqueue events_power_efficient: flags=0x80
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=3/256 refcnt=4
    pending: neigh_periodic_work, reg_check_chans_work, check_lifetime
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=2/256 refcnt=3
    pending: neigh_periodic_work, gc_worker
workqueue mm_percpu_wq: flags=0x8
  pwq 2: cpus=1 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: vmstat_update
workqueue writeback: flags=0x4a
  pwq 4: cpus=0-1 flags=0x4 nice=0 active=1/256 refcnt=3
    pending: wb_workfn
workqueue kblockd: flags=0x18
  pwq 1: cpus=0 node=0 flags=0x0 nice=-20 active=1/256 refcnt=2
    pending: blk_mq_timeout_work
workqueue dm_bufio_cache: flags=0x8
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
    pending: work_fn
workqueue ipv6_addrconf: flags=0x40008
  pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
    pending: addrconf_verify_work