Extracting prog: 3m3.41434162s
Minimizing prog: 47m32.894226234s
Simplifying prog options: 0s
Extracting C: 1m32.052815301s
Simplifying C: 20m33.597842747s
extracting reproducer from 30 programs
testing a last program of every proc
single: executing 5 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: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$alg-bind$alg
detailed listing:
executing program 0:
r0 = socket$alg(0x26, 0x5, 0x0)
bind$alg(r0, &(0x7f0000000100)={0x26, 'skcipher\x00', 0x0, 0x0, 'ecb(aes)\x00'}, 0x58)
program did not crash
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-openat-write-close-openat-write-close
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
close(r4)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./sys/bus/acpi/devices/ACPI0007:01/eject\x00', 0x1, 0x0)
write(r5, &(0x7f0000000440)='1\n', 0x2)
close(r5)
program crashed: possible deadlock in cpu_device_down
single: successfully extracted reproducer
found reproducer with 23 syscalls
minimizing guilty program
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-openat-write-close-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
close(r4)
r5 = openat(0xffffffffffffff9c, &(0x7f0000000a00)='./sys/bus/acpi/devices/ACPI0007:01/eject\x00', 0x1, 0x0)
write(r5, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-openat-write-close-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
close(r4)
openat(0xffffffffffffff9c, &(0x7f0000000a00)='./sys/bus/acpi/devices/ACPI0007:01/eject\x00', 0x1, 0x0)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-openat-write-close
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
close(r4)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-openat
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
program did not crash
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-close-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
close(r3)
write(0xffffffffffffffff, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
write(r3, &(0x7f0000000740)='cpu0\n', 0x5)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
write(r3, &(0x7f0000000700)='cpu1\n', 0x5)
r4 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r4, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
openat(0xffffffffffffff9c, &(0x7f0000000800)='./file0\x00', 0x1, 0x0)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r3, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-close-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
close(r2)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r3, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
write(r2, &(0x7f0000000740)='cpu0\n', 0x5)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r3, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
write(r2, &(0x7f0000000700)='cpu1\n', 0x5)
r3 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r3, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
openat(0xffffffffffffff9c, &(0x7f0000000600)='./file0\x00', 0x1, 0x0)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r2, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-close-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
close(r1)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r2, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-close-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
r2 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r2, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
openat(0xffffffffffffff9c, &(0x7f0000000500)='./sys/bus/pci/rescan\x00', 0x1, 0x0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-write-close-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
close(r0)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in cpu_device_down
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: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}}): mkdirat-mount-openat-write-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
write(r0, &(0x7f0000000440)='1\n', 0x2)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
write(r0, &(0x7f0000000400)='0\n', 0x2)
r1 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r1, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000300)='./sys/devices/system/cpu/cpu1/online\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mount-openat-write
detailed listing:
executing program 0:
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(&(0x7f0000000100)=@filename='none\x00', &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program did not crash
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)
program did not crash
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: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}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440), 0x0)
program did not crash
extracting C reproducer
testing compiled C 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: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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
simplifying C reproducer
testing compiled C program (duration=30s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false 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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false 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:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:false Cgroups:false 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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false 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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false 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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false 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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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: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}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true 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-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true 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-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true 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-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true 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-write
program did not crash
testing compiled C program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
program crashed: possible deadlock in kernfs_remove_by_name_ns
testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
validation run: crashed=true
testing program (duration=30s, {Threaded:false Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none 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:true Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./sys\x00', 0x1ff)
mount(0x0, &(0x7f0000000000)='./sys\x00', &(0x7f0000000200)='sysfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000900)='./sys/bus/acpi/devices/LNXCPU:01/eject\x00', 0x1, 0x0)
write(r0, &(0x7f0000000440)='1\n', 0x2)
program crashed: possible deadlock in kernfs_remove_by_name_ns
validation run: crashed=true
reproducing took 1h17m14.515185846s
repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
cpuhp/1/18 is trying to acquire lock:
ffff88802ca1e578 (kn->active#32){++++}-{0:0}, at: kernfs_remove_by_name_ns+0x91/0x100 fs/kernfs/dir.c:1566
but task is already holding lock:
ffffffff8cfbd7e0 (cpuhp_state-down){+.+.}-{0:0}, at: cpuhp_lock_acquire+0x8/0x40 kernel/cpu.c:99
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (cpuhp_state-down){+.+.}-{0:0}:
cpuhp_lock_acquire+0x3a/0x40 kernel/cpu.c:100
cpuhp_kick_ap_work+0x7f/0x1b0 kernel/cpu.c:901
_cpu_down+0x35b/0xbb0 kernel/cpu.c:1170
cpu_down_maps_locked kernel/cpu.c:1217 [inline]
cpu_down kernel/cpu.c:1225 [inline]
cpu_device_down+0x69/0xa0 kernel/cpu.c:1242
device_offline+0x259/0x3a0 drivers/base/core.c:3948
acpi_bus_offline+0x23e/0x400 drivers/acpi/scan.c:163
acpi_scan_try_to_offline drivers/acpi/scan.c:226 [inline]
acpi_scan_hot_remove drivers/acpi/scan.c:258 [inline]
acpi_generic_hotplug_event drivers/acpi/scan.c:374 [inline]
acpi_device_hotplug+0x56c/0xc60 drivers/acpi/scan.c:398
acpi_hotplug_work_fn+0x8f/0xc0 drivers/acpi/osl.c:1160
process_one_work+0x867/0xff0 kernel/workqueue.c:2310
worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #3 (cpu_hotplug_lock){++++}-{0:0}:
percpu_down_write+0x52/0x2f0 kernel/locking/percpu-rwsem.c:217
cpus_write_lock kernel/cpu.c:327 [inline]
_cpu_up+0x77/0x810 kernel/cpu.c:1354
cpu_up+0x16d/0x1a0 kernel/cpu.c:1436
bringup_nonboot_cpus+0x100/0x1a0 kernel/cpu.c:1502
smp_init+0x3a/0x150 kernel/smp.c:1091
kernel_init_freeable+0x3bc/0x560 init/main.c:1581
kernel_init+0x19/0x1b0 init/main.c:1480
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #2 (cpu_add_remove_lock){+.+.}-{3:3}:
__mutex_lock_common+0x1e5/0x2400 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
cpu_maps_update_begin kernel/cpu.c:289 [inline]
cpu_down kernel/cpu.c:1224 [inline]
cpu_device_down+0x3a/0xa0 kernel/cpu.c:1242
device_offline+0x259/0x3a0 drivers/base/core.c:3948
acpi_bus_offline+0x23e/0x400 drivers/acpi/scan.c:163
acpi_scan_try_to_offline drivers/acpi/scan.c:226 [inline]
acpi_scan_hot_remove drivers/acpi/scan.c:258 [inline]
acpi_generic_hotplug_event drivers/acpi/scan.c:374 [inline]
acpi_device_hotplug+0x56c/0xc60 drivers/acpi/scan.c:398
acpi_hotplug_work_fn+0x8f/0xc0 drivers/acpi/osl.c:1160
process_one_work+0x867/0xff0 kernel/workqueue.c:2310
worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #1 (&device->physical_node_lock){+.+.}-{3:3}:
__mutex_lock_common+0x1e5/0x2400 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
acpi_get_first_physical_node drivers/acpi/bus.c:644 [inline]
acpi_primary_dev_companion drivers/acpi/bus.c:663 [inline]
acpi_companion_match+0x86/0x110 drivers/acpi/bus.c:717
acpi_device_uevent_modalias+0x16/0x30 drivers/acpi/device_sysfs.c:283
platform_uevent+0x38/0xb0 drivers/base/platform.c:1357
dev_uevent+0x3a5/0x740 drivers/base/core.c:2344
kobject_uevent_env+0x465/0x890 lib/kobject_uevent.c:572
kobject_synth_uevent+0x457/0x940 lib/kobject_uevent.c:208
uevent_store+0x22/0x60 drivers/base/core.c:2428
kernfs_fop_write_iter+0x3a8/0x500 fs/kernfs/file.c:296
call_write_iter include/linux/fs.h:2179 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0x748/0xd70 fs/read_write.c:594
ksys_write+0x153/0x260 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #0 (kn->active#32){++++}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3120 [inline]
check_prevs_add kernel/locking/lockdep.c:3239 [inline]
validate_chain kernel/locking/lockdep.c:3855 [inline]
__lock_acquire+0x38f7/0x7d40 kernel/locking/lockdep.c:5120
lock_acquire+0x19f/0x400 kernel/locking/lockdep.c:5737
kernfs_drain fs/kernfs/dir.c:478 [inline]
__kernfs_remove+0x5da/0xcb0 fs/kernfs/dir.c:1372
kernfs_remove_by_name_ns+0x91/0x100 fs/kernfs/dir.c:1566
sysfs_remove_file include/linux/sysfs.h:613 [inline]
device_remove_file drivers/base/core.c:2796 [inline]
device_del+0x62f/0xa80 drivers/base/core.c:3613
device_unregister+0x1c/0xc0 drivers/base/core.c:3660
mce_device_remove arch/x86/kernel/cpu/mce/core.c:2575 [inline]
mce_cpu_pre_down+0x33f/0x540 arch/x86/kernel/cpu/mce/core.c:2638
cpuhp_invoke_callback+0x423/0x7e0 kernel/cpu.c:191
cpuhp_thread_fun+0x3b2/0x7f0 kernel/cpu.c:822
smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
other info that might help us debug this:
Chain exists of:
kn->active#32 --> cpu_hotplug_lock --> cpuhp_state-down
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(cpuhp_state-down);
lock(cpu_hotplug_lock);
lock(cpuhp_state-down);
lock(kn->active#32);
*** DEADLOCK ***
2 locks held by cpuhp/1/18:
#0: ffffffff8cfbd670 (cpu_hotplug_lock){++++}-{0:0}, at: lockdep_acquire_cpus_lock+0x5/0x30 kernel/cpu.c:357
#1: ffffffff8cfbd7e0 (cpuhp_state-down){+.+.}-{0:0}, at: cpuhp_lock_acquire+0x8/0x40 kernel/cpu.c:99
stack backtrace:
CPU: 1 PID: 18 Comm: cpuhp/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
check_noncircular+0x2f8/0x400 kernel/locking/lockdep.c:2178
check_prev_add kernel/locking/lockdep.c:3120 [inline]
check_prevs_add kernel/locking/lockdep.c:3239 [inline]
validate_chain kernel/locking/lockdep.c:3855 [inline]
__lock_acquire+0x38f7/0x7d40 kernel/locking/lockdep.c:5120
lock_acquire+0x19f/0x400 kernel/locking/lockdep.c:5737
kernfs_drain fs/kernfs/dir.c:478 [inline]
__kernfs_remove+0x5da/0xcb0 fs/kernfs/dir.c:1372
kernfs_remove_by_name_ns+0x91/0x100 fs/kernfs/dir.c:1566
sysfs_remove_file include/linux/sysfs.h:613 [inline]
device_remove_file drivers/base/core.c:2796 [inline]
device_del+0x62f/0xa80 drivers/base/core.c:3613
device_unregister+0x1c/0xc0 drivers/base/core.c:3660
mce_device_remove arch/x86/kernel/cpu/mce/core.c:2575 [inline]
mce_cpu_pre_down+0x33f/0x540 arch/x86/kernel/cpu/mce/core.c:2638
cpuhp_invoke_callback+0x423/0x7e0 kernel/cpu.c:191
cpuhp_thread_fun+0x3b2/0x7f0 kernel/cpu.c:822
smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
final repro crashed as (corrupted=false):
======================================================
WARNING: possible circular locking dependency detected
syzkaller #0 Not tainted
------------------------------------------------------
cpuhp/1/18 is trying to acquire lock:
ffff88802ca1e578 (kn->active#32){++++}-{0:0}, at: kernfs_remove_by_name_ns+0x91/0x100 fs/kernfs/dir.c:1566
but task is already holding lock:
ffffffff8cfbd7e0 (cpuhp_state-down){+.+.}-{0:0}, at: cpuhp_lock_acquire+0x8/0x40 kernel/cpu.c:99
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #4 (cpuhp_state-down){+.+.}-{0:0}:
cpuhp_lock_acquire+0x3a/0x40 kernel/cpu.c:100
cpuhp_kick_ap_work+0x7f/0x1b0 kernel/cpu.c:901
_cpu_down+0x35b/0xbb0 kernel/cpu.c:1170
cpu_down_maps_locked kernel/cpu.c:1217 [inline]
cpu_down kernel/cpu.c:1225 [inline]
cpu_device_down+0x69/0xa0 kernel/cpu.c:1242
device_offline+0x259/0x3a0 drivers/base/core.c:3948
acpi_bus_offline+0x23e/0x400 drivers/acpi/scan.c:163
acpi_scan_try_to_offline drivers/acpi/scan.c:226 [inline]
acpi_scan_hot_remove drivers/acpi/scan.c:258 [inline]
acpi_generic_hotplug_event drivers/acpi/scan.c:374 [inline]
acpi_device_hotplug+0x56c/0xc60 drivers/acpi/scan.c:398
acpi_hotplug_work_fn+0x8f/0xc0 drivers/acpi/osl.c:1160
process_one_work+0x867/0xff0 kernel/workqueue.c:2310
worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #3 (cpu_hotplug_lock){++++}-{0:0}:
percpu_down_write+0x52/0x2f0 kernel/locking/percpu-rwsem.c:217
cpus_write_lock kernel/cpu.c:327 [inline]
_cpu_up+0x77/0x810 kernel/cpu.c:1354
cpu_up+0x16d/0x1a0 kernel/cpu.c:1436
bringup_nonboot_cpus+0x100/0x1a0 kernel/cpu.c:1502
smp_init+0x3a/0x150 kernel/smp.c:1091
kernel_init_freeable+0x3bc/0x560 init/main.c:1581
kernel_init+0x19/0x1b0 init/main.c:1480
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #2 (cpu_add_remove_lock){+.+.}-{3:3}:
__mutex_lock_common+0x1e5/0x2400 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
cpu_maps_update_begin kernel/cpu.c:289 [inline]
cpu_down kernel/cpu.c:1224 [inline]
cpu_device_down+0x3a/0xa0 kernel/cpu.c:1242
device_offline+0x259/0x3a0 drivers/base/core.c:3948
acpi_bus_offline+0x23e/0x400 drivers/acpi/scan.c:163
acpi_scan_try_to_offline drivers/acpi/scan.c:226 [inline]
acpi_scan_hot_remove drivers/acpi/scan.c:258 [inline]
acpi_generic_hotplug_event drivers/acpi/scan.c:374 [inline]
acpi_device_hotplug+0x56c/0xc60 drivers/acpi/scan.c:398
acpi_hotplug_work_fn+0x8f/0xc0 drivers/acpi/osl.c:1160
process_one_work+0x867/0xff0 kernel/workqueue.c:2310
worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
-> #1 (&device->physical_node_lock){+.+.}-{3:3}:
__mutex_lock_common+0x1e5/0x2400 kernel/locking/mutex.c:596
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
acpi_get_first_physical_node drivers/acpi/bus.c:644 [inline]
acpi_primary_dev_companion drivers/acpi/bus.c:663 [inline]
acpi_companion_match+0x86/0x110 drivers/acpi/bus.c:717
acpi_device_uevent_modalias+0x16/0x30 drivers/acpi/device_sysfs.c:283
platform_uevent+0x38/0xb0 drivers/base/platform.c:1357
dev_uevent+0x3a5/0x740 drivers/base/core.c:2344
kobject_uevent_env+0x465/0x890 lib/kobject_uevent.c:572
kobject_synth_uevent+0x457/0x940 lib/kobject_uevent.c:208
uevent_store+0x22/0x60 drivers/base/core.c:2428
kernfs_fop_write_iter+0x3a8/0x500 fs/kernfs/file.c:296
call_write_iter include/linux/fs.h:2179 [inline]
new_sync_write fs/read_write.c:507 [inline]
vfs_write+0x748/0xd70 fs/read_write.c:594
ksys_write+0x153/0x260 fs/read_write.c:647
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
-> #0 (kn->active#32){++++}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3120 [inline]
check_prevs_add kernel/locking/lockdep.c:3239 [inline]
validate_chain kernel/locking/lockdep.c:3855 [inline]
__lock_acquire+0x38f7/0x7d40 kernel/locking/lockdep.c:5120
lock_acquire+0x19f/0x400 kernel/locking/lockdep.c:5737
kernfs_drain fs/kernfs/dir.c:478 [inline]
__kernfs_remove+0x5da/0xcb0 fs/kernfs/dir.c:1372
kernfs_remove_by_name_ns+0x91/0x100 fs/kernfs/dir.c:1566
sysfs_remove_file include/linux/sysfs.h:613 [inline]
device_remove_file drivers/base/core.c:2796 [inline]
device_del+0x62f/0xa80 drivers/base/core.c:3613
device_unregister+0x1c/0xc0 drivers/base/core.c:3660
mce_device_remove arch/x86/kernel/cpu/mce/core.c:2575 [inline]
mce_cpu_pre_down+0x33f/0x540 arch/x86/kernel/cpu/mce/core.c:2638
cpuhp_invoke_callback+0x423/0x7e0 kernel/cpu.c:191
cpuhp_thread_fun+0x3b2/0x7f0 kernel/cpu.c:822
smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
other info that might help us debug this:
Chain exists of:
kn->active#32 --> cpu_hotplug_lock --> cpuhp_state-down
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(cpuhp_state-down);
lock(cpu_hotplug_lock);
lock(cpuhp_state-down);
lock(kn->active#32);
*** DEADLOCK ***
2 locks held by cpuhp/1/18:
#0: ffffffff8cfbd670 (cpu_hotplug_lock){++++}-{0:0}, at: lockdep_acquire_cpus_lock+0x5/0x30 kernel/cpu.c:357
#1: ffffffff8cfbd7e0 (cpuhp_state-down){+.+.}-{0:0}, at: cpuhp_lock_acquire+0x8/0x40 kernel/cpu.c:99
stack backtrace:
CPU: 1 PID: 18 Comm: cpuhp/1 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Call Trace:
dump_stack_lvl+0x188/0x250 lib/dump_stack.c:106
check_noncircular+0x2f8/0x400 kernel/locking/lockdep.c:2178
check_prev_add kernel/locking/lockdep.c:3120 [inline]
check_prevs_add kernel/locking/lockdep.c:3239 [inline]
validate_chain kernel/locking/lockdep.c:3855 [inline]
__lock_acquire+0x38f7/0x7d40 kernel/locking/lockdep.c:5120
lock_acquire+0x19f/0x400 kernel/locking/lockdep.c:5737
kernfs_drain fs/kernfs/dir.c:478 [inline]
__kernfs_remove+0x5da/0xcb0 fs/kernfs/dir.c:1372
kernfs_remove_by_name_ns+0x91/0x100 fs/kernfs/dir.c:1566
sysfs_remove_file include/linux/sysfs.h:613 [inline]
device_remove_file drivers/base/core.c:2796 [inline]
device_del+0x62f/0xa80 drivers/base/core.c:3613
device_unregister+0x1c/0xc0 drivers/base/core.c:3660
mce_device_remove arch/x86/kernel/cpu/mce/core.c:2575 [inline]
mce_cpu_pre_down+0x33f/0x540 arch/x86/kernel/cpu/mce/core.c:2638
cpuhp_invoke_callback+0x423/0x7e0 kernel/cpu.c:191
cpuhp_thread_fun+0x3b2/0x7f0 kernel/cpu.c:822
smpboot_thread_fn+0x520/0x990 kernel/smpboot.c:164
kthread+0x42e/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287