Extracting prog: 27.579429249s
Minimizing prog: 12m13.1079572s
Simplifying prog options: 0s
Extracting C: 23.129157491s
Simplifying C: 6m2.401862175s


extracting reproducer from 26 programs
first checking the prog from the crash report
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program crashed: invalid opcode in __traceiter_sched_switch
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
write(0xffffffffffffffff, &(0x7f0000000400)='1\n', 0x2)
write(0xffffffffffffffff, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mount-openat-write-write
detailed listing:
executing program 0:
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', 0x0, 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, 0x0, 0x0)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400), 0x0)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, 0x0, 0x0) (fail_nth: 2)

program did not crash
testing program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500), 0x0) (fail_nth: 2)

program did not crash
extracting C reproducer
testing compiled C program (duration=36.366544461s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
simplifying C reproducer
testing compiled C program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
testing compiled C program (duration=36.366544461s, {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:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program did not crash
testing compiled C program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
testing compiled C program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
testing compiled C program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
testing compiled C program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
testing compiled C program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
program crashed: invalid opcode in __traceiter_sched_switch
testing program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program crashed: invalid opcode in __traceiter_sched_switch
validation run: crashed=true
testing program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program crashed: invalid opcode in __traceiter_sched_switch
validation run: crashed=true
testing program (duration=36.366544461s, {Threaded:false Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write-write
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000000)='./debug\x00', 0x1ff)
mount(0x0, &(0x7f0000000100)='./debug\x00', &(0x7f0000000200)='debugfs\x00', 0x0, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000300)='./debug/tracing/events/sched/sched_switch/enable\x00', 0x1, 0x0)
write(r0, &(0x7f0000000400)='1\n', 0x2)
write(r0, &(0x7f0000000500)='0\n', 0x2) (fail_nth: 2)

program crashed: invalid opcode in __traceiter_sched_switch
validation run: crashed=true
reproducing took 21m35.747192625s
repro crashed as (corrupted=false):
RBP: 00007fff2cb27040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f51fb225fac R14: 00007f51fb225fa0 R15: 00007f51fb225fa0
 </TASK>
CFI failure at __traceiter_sched_switch+0xa2/0xe0 include/trace/events/sched.h:222 (target: tp_stub_func+0x0/0x20; expected type: 0x58fa96b7)
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 392 Comm: syz.2.26 Not tainted syzkaller #0 7f3b23dcf55806c758f3cdeb9210fc77c27c120f
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__traceiter_sched_switch+0xa2/0xe0 include/trace/events/sched.h:222
Code: 00 74 05 e8 20 01 86 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 49 89 db 41 ba 49 69 05 a7 45 03 53 f1 74 02 <0f> 0b 41 ff d3 0f 1f 00 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc900010bf390 EFLAGS: 00010013
RAX: 1ffff11022066783 RBX: ffffffff8188bff0 RCX: ffff88810367a600
RDX: ffff888115f91300 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900010bf3d0 R08: 0000000000000000 R09: 1ffffffff0fd97dd
R10: 0000000016e7e085 R11: ffffffff8188bff0 R12: 0000000000000001
R13: ffff888110333c10 R14: ffff888110333c10 R15: dffffc0000000000
FS:  000055556e273500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51fbd58060 CR3: 0000000115d3c000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x1cb1/0x20b0 kernel/sched/core.c:7867
 preempt_schedule_common+0x2d/0x60 kernel/sched/core.c:8059
 preempt_schedule+0xc5/0xe0 kernel/sched/core.c:8083
 preempt_schedule_thunk+0x1a/0x40 arch/x86/entry/thunk.S:12
 on_each_cpu_cond_mask+0x81/0x90 kernel/smp.c:1051
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2284 [inline]
 text_poke_bp_batch+0x61b/0x6e0 arch/x86/kernel/alternative.c:-1
 text_poke_bp+0xbc/0x110 arch/x86/kernel/alternative.c:2721
 __static_call_transform+0x4eb/0x770 arch/x86/kernel/static_call.c:111
 arch_static_call_transform+0x5e/0xd0 arch/x86/kernel/static_call.c:163
 __static_call_update+0x101/0x5f0 kernel/static_call_inline.c:147
 tracepoint_update_call kernel/tracepoint.c:318 [inline]
 tracepoint_remove_func kernel/tracepoint.c:422 [inline]
 tracepoint_probe_unregister+0x6db/0x990 kernel/tracepoint.c:554
 unregister_trace_sched_wakeup include/trace/events/sched.h:178 [inline]
 tracing_sched_unregister kernel/trace/trace_sched_switch.c:89 [inline]
 tracing_stop_sched_switch kernel/trace/trace_sched_switch.c:129 [inline]
 tracing_stop_cmdline_record+0x99/0xb0 kernel/trace/trace_sched_switch.c:140
 __ftrace_event_enable_disable+0x4c3/0x7a0 kernel/trace/trace_events.c:793
 ftrace_event_enable_disable kernel/trace/trace_events.c:880 [inline]
 event_enable_write+0x1ca/0x290 kernel/trace/trace_events.c:1587
 vfs_write+0x3c1/0xfd0 fs/read_write.c:682
 ksys_write+0x145/0x260 fs/read_write.c:737
 __do_sys_write fs/read_write.c:749 [inline]
 __se_sys_write fs/read_write.c:746 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:746
 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f51faf9e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff2cb26fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f51fb225fa0 RCX: 00007f51faf9e019
RDX: 0000000000000002 RSI: 0000200000000500 RDI: 0000000000000003
RBP: 00007fff2cb27040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f51fb225fac R14: 00007f51fb225fa0 R15: 00007f51fb225fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_sched_switch+0xa2/0xe0 include/trace/events/sched.h:222
Code: 00 74 05 e8 20 01 86 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 49 89 db 41 ba 49 69 05 a7 45 03 53 f1 74 02 <0f> 0b 41 ff d3 0f 1f 00 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc900010bf390 EFLAGS: 00010013

RAX: 1ffff11022066783 RBX: ffffffff8188bff0 RCX: ffff88810367a600
RDX: ffff888115f91300 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900010bf3d0 R08: 0000000000000000 R09: 1ffffffff0fd97dd
R10: 0000000016e7e085 R11: ffffffff8188bff0 R12: 0000000000000001
R13: ffff888110333c10 R14: ffff888110333c10 R15: dffffc0000000000
FS:  000055556e273500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51fbd58060 CR3: 0000000115d3c000 CR4: 00000000003526b0

final repro crashed as (corrupted=false):
RBP: 00007fff2cb27040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f51fb225fac R14: 00007f51fb225fa0 R15: 00007f51fb225fa0
 </TASK>
CFI failure at __traceiter_sched_switch+0xa2/0xe0 include/trace/events/sched.h:222 (target: tp_stub_func+0x0/0x20; expected type: 0x58fa96b7)
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 392 Comm: syz.2.26 Not tainted syzkaller #0 7f3b23dcf55806c758f3cdeb9210fc77c27c120f
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__traceiter_sched_switch+0xa2/0xe0 include/trace/events/sched.h:222
Code: 00 74 05 e8 20 01 86 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 49 89 db 41 ba 49 69 05 a7 45 03 53 f1 74 02 <0f> 0b 41 ff d3 0f 1f 00 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc900010bf390 EFLAGS: 00010013
RAX: 1ffff11022066783 RBX: ffffffff8188bff0 RCX: ffff88810367a600
RDX: ffff888115f91300 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900010bf3d0 R08: 0000000000000000 R09: 1ffffffff0fd97dd
R10: 0000000016e7e085 R11: ffffffff8188bff0 R12: 0000000000000001
R13: ffff888110333c10 R14: ffff888110333c10 R15: dffffc0000000000
FS:  000055556e273500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51fbd58060 CR3: 0000000115d3c000 CR4: 00000000003526b0
Call Trace:
 <TASK>
 trace_sched_switch include/trace/events/sched.h:222 [inline]
 __schedule+0x1cb1/0x20b0 kernel/sched/core.c:7867
 preempt_schedule_common+0x2d/0x60 kernel/sched/core.c:8059
 preempt_schedule+0xc5/0xe0 kernel/sched/core.c:8083
 preempt_schedule_thunk+0x1a/0x40 arch/x86/entry/thunk.S:12
 on_each_cpu_cond_mask+0x81/0x90 kernel/smp.c:1051
 on_each_cpu include/linux/smp.h:71 [inline]
 text_poke_sync arch/x86/kernel/alternative.c:2284 [inline]
 text_poke_bp_batch+0x61b/0x6e0 arch/x86/kernel/alternative.c:-1
 text_poke_bp+0xbc/0x110 arch/x86/kernel/alternative.c:2721
 __static_call_transform+0x4eb/0x770 arch/x86/kernel/static_call.c:111
 arch_static_call_transform+0x5e/0xd0 arch/x86/kernel/static_call.c:163
 __static_call_update+0x101/0x5f0 kernel/static_call_inline.c:147
 tracepoint_update_call kernel/tracepoint.c:318 [inline]
 tracepoint_remove_func kernel/tracepoint.c:422 [inline]
 tracepoint_probe_unregister+0x6db/0x990 kernel/tracepoint.c:554
 unregister_trace_sched_wakeup include/trace/events/sched.h:178 [inline]
 tracing_sched_unregister kernel/trace/trace_sched_switch.c:89 [inline]
 tracing_stop_sched_switch kernel/trace/trace_sched_switch.c:129 [inline]
 tracing_stop_cmdline_record+0x99/0xb0 kernel/trace/trace_sched_switch.c:140
 __ftrace_event_enable_disable+0x4c3/0x7a0 kernel/trace/trace_events.c:793
 ftrace_event_enable_disable kernel/trace/trace_events.c:880 [inline]
 event_enable_write+0x1ca/0x290 kernel/trace/trace_events.c:1587
 vfs_write+0x3c1/0xfd0 fs/read_write.c:682
 ksys_write+0x145/0x260 fs/read_write.c:737
 __do_sys_write fs/read_write.c:749 [inline]
 __se_sys_write fs/read_write.c:746 [inline]
 __x64_sys_write+0x7f/0x90 fs/read_write.c:746
 x64_sys_call+0x271c/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:2
 do_syscall_x64 arch/x86/entry/common.c:47 [inline]
 do_syscall_64+0x57/0xf0 arch/x86/entry/common.c:78
 entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f51faf9e019
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff2cb26fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f51fb225fa0 RCX: 00007f51faf9e019
RDX: 0000000000000002 RSI: 0000200000000500 RDI: 0000000000000003
RBP: 00007fff2cb27040 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f51fb225fac R14: 00007f51fb225fa0 R15: 00007f51fb225fa0
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__traceiter_sched_switch+0xa2/0xe0 include/trace/events/sched.h:222
Code: 00 74 05 e8 20 01 86 00 49 8b 7d 08 44 89 e6 48 8b 55 c8 48 8b 4d c0 44 8b 45 d4 49 89 db 41 ba 49 69 05 a7 45 03 53 f1 74 02 <0f> 0b 41 ff d3 0f 1f 00 49 83 c6 18 4c 89 f0 48 c1 e8 03 42 80 3c
RSP: 0018:ffffc900010bf390 EFLAGS: 00010013

RAX: 1ffff11022066783 RBX: ffffffff8188bff0 RCX: ffff88810367a600
RDX: ffff888115f91300 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900010bf3d0 R08: 0000000000000000 R09: 1ffffffff0fd97dd
R10: 0000000016e7e085 R11: ffffffff8188bff0 R12: 0000000000000001
R13: ffff888110333c10 R14: ffff888110333c10 R15: dffffc0000000000
FS:  000055556e273500(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f51fbd58060 CR3: 0000000115d3c000 CR4: 00000000003526b0