Extracting prog: 5m50.705964394s
Minimizing prog: 53m28.887933198s
Simplifying prog options: 0s
Extracting C: 2m37.379439119s
Simplifying C: 53m38.879412842s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 30s
testing program (duration=30s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
single: failed to extract reproducer
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program crashed: INFO: rcu detected stall in corrupted
single: successfully extracted reproducer
found reproducer with 4 syscalls
minimizing guilty program
testing program (duration=5m47.907735102s, {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
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)

program did not crash
testing program (duration=5m47.907735102s, {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-write$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
write$vga_arbiter(0xffffffffffffffff, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, 0x0, 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, 0x0, &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', 0x0, 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, 0x0, 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program did not crash
testing program (duration=5m47.907735102s, {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$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=5m47.907735102s, {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$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
simplifying C reproducer
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {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: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$vga_arbiter
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection: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$vga_arbiter
program crashed: INFO: task hung in crda_timeout_work
a never seen crash title: INFO: task hung in crda_timeout_work, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: task hung in genl_rcv_msg
a never seen crash title: INFO: task hung in genl_rcv_msg, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true 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$vga_arbiter
program crashed: INFO: rcu detected stall in ieee80211_handle_queued_frames
a never seen crash title: INFO: rcu detected stall in ieee80211_handle_queued_frames, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: task hung in reg_process_self_managed_hints
a never seen crash title: INFO: task hung in reg_process_self_managed_hints, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi: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$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true 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$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: rcu detected stall in corrupted
testing program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
detailed listing:
executing program 0:
mkdirat(0xffffffffffffff9c, &(0x7f0000000280)='./trace\x00', 0x1ff)
mount(0x0, &(0x7f00000002c0)='./trace\x00', &(0x7f0000000300)='tracefs\x00', 0x2, 0x0)
r0 = openat(0xffffffffffffff9c, &(0x7f0000000340)='./trace/set_event\x00', 0x2, 0x0)
write$vga_arbiter(r0, &(0x7f0000000380)=@other={'lock', ' ', 'none'}, 0xa)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
reproducing took 2h4m30.698223029s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P68/2:b..l P15/4:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=19793, q=1047 ncpus=2)
task:ksoftirqd/0     state:R  running task     stack:22264 pid:15    tgid:15    ppid:2      task_flags:0x4208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7284
 preempt_schedule_notrace+0x56/0x90 kernel/sched/core.c:7556
 preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
 class_preempt_notrace_destructor include/linux/preempt.h:497 [inline]
 trace_event_raw_event_lock+0x241/0x280 include/trace/events/lock.h:49
 __do_trace_lock_release include/trace/events/lock.h:68 [inline]
 trace_lock_release include/trace/events/lock.h:68 [inline]
 lock_release+0x396/0x3c0 kernel/locking/lockdep.c:5954
 rcu_lock_release include/linux/rcupdate.h:319 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 sta_info_get_bss+0x36b/0x390 net/mac80211/sta_info.c:-1
 ieee80211_rx_for_interface+0x1ad/0x770 net/mac80211/rx.c:5344
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5553 [inline]
 ieee80211_rx_list+0x2e99/0x3b40 net/mac80211/rx.c:5726
 ieee80211_rx_napi+0x1ad/0x3d0 net/mac80211/rx.c:5749
 ieee80211_rx include/net/mac80211.h:5449 [inline]
 ieee80211_handle_queued_frames+0xe4/0x1d0 net/mac80211/main.c:452
 tasklet_action_common+0x31c/0x600 kernel/softirq.c:961
 handle_softirqs+0x1da/0x6d0 kernel/softirq.c:645
 run_ksoftirqd+0x53/0x190 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:kworker/u8:4    state:D stack:24192 pid:68    tgid:68    ppid:2      task_flags:0x4208160 flags:0x00080000
Workqueue: events_unbound nsim_dev_trap_report_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule_rtlock+0x30/0x70 kernel/sched/core.c:7440
 rtlock_slowlock_locked+0x35c9/0x3c20 kernel/locking/rtmutex.c:1895
 rtlock_slowlock kernel/locking/rtmutex.c:1922 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x165/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:45 [inline]
 tasklet_lock_callback kernel/softirq.c:900 [inline]
 tasklet_action_common+0xc5/0x600 kernel/softirq.c:950
 handle_softirqs+0x1da/0x6d0 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 __local_bh_enable_ip+0x16f/0x2b0 kernel/softirq.c:325
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 spin_unlock_bh include/linux/spinlock_rt.h:122 [inline]
 nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline]
 nsim_dev_trap_report_work+0x871/0xcb0 drivers/net/netdevsim/dev.c:847
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>

report is corrupted, running repro again
testing compiled C program (duration=5m47.907735102s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:false Wifi:true IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mkdirat-mount-openat-write$vga_arbiter
program crashed: INFO: rcu detected stall in ieee80211_handle_queued_frames
final repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P30 P2975/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=10125, q=811 ncpus=2)
task:kworker/u8:15   state:D stack:19800 pid:2975  tgid:2975  ppid:2      task_flags:0x4208060 flags:0x00080000
Workqueue: events_unbound cfg80211_wiphy_work
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5533 [inline]
 __schedule+0x16d9/0x5700 kernel/sched/core.c:7284
 __schedule_loop kernel/sched/core.c:7361 [inline]
 schedule_rtlock+0x30/0x70 kernel/sched/core.c:7440
 rtlock_slowlock_locked+0x35c9/0x3c20 kernel/locking/rtmutex.c:1895
 rtlock_slowlock kernel/locking/rtmutex.c:1922 [inline]
 rtlock_lock kernel/locking/spinlock_rt.c:43 [inline]
 __rt_spin_lock kernel/locking/spinlock_rt.c:49 [inline]
 rt_spin_lock+0x165/0x400 kernel/locking/spinlock_rt.c:57
 spin_lock include/linux/spinlock_rt.h:45 [inline]
 tasklet_lock_callback kernel/softirq.c:900 [inline]
 tasklet_action_common+0xc5/0x600 kernel/softirq.c:950
 handle_softirqs+0x1da/0x6d0 kernel/softirq.c:645
 __do_softirq kernel/softirq.c:679 [inline]
 __local_bh_enable_ip+0x16f/0x2b0 kernel/softirq.c:325
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 spin_unlock_bh include/linux/spinlock_rt.h:122 [inline]
 cfg80211_inform_single_bss_data+0x135d/0x1bf0 net/wireless/scan.c:2462
 cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
 cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
 ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
 ieee80211_rx_bss_info net/mac80211/ibss.c:1065 [inline]
 ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1546 [inline]
 ieee80211_ibss_rx_queued_mgmt+0x1ce3/0x2c40 net/mac80211/ibss.c:1573
 ieee80211_iface_process_skb net/mac80211/iface.c:1809 [inline]
 ieee80211_iface_work+0x78a/0x1010 net/mac80211/iface.c:1863
 cfg80211_wiphy_work+0x29e/0x420 net/wireless/core.c:564
 process_one_work kernel/workqueue.c:3396 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
task:ksoftirqd/1     state:R  running task     stack:22424 pid:30    tgid:30    ppid:2      task_flags:0x4208040 flags:0x00080000
Call Trace:
 <IRQ>
 sched_show_task+0x4aa/0x5f0 kernel/sched/core.c:8250
 rcu_print_detail_task_stall_rnp kernel/rcu/tree_stall.h:292 [inline]
 print_other_cpu_stall+0xfbf/0x1350 kernel/rcu/tree_stall.h:683
 check_cpu_stall kernel/rcu/tree_stall.h:860 [inline]
 rcu_pending kernel/rcu/tree.c:3744 [inline]
 rcu_sched_clock_irq+0x9fe/0x10e0 kernel/rcu/tree.c:2749
 update_process_times+0x234/0x2d0 kernel/time/timer.c:2475
 tick_sched_handle kernel/time/tick-sched.c:296 [inline]
 tick_nohz_handler+0x38f/0x6b0 kernel/time/tick-sched.c:317
 __run_hrtimer kernel/time/hrtimer.c:2074 [inline]
 __hrtimer_run_queues+0x3a0/0xaf0 kernel/time/hrtimer.c:2131
 hrtimer_interrupt+0x4c2/0xa80 kernel/time/hrtimer.c:2250
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1051 [inline]
 __sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1068
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
 sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1062
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:check_kcov_mode kernel/kcov.c:-1 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:242 [inline]
RIP: 0010:__sanitizer_cov_trace_switch+0x87/0x120 kernel/kcov.c:347
Code: ba 00 01 00 00 eb 0c 49 ff c1 4c 39 c8 0f 84 98 00 00 00 4e 8b 5c ce 10 65 48 8b 1d 03 6f df 11 41 89 de 41 81 e6 00 00 00 ff <41> 8b a8 fc 0b 00 00 44 21 d5 41 09 ee 74 1e 85 ed 74 ca 81 fb ff
RSP: 0000:ffffc90000a4e6a0 EFLAGS: 00000246
RAX: 0000000000000020 RBX: 8000000000000002 RCX: 0000000000000005
RDX: ffffffff81c8caa5 RSI: ffffffff8f227360 RDI: 000000000000000a
RBP: 0000000000000100 R08: ffff88801e681f40 R09: 000000000000000d
R10: 0000000000000100 R11: 000000000000000d R12: dffffc0000000000
R13: 0000000000000b04 R14: 0000000000000000 R15: 00000000000d8aaa
 rb_event_length+0x45/0x400 kernel/trace/ring_buffer.c:213
 rb_read_data_buffer+0xe2/0x5b0 kernel/trace/ring_buffer.c:1937
 check_buffer+0x288/0x860 kernel/trace/ring_buffer.c:4772
 __rb_reserve_next+0x549/0xdd0 kernel/trace/ring_buffer.c:4873
 rb_reserve_next_event kernel/trace/ring_buffer.c:5010 [inline]
 ring_buffer_lock_reserve+0xc0d/0x10c0 kernel/trace/ring_buffer.c:5069
 __trace_buffer_lock_reserve kernel/trace/trace.h:1677 [inline]
 trace_event_buffer_lock_reserve+0x1d4/0x700 kernel/trace/trace.c:1924
 trace_event_buffer_reserve+0x1ef/0x2d0 kernel/trace/trace_events.c:715
 do_trace_event_raw_event_lock include/trace/events/lock.h:49 [inline]
 trace_event_raw_event_lock+0x127/0x280 include/trace/events/lock.h:49
 __do_trace_lock_release include/trace/events/lock.h:68 [inline]
 trace_lock_release include/trace/events/lock.h:68 [inline]
 lock_release+0x396/0x3c0 kernel/locking/lockdep.c:5954
 rcu_lock_release include/linux/rcupdate.h:319 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 class_rcu_destructor include/linux/rcupdate.h:1216 [inline]
 unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709
 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
 kasan_save_stack mm/kasan/common.c:57 [inline]
 kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
 poison_kmalloc_redzone mm/kasan/common.c:409 [inline]
 __kasan_kmalloc+0x93/0xb0 mm/kasan/common.c:426
 kasan_kmalloc include/linux/kasan.h:263 [inline]
 __do_kmalloc_node mm/slub.c:5414 [inline]
 __kmalloc_noprof+0x41d/0x790 mm/slub.c:5439
 _kmalloc_noprof include/linux/slab.h:995 [inline]
 _kzalloc_noprof include/linux/slab.h:1312 [inline]
 cfg80211_inform_single_bss_data+0x986/0x1bf0 net/wireless/scan.c:2418
 cfg80211_inform_bss_data+0x263/0x3cc0 net/wireless/scan.c:3302
 cfg80211_inform_bss_frame_data+0x3c7/0x840 net/wireless/scan.c:3394
 ieee80211_bss_info_update+0x791/0xa50 net/mac80211/scan.c:230
 ieee80211_scan_rx+0x552/0xa40 net/mac80211/scan.c:364
 __ieee80211_rx_handle_packet net/mac80211/rx.c:5433 [inline]
 ieee80211_rx_list+0x2d23/0x3b40 net/mac80211/rx.c:5726
 ieee80211_rx_napi+0x1ad/0x3d0 net/mac80211/rx.c:5749
 ieee80211_rx include/net/mac80211.h:5449 [inline]
 ieee80211_handle_queued_frames+0xe4/0x1d0 net/mac80211/main.c:452
 tasklet_action_common+0x31c/0x600 kernel/softirq.c:961
 handle_softirqs+0x1da/0x6d0 kernel/softirq.c:645
 run_ksoftirqd+0x53/0x190 kernel/softirq.c:1099
 smpboot_thread_fn+0x565/0xa70 kernel/smpboot.c:160
 kthread+0x38b/0x470 kernel/kthread.c:436
 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>