Extracting prog: 8m20.834065841s
Minimizing prog: 36m38.100012242s
Simplifying prog options: 0s
Extracting C: 3m22.032079942s
Simplifying C: 56m36.021182392s


extracting reproducer from 1 programs
testing a last program of every proc
single: executing 1 programs separately with timeout 6m0s
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000540)=@newqdisc={0xa4, 0x24, 0x605, 0x0, 0x0, {0x0, 0x0, 0x0, 0x2a, {0x0, 0x1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x74, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1, 0x56, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffd], [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x4]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x1000}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xa4}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
program crashed: INFO: rcu detected stall in worker_thread
single: successfully extracted reproducer
found reproducer with 2 syscalls
minimizing guilty program
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route
detailed listing:
executing program 0:
socket$nl_route(0x10, 0x3, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): sendmsg$nl_route_sched
detailed listing:
executing program 0:
sendmsg$nl_route_sched(0xffffffffffffffff, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000540)=@newqdisc={0xa4, 0x24, 0x605, 0x0, 0x0, {0x0, 0x0, 0x0, 0x2a, {0x0, 0x1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x74, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1, 0x56, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffd], [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x4]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x1000}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xa4}}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, 0x0, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, 0x0}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={0x0}}, 0x0)

program did not crash
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000540)=@newqdisc={0x34, 0x24, 0x605, 0x0, 0x0, {0x0, 0x0, 0x0, 0x2a, {0x0, 0x1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x4}}]}, 0x34}}, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
simplifying C reproducer
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:namespace 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$nl_route-sendmsg$nl_route_sched
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:true Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: no output from test machine
a never seen crash title: no output from test machine, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false 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}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in worker_thread
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in smp_call_function
a never seen crash title: INFO: rcu detected stall in smp_call_function, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in smp_call_function
a never seen crash title: INFO: rcu detected stall in smp_call_function, ignore
testing compiled C program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
program crashed: INFO: rcu detected stall in corrupted
a never seen crash title: INFO: rcu detected stall in corrupted, ignore
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000540)=@newqdisc={0xa4, 0x24, 0x605, 0x0, 0x0, {0x0, 0x0, 0x0, 0x2a, {0x0, 0x1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x74, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1, 0x56, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffd], [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x4]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x1000}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xa4}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000540)=@newqdisc={0xa4, 0x24, 0x605, 0x0, 0x0, {0x0, 0x0, 0x0, 0x2a, {0x0, 0x1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x74, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1, 0x56, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffd], [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x4]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x1000}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xa4}}, 0x0)

program crashed: INFO: rcu detected stall in corrupted
validation run: crashed=true
testing program (duration=6m0s, {Threaded:true Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:namespace SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false CallComments:true LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$nl_route-sendmsg$nl_route_sched
detailed listing:
executing program 0:
r0 = socket$nl_route(0x10, 0x3, 0x0)
sendmsg$nl_route_sched(r0, &(0x7f0000000300)={0x0, 0x0, &(0x7f0000000400)={&(0x7f0000000540)=@newqdisc={0xa4, 0x24, 0x605, 0x0, 0x0, {0x0, 0x0, 0x0, 0x2a, {0x0, 0x1}, {0xffff, 0xffff}}, [@qdisc_kind_options=@q_taprio={{0xb}, {0x74, 0x2, [@TCA_TAPRIO_ATTR_PRIOMAP={0x56, 0x1, {0x1, [], 0x0, [0x1, 0x56, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffd], [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x4]}}, @TCA_TAPRIO_ATTR_SCHED_ENTRY_LIST={0x10, 0x2, 0x0, 0x1, [{0xc, 0x1, 0x0, 0x1, [@TCA_TAPRIO_SCHED_ENTRY_INTERVAL={0x8, 0x4, 0x1000}]}]}, @TCA_TAPRIO_ATTR_SCHED_CLOCKID={0x8}]}}]}, 0xa4}}, 0x0)

program crashed: INFO: rcu detected stall in worker_thread
validation run: crashed=true
reproducing took 1h54m40.155274533s
repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=7094/1/0x4000000000000000 softirq=17217/17232 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=15105, q=1292 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5785 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Workqueue: events_power_efficient gc_worker
RIP: 0010:check_preemption_disabled+0x0/0xd0 lib/smp_processor_id.c:13
Code: c7 20 77 8e 8c 48 c7 c6 60 77 8e 8c eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 53 65 8b 05 eb cb c0 08 65 48 8b 0d bb cb c0 08 85
RSP: 0018:ffffc90000007c78 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000001000002
RDX: 0000000001000001 RSI: ffffffff8e6b6eaa RDI: ffffffff8c8e7780
RBP: ffff888073005400 R08: ffff888073005483 R09: 1ffff1100e600a90
R10: dffffc0000000000 R11: ffffed100e600a91 R12: ffff888073005400
R13: ffffffff8a01a08a R14: ffff88807adf22c0 R15: ffff888028738000
FS:  0000000000000000(0000) GS:ffff88812363c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f70b02b0 CR3: 000000000fd48000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 lockdep_recursion_inc kernel/locking/lockdep.c:465 [inline]
 lock_release+0xa1/0x3c0 kernel/locking/lockdep.c:5963
 __raw_spin_unlock include/linux/spinlock_api_smp.h:199 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:213
 spin_unlock include/linux/spinlock.h:401 [inline]
 advance_sched+0x99a/0xc80 net/sched/sch_taprio.c:996
 __run_hrtimer kernel/time/hrtimer.c:2075 [inline]
 __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2132
 hrtimer_interrupt+0x4cd/0xaa0 kernel/time/hrtimer.c:2251
 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:lock_is_held_type+0x106/0x150 kernel/locking/lockdep.c:6021
Code: 1c 00 00 b8 ff ff ff ff 65 0f c1 05 8c 2e c1 08 83 f8 01 75 25 9c 58 a9 00 02 00 00 75 39 41 f7 c4 00 02 00 00 74 01 fb 89 d8 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 cb 10 03 00 cc 90 0f 0b 90 48 c7
RSP: 0018:ffffc9000386f8f0 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e924fa6 RDI: ffffffff8c8e7780
RBP: 00000000ffffffff R08: ffffffff919cf4bf R09: 1ffffffff2339e97
R10: dffffc0000000000 R11: fffffbfff2339e98 R12: 0000000000000246
R13: ffff888028738000 R14: ffffffff8ff5a3c0 R15: 0000000000000002
 lock_is_held include/linux/lockdep.h:249 [inline]
 __might_resched+0x37/0x4c0 kernel/sched/core.c:9157
 gc_worker+0x109c/0x1890 net/netfilter/nf_conntrack_core.c:1608
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 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>
rcu: rcu_preempt kthread starved for 10502 jiffies! g15105 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27496 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5820 kernel/sched/core.c:7382
 __schedule_loop kernel/sched/core.c:7459 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7474
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 5983 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:__sanitizer_cov_trace_pc+0x75/0x80 kernel/kcov.c:231
Code: 18 17 00 00 83 fa 02 75 21 48 8b 91 20 17 00 00 48 8b 32 48 8d 7e 01 8b 89 1c 17 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 <e9> c6 62 37 0a cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc900025c7718 EFLAGS: 00000293
RAX: ffffffff81bc9a9e RBX: ffff8880b8243fe8 RCX: ffff88801f360000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900025c7870 R08: ffff88801f36159f R09: 1ffff11003e6c2b3
R10: dffffc0000000000 R11: ffffffff817a6570 R12: 1ffff110170487fd
R13: 0000000000000000 R14: ffff8880b8243fe0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812373c000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f745caf8 CR3: 000000007fade000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 csd_lock_wait kernel/smp.c:389 [inline]
 csd_lock kernel/smp.c:422 [inline]
 smp_call_function_many_cond+0x63e/0x1500 kernel/smp.c:970
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
 flush_tlb_mm_range+0x910/0x10b0 arch/x86/mm/tlb.c:1435
 flush_tlb_page arch/x86/include/asm/tlbflush.h:352 [inline]
 ptep_clear_flush+0x120/0x170 mm/pgtable-generic.c:116
 wp_page_copy mm/memory.c:4039 [inline]
 do_wp_page+0x3c52/0x4b70 mm/memory.c:4438
 handle_pte_fault mm/memory.c:6554 [inline]
 __handle_mm_fault mm/memory.c:6679 [inline]
 handle_mm_fault+0x15d7/0x3750 mm/memory.c:6846
 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0023:0xf720409c
Code: 00 00 8b 7c 24 24 8b 5c 24 10 8b 74 24 14 39 fb 89 f7 1b 7c 24 20 72 4d 39 dd 8b 5c 24 08 19 f3 72 43 8b 74 24 14 8b 5c 24 10 <89> 68 38 8b 7c 24 04 8b 14 24 c6 40 50 01 89 70 4c 8b 74 24 08 89
RSP: 002b:00000000fff14a30 EFLAGS: 00010246
RAX: 00000000f745cac0 RBX: 00000000014a0000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>

final repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	0-...!: (1 GPs behind) idle=7094/1/0x4000000000000000 softirq=17217/17232 fqs=0
rcu: 	(detected by 1, t=10502 jiffies, g=15105, q=1292 ncpus=2)
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5785 Comm: kworker/0:4 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
Workqueue: events_power_efficient gc_worker
RIP: 0010:check_preemption_disabled+0x0/0xd0 lib/smp_processor_id.c:13
Code: c7 20 77 8e 8c 48 c7 c6 60 77 8e 8c eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <55> 41 57 41 56 53 65 8b 05 eb cb c0 08 65 48 8b 0d bb cb c0 08 85
RSP: 0018:ffffc90000007c78 EFLAGS: 00000002
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000001000002
RDX: 0000000001000001 RSI: ffffffff8e6b6eaa RDI: ffffffff8c8e7780
RBP: ffff888073005400 R08: ffff888073005483 R09: 1ffff1100e600a90
R10: dffffc0000000000 R11: ffffed100e600a91 R12: ffff888073005400
R13: ffffffff8a01a08a R14: ffff88807adf22c0 R15: ffff888028738000
FS:  0000000000000000(0000) GS:ffff88812363c000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f70b02b0 CR3: 000000000fd48000 CR4: 00000000003526f0
Call Trace:
 <IRQ>
 lockdep_recursion_inc kernel/locking/lockdep.c:465 [inline]
 lock_release+0xa1/0x3c0 kernel/locking/lockdep.c:5963
 __raw_spin_unlock include/linux/spinlock_api_smp.h:199 [inline]
 _raw_spin_unlock+0x16/0x50 kernel/locking/spinlock.c:213
 spin_unlock include/linux/spinlock.h:401 [inline]
 advance_sched+0x99a/0xc80 net/sched/sch_taprio.c:996
 __run_hrtimer kernel/time/hrtimer.c:2075 [inline]
 __hrtimer_run_queues+0x3bc/0xa10 kernel/time/hrtimer.c:2132
 hrtimer_interrupt+0x4cd/0xaa0 kernel/time/hrtimer.c:2251
 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:lock_is_held_type+0x106/0x150 kernel/locking/lockdep.c:6021
Code: 1c 00 00 b8 ff ff ff ff 65 0f c1 05 8c 2e c1 08 83 f8 01 75 25 9c 58 a9 00 02 00 00 75 39 41 f7 c4 00 02 00 00 74 01 fb 89 d8 <5b> 41 5c 41 5d 41 5e 41 5f 5d e9 cb 10 03 00 cc 90 0f 0b 90 48 c7
RSP: 0018:ffffc9000386f8f0 EFLAGS: 00000206
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000000000000 RSI: ffffffff8e924fa6 RDI: ffffffff8c8e7780
RBP: 00000000ffffffff R08: ffffffff919cf4bf R09: 1ffffffff2339e97
R10: dffffc0000000000 R11: fffffbfff2339e98 R12: 0000000000000246
R13: ffff888028738000 R14: ffffffff8ff5a3c0 R15: 0000000000000002
 lock_is_held include/linux/lockdep.h:249 [inline]
 __might_resched+0x37/0x4c0 kernel/sched/core.c:9157
 gc_worker+0x109c/0x1890 net/netfilter/nf_conntrack_core.c:1608
 process_one_work kernel/workqueue.c:3495 [inline]
 process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
 kthread+0x38b/0x480 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>
rcu: rcu_preempt kthread starved for 10502 jiffies! g15105 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=1
rcu: 	Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt     state:R  running task     stack:27496 pid:16    tgid:16    ppid:2      task_flags:0x208040 flags:0x00080000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5583 [inline]
 __schedule+0x17dd/0x5820 kernel/sched/core.c:7382
 __schedule_loop kernel/sched/core.c:7459 [inline]
 schedule+0x164/0x2b0 kernel/sched/core.c:7474
 schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
 rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
 kthread+0x38b/0x480 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>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 5983 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:__sanitizer_cov_trace_pc+0x75/0x80 kernel/kcov.c:231
Code: 18 17 00 00 83 fa 02 75 21 48 8b 91 20 17 00 00 48 8b 32 48 8d 7e 01 8b 89 1c 17 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 <e9> c6 62 37 0a cc 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0000:ffffc900025c7718 EFLAGS: 00000293
RAX: ffffffff81bc9a9e RBX: ffff8880b8243fe8 RCX: ffff88801f360000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900025c7870 R08: ffff88801f36159f R09: 1ffff11003e6c2b3
R10: dffffc0000000000 R11: ffffffff817a6570 R12: 1ffff110170487fd
R13: 0000000000000000 R14: ffff8880b8243fe0 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff88812373c000(0000) knlGS:0000000000000000
CS:  0010 DS: 002b ES: 002b CR0: 0000000080050033
CR2: 00000000f745caf8 CR3: 000000007fade000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 csd_lock_wait kernel/smp.c:389 [inline]
 csd_lock kernel/smp.c:422 [inline]
 smp_call_function_many_cond+0x63e/0x1500 kernel/smp.c:970
 __flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
 flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
 flush_tlb_mm_range+0x910/0x10b0 arch/x86/mm/tlb.c:1435
 flush_tlb_page arch/x86/include/asm/tlbflush.h:352 [inline]
 ptep_clear_flush+0x120/0x170 mm/pgtable-generic.c:116
 wp_page_copy mm/memory.c:4039 [inline]
 do_wp_page+0x3c52/0x4b70 mm/memory.c:4438
 handle_pte_fault mm/memory.c:6554 [inline]
 __handle_mm_fault mm/memory.c:6679 [inline]
 handle_mm_fault+0x15d7/0x3750 mm/memory.c:6846
 do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343
 handle_page_fault arch/x86/mm/fault.c:1483 [inline]
 exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0023:0xf720409c
Code: 00 00 8b 7c 24 24 8b 5c 24 10 8b 74 24 14 39 fb 89 f7 1b 7c 24 20 72 4d 39 dd 8b 5c 24 08 19 f3 72 43 8b 74 24 14 8b 5c 24 10 <89> 68 38 8b 7c 24 04 8b 14 24 c6 40 50 01 89 70 4c 8b 74 24 08 89
RSP: 002b:00000000fff14a30 EFLAGS: 00010246
RAX: 00000000f745cac0 RBX: 00000000014a0000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00000000ffffffff R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
 </TASK>