Extracting prog: 2m42.076145786s
Minimizing prog: 1h37m25.737675825s
Simplifying prog options: 0s
Extracting C: 2m19.780965256s
Simplifying C: 42m20.151026149s


extracting reproducer from 68 programs
testing a last program of every proc
single: executing 18 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-prctl$PR_SET_SECCOMP-timer_create-timer_settime-signalfd-connect$inet6-write$binfmt_elf64
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r1 = getpid()
sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
prctl$PR_SET_SECCOMP(0x10, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)
connect$inet6(r0, &(0x7f0000000500)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @remote}}, 0x1c)
write$binfmt_elf64(r0, &(0x7f0000000000)=ANY=[], 0xc9)

program crashed: INFO: rcu detected stall in do_idle
single: successfully extracted reproducer
found reproducer with 17 syscalls
minimizing guilty program
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-prctl$PR_SET_SECCOMP-timer_create-timer_settime-signalfd-connect$inet6
detailed listing:
executing program 0:
r0 = socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r1 = getpid()
sched_setscheduler(r1, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
prctl$PR_SET_SECCOMP(0x10, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)
connect$inet6(r0, &(0x7f0000000500)={0xa, 0x0, 0x0, @ipv4={'\x00', '\xff\xff', @remote}}, 0x1c)

program crashed: INFO: rcu detected stall in corrupted
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-prctl$PR_SET_SECCOMP-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
prctl$PR_SET_SECCOMP(0x10, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in sys_sendto
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-prctl$PR_SET_SECCOMP-timer_create-timer_settime
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
prctl$PR_SET_SECCOMP(0x10, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)

program did not crash
testing program (duration=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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-prctl$PR_SET_SECCOMP-timer_create-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
prctl$PR_SET_SECCOMP(0x10, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-prctl$PR_SET_SECCOMP-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
prctl$PR_SET_SECCOMP(0x10, 0x0, 0x0)
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-prctl$PR_SET_NAME-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
prctl$PR_SET_NAME(0xf, &(0x7f0000000000)='l%\x86\xce6\xdb\f\xcf\x19|\xc9O\x7f\xce\x8f\x7f\x1c\xeay\x06\x00\x00\x00\a0\r\x13\xaa\x84r\xd7^\xe82\x0f\x1a\xf1\x02\x00\x1e&{\xee2\x95I\xca\xbevl\x12\xb6 \xd4')
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in do_idle
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-prctl$PR_SET_SECCOMP-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
prctl$PR_SET_SECCOMP(0x16, 0x2, &(0x7f0000000000)={0x1, &(0x7f00000000c0)=[{0x200000000006, 0x0, 0x0, 0x7ffc1ffb}]})
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in do_idle
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-futex-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
futex(&(0x7f0000001300)=0x80000001, 0x800000000006, 0x0, 0x0, 0x0, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in do_idle
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
sched_setscheduler(0x0, 0x2, &(0x7f0000000040)=0x6)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
r0 = getpid()
sched_setscheduler(r0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in do_idle
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-getpid-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
getpid()
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in do_idle
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-mmap-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
mmap(&(0x7f0000000000/0x3000)=nil, 0x3000, 0x0, 0x10, 0xffffffffffffffff, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prctl$PR_SCHED_CORE-prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prctl$PR_SCHED_CORE(0x3e, 0x1, 0x0, 0x2, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in do_idle
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-syz_emit_ethernet-prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
syz_emit_ethernet(0x46, &(0x7f00000003c0)={@local, @remote, @void, {@ipv6={0x86dd, @icmpv6={0x0, 0x6, '\x00', 0x10, 0x3a, 0xff, @remote, @mcast2, {[], @ndisc_ra={0x86, 0x0, 0x0, 0xff, 0x0, 0x200}}}}}}, 0x0)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): socket$inet6-prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
socket$inet6(0xa, 0x3, 0xff)
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in corrupted
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, 0x0, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, 0x0)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, 0x0, &(0x7f0000000100))
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, 0x0)
timer_settime(0x0, 0x0, &(0x7f000006b000)={{0x0, 0x8}, {0x0, 0x9}}, 0x0)
signalfd(0xffffffffffffffff, 0x0, 0x0)

program did not crash
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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
detailed listing:
executing program 0:
prlimit64(0x0, 0xe, &(0x7f0000000080)={0x8, 0x8d}, 0x0)
sched_setscheduler(0x0, 0x2, &(0x7f0000000200)=0x4)
timer_create(0x0, &(0x7f0000000680)={0x0, 0x21, 0x0, @tid=0xffffffffffffffff}, &(0x7f0000000100))
timer_settime(0x0, 0x0, 0x0, 0x0)
signalfd(0xffffffffffffffff, 0x0, 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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
simplifying C reproducer
testing compiled C program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=6m0s, {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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=6m0s, {Threaded:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:true VhciInjection:true Wifi:true IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_enter_from_user_mode
a never seen crash title: INFO: rcu detected stall in syscall_enter_from_user_mode, ignore
testing compiled C program (duration=6m0s, {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: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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=6m0s, {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:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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:false 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 LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
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:false Repeat:true RepeatTimes:0 Procs:5 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:true BinfmtMisc:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:true Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=6m0s, {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:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:true Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
testing compiled C program (duration=6m0s, {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:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:true UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
testing compiled C program (duration=6m0s, {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:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
reproducing took 2h24m47.745850616s
repro crashed as (corrupted=true):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=5313, q=121)
rcu: All QSes seen, last rcu_preempt kthread activity 10498 (4294955057-4294944559), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10498 jiffies! g5313 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:26712 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4189 Comm: syz-executor219 Not tainted 5.15.177-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:hrtimer_start_range_ns+0x51/0xc80
Code: e8 34 2b 11 00 49 8d 5c 24 28 48 89 d8 48 c1 e8 03 42 80 3c 38 00 74 08 48 89 df e8 79 13 5b 00 48 83 3b 00 0f 84 e5 0a 00 00 <8b> 5c 24 0c c1 eb 02 83 e3 01 49 8d 6c 24 3a 48 89 e8 48 c1 e8 03
RSP: 0018:ffffc90002f7f990 EFLAGS: 00000082
RAX: 1ffff11003d8e81b RBX: ffff88801ec740d8 RCX: ffff888075b9bb80
RDX: 0000000000000000 RSI: 00000029c5436420 RDI: ffff88801ec740b0
RBP: ffffc90002f7faf0 R08: ffffffff816f5918 R09: fffffbfff1c150de
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88801ec740b0
R13: 000000000039bd17 R14: 0000000000000000 R15: dffffc0000000000
FS:  000055556b2963c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002006b000 CR3: 00000000747be000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 posixtimer_rearm+0x1ad/0x3f0 kernel/time/posix-timers.c:328
 dequeue_signal+0x1ed/0x520 kernel/signal.c:696
 get_signal+0x52e/0x14e0 kernel/signal.c:2781
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f1742965e59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 19 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffd55ff6e28 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007f1742965e59
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f17429bd036
R13: 00007ffd55ff6e60 R14: 00007ffd55ff6ea0 R15: 0000000000000000
 </TASK>
INFO: NMI handler (nmi_cpu_backtrace_handler) took too long to run: 1.091 msecs

report is corrupted, running repro again
testing compiled C program (duration=6m0s, {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:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in corrupted
report is corrupted, running repro again
testing compiled C program (duration=6m0s, {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:false CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:true Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:true HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): prlimit64-sched_setscheduler-timer_create-timer_settime-signalfd
program crashed: INFO: rcu detected stall in syscall_exit_to_user_mode
final repro crashed as (corrupted=false):
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
	(detected by 0, t=10502 jiffies, g=5285, q=76)
rcu: All QSes seen, last rcu_preempt kthread activity 10502 (4294953321-4294942819), jiffies_till_next_fqs=1, root ->qsmask 0x0
rcu: rcu_preempt kthread starved for 10502 jiffies! g5285 f0x2 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0
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:26880 pid:   15 ppid:     2 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5027 [inline]
 __schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
 schedule+0x11b/0x1f0 kernel/sched/core.c:6456
 schedule_timeout+0x1b9/0x300 kernel/time/timer.c:1914
 rcu_gp_fqs_loop+0x2bf/0x1080 kernel/rcu/tree.c:1972
 rcu_gp_kthread+0xa4/0x360 kernel/rcu/tree.c:2145
 kthread+0x3f6/0x4f0 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 0
CPU: 0 PID: 4189 Comm: syz-executor201 Not tainted 5.15.177-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
 nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
 nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
 trigger_single_cpu_backtrace include/linux/nmi.h:166 [inline]
 rcu_check_gp_kthread_starvation+0x1d2/0x240 kernel/rcu/tree_stall.h:487
 print_other_cpu_stall+0x137a/0x14d0 kernel/rcu/tree_stall.h:592
 check_cpu_stall kernel/rcu/tree_stall.h:745 [inline]
 rcu_pending kernel/rcu/tree.c:3932 [inline]
 rcu_sched_clock_irq+0xa38/0x1150 kernel/rcu/tree.c:2619
 update_process_times+0x196/0x200 kernel/time/timer.c:1818
 tick_sched_handle kernel/time/tick-sched.c:254 [inline]
 tick_sched_timer+0x386/0x550 kernel/time/tick-sched.c:1473
 __run_hrtimer kernel/time/hrtimer.c:1688 [inline]
 __hrtimer_run_queues+0x55b/0xcf0 kernel/time/hrtimer.c:1752
 hrtimer_interrupt+0x392/0x980 kernel/time/hrtimer.c:1814
 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1097 [inline]
 __sysvec_apic_timer_interrupt+0x13b/0x4b0 arch/x86/kernel/apic/apic.c:1114
 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1108 [inline]
 sysvec_apic_timer_interrupt+0x9b/0xc0 arch/x86/kernel/apic/apic.c:1108
 </IRQ>
 <TASK>
 asm_sysvec_apic_timer_interrupt+0x16/0x20 arch/x86/include/asm/idtentry.h:676
RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline]
RIP: 0010:_raw_spin_unlock_irq+0x25/0x40 kernel/locking/spinlock.c:202
Code: 31 61 f6 ff 90 53 48 89 fb 48 83 c7 18 48 8b 74 24 08 e8 0e 15 1a f7 48 89 df e8 66 69 1b f7 e8 b1 25 3e f7 fb bf 01 00 00 00 <e8> 66 ae 0e f7 65 8b 05 77 91 b9 75 85 c0 74 02 5b c3 e8 44 ae b7
RSP: 0018:ffffc90002fdfbc0 EFLAGS: 00000282
RAX: 98c7a0365a3e2500 RBX: ffff88802a458940 RCX: ffffffff96a92f03
RDX: dffffc0000000000 RSI: ffffffff8aab2b80 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff81870420 R09: ffffed100548b129
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000021
R13: dffffc0000000000 R14: ffff88802a458dd8 R15: ffff88802a458940
 spin_unlock_irq include/linux/spinlock.h:413 [inline]
 get_signal+0x13ee/0x14e0 kernel/signal.c:2903
 arch_do_signal_or_restart+0xc3/0x1890 arch/x86/kernel/signal.c:867
 handle_signal_work kernel/entry/common.c:154 [inline]
 exit_to_user_mode_loop+0x97/0x130 kernel/entry/common.c:178
 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
 __syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
 syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
 do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ff9b5e41e59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 21 19 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fff3b2679c8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 00007ff9b5e41e59
RDX: 000000002006b000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff9b5e99036
R13: 00007fff3b267a00 R14: 00007fff3b267a40 R15: 0000000000000000
 </TASK>