Extracting prog: 28.629443435s
Minimizing prog: 5m20.820630593s
Simplifying prog options: 0s
Extracting C: 24.490908052s
Simplifying C: 3m0.890075321s


1 programs, 2 VMs, timeouts [15s 6m0s]
extracting reproducer from 1 programs
single: executing 1 programs separately with timeout 15s
testing program (duration=15s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-gettid-futex-futex-sendto$inet
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
gettid() (async)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)
sendto$inet(0xffffffffffffffff, 0x0, 0x0, 0x40080, 0x0, 0x0)

program crashed: DATA RACE in futex.(*waiterEntry).SetNext
single: successfully extracted reproducer
found reproducer with 5 syscalls
minimizing guilty program
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-gettid-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
gettid() (async)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program crashed: DATA RACE in futex.(*waiterList).PushBack
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-gettid-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
gettid() (async)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-gettid-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
gettid() (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program crashed: DATA RACE in futex.(*waiterEntry).SetNext
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): futex-futex
detailed listing:
executing program 0:
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(0x0, 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(0x0, 0x3, 0x0, &(0x7f0000000040), &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, 0x0, &(0x7f0000048000), 0x0)

program did not crash
testing program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
detailed listing:
executing program 0:
mmap(&(0x7f0000000000/0xff5000)=nil, 0xff5000, 0x1000002, 0x200000005c831, 0xffffffffffffffff, 0x0)
futex(&(0x7f000000cffc), 0x0, 0x0, 0x0, 0x0, 0x0) (async)
futex(&(0x7f0000000080), 0x3, 0x0, &(0x7f0000000040), 0x0, 0x0)

program did not crash
extracting C reproducer
testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program crashed: DATA RACE in futex.(*waiterList).Remove
simplifying C reproducer
testing compiled C program (duration=22.5s, {Threaded:false Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:true Cgroups:true BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program did not crash
testing compiled C program (duration=22.5s, {Threaded:true Repeat:false RepeatTimes:0 Procs:1 Slowdown:1 Sandbox:none SandboxArg:0 Leak:false NetInjection:true NetDevices:true NetReset:false Cgroups:false BinfmtMisc:true CloseFDs:true KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program did not crash
testing compiled C program (duration=22.5s, {Threaded:true 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:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program did not crash
testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:true HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program crashed: DATA RACE in futex.(*waiterList).Remove
testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:true Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program crashed: DATA RACE in futex.(*waiterEntry).SetNext
testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:true Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program crashed: DATA RACE in futex.(*waiterEntry).SetNext
testing compiled C program (duration=22.5s, {Threaded:true Repeat:true RepeatTimes:0 Procs:4 Slowdown:1 Sandbox: SandboxArg:0 Leak:false NetInjection:false NetDevices:false NetReset:false Cgroups:false BinfmtMisc:false CloseFDs:false KCSAN:false DevlinkPCI:false NicVF:false USB:false VhciInjection:false Wifi:false IEEE802154:false Sysctl:false Swap:false UseTmpDir:false HandleSegv:false Trace:false LegacyOptions:{Collide:false Fault:false FaultCall:0 FaultNth:0}}): mmap-futex-futex
program crashed: DATA RACE in futex.(*waiterEntry).SetNext
reproducing took 9m14.831078542s
repro crashed as (corrupted=false):
WARNING: DATA RACE
Write at 0x00c000b6a4e0 by goroutine 868:
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*waiterEntry).SetNext()
      bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/futex/waiter_list.go:231 +0x27
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*waiterList).PushBack()
      bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/futex/waiter_list.go:115 +0x98
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*Manager).WaitPrepare()
      pkg/sentry/kernel/futex/futex.go:599 +0x267
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.futexWaitDuration()
      pkg/sentry/syscalls/linux/sys_futex.go:85 +0xd7
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Futex()
      pkg/sentry/syscalls/linux/sys_futex.go:192 +0x55c
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:143 +0x994
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:323 +0x71
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:283 +0x93
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:258 +0x4af
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:263 +0x1fed
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:98 +0x46c
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
      pkg/sentry/kernel/task_start.go:393 +0x44

Previous read at 0x00c000b6a4e0 by goroutine 872:
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*waiterEntry).Next()
      bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/futex/waiter_list.go:217 +0x24
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*bucket).requeueLocked()
      pkg/sentry/kernel/futex/futex.go:306 +0x24e
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*Manager).doRequeue()
      pkg/sentry/kernel/futex/futex.go:514 +0x457
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*Manager).Requeue()
      pkg/sentry/kernel/futex/futex.go:522 +0x99
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Futex()
      pkg/sentry/syscalls/linux/sys_futex.go:224 +0x125
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:143 +0x994
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:323 +0x71
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:283 +0x93
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:258 +0x4af
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:263 +0x1fed
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:98 +0x46c
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
      pkg/sentry/kernel/task_start.go:393 +0x44

final repro crashed as (corrupted=false):
WARNING: DATA RACE
Write at 0x00c000b6a4e0 by goroutine 868:
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*waiterEntry).SetNext()
      bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/futex/waiter_list.go:231 +0x27
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*waiterList).PushBack()
      bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/futex/waiter_list.go:115 +0x98
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*Manager).WaitPrepare()
      pkg/sentry/kernel/futex/futex.go:599 +0x267
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.futexWaitDuration()
      pkg/sentry/syscalls/linux/sys_futex.go:85 +0xd7
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Futex()
      pkg/sentry/syscalls/linux/sys_futex.go:192 +0x55c
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:143 +0x994
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:323 +0x71
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:283 +0x93
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:258 +0x4af
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:263 +0x1fed
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:98 +0x46c
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
      pkg/sentry/kernel/task_start.go:393 +0x44

Previous read at 0x00c000b6a4e0 by goroutine 872:
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*waiterEntry).Next()
      bazel-out/k8-fastbuild/bin/pkg/sentry/kernel/futex/waiter_list.go:217 +0x24
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*bucket).requeueLocked()
      pkg/sentry/kernel/futex/futex.go:306 +0x24e
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*Manager).doRequeue()
      pkg/sentry/kernel/futex/futex.go:514 +0x457
  gvisor.dev/gvisor/pkg/sentry/kernel/futex.(*Manager).Requeue()
      pkg/sentry/kernel/futex/futex.go:522 +0x99
  gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Futex()
      pkg/sentry/syscalls/linux/sys_futex.go:224 +0x125
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:143 +0x994
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:323 +0x71
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:283 +0x93
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:258 +0x4af
  gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:263 +0x1fed
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:98 +0x46c
  gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.gowrap1()
      pkg/sentry/kernel/task_start.go:393 +0x44