WARNING: DATA RACE
Write at 0x00c4203e9200 by goroutine 44:
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).SetNext()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:164 +0x50
  gvisor.googlesource.com/gvisor/pkg/ilist.(*List).PushBack()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:72 +0xee
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventRegister()
      pkg/waiter/waiter.go:172 +0x86
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*slaveFileOperations).EventRegister()
      pkg/sentry/fs/tty/slave.go:112 +0xa0
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventRegister()
      pkg/sentry/fs/file.go:177 +0x6a
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.writev()
      pkg/sentry/syscalls/linux/sys_write.go:202 +0x3cb
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Write()
      pkg/sentry/syscalls/linux/sys_write.go:67 +0x295
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:162 +0x14e
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:280 +0x7d
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:241 +0xc3
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:216 +0x19e
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:219 +0x1501
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:95 +0x264

Previous write at 0x00c4203e9200 by goroutine 495:
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).SetNext()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:164 +0x50
  gvisor.googlesource.com/gvisor/pkg/ilist.(*List).PushBack()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:68 +0x4a
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventRegister()
      pkg/waiter/waiter.go:172 +0x86
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*slaveFileOperations).EventRegister()
      pkg/sentry/fs/tty/slave.go:113 +0x10f
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventRegister()
      pkg/sentry/fs/file.go:177 +0x6a
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls.(*PollFD).initReadiness()
      pkg/sentry/syscalls/polling.go:61 +0x2a9
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls.Poll()
      pkg/sentry/syscalls/polling.go:96 +0x17c
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.doPoll()
      pkg/sentry/syscalls/linux/sys_poll.go:70 +0x2b5
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.poll()
      pkg/sentry/syscalls/linux/sys_poll.go:291 +0x63
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Poll()
      pkg/sentry/syscalls/linux/sys_poll.go:309 +0x60
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:162 +0x14e
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:280 +0x7d
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:241 +0xc3
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:216 +0x19e
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:219 +0x1501
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:95 +0x264