WARNING: DATA RACE
Write at 0x00c4206ed838 by goroutine 531:
  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.(*masterFileOperations).EventRegister()
      pkg/sentry/fs/tty/master.go:127 +0x8b
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventRegister()
      pkg/sentry/fs/file.go:177 +0x6a
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel/epoll.(*EventPoll).initEntryReadiness()
      pkg/sentry/kernel/epoll/epoll.go:315 +0x11f
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel/epoll.(*EventPoll).AddEntry()
      pkg/sentry/kernel/epoll/epoll.go:398 +0x440
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls.AddEpoll()
      pkg/sentry/syscalls/epoll.go:67 +0x162
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.EpollCtl()
      pkg/sentry/syscalls/linux/sys_epoll.go:100 +0x252
  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 0x00c4206ed838 by goroutine 590:
  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.(*masterFileOperations).EventRegister()
      pkg/sentry/fs/tty/master.go:128 +0xe1
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventRegister()
      pkg/sentry/fs/file.go:177 +0x6a
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.readv()
      pkg/sentry/syscalls/linux/sys_read.go:202 +0x3cb
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Read()
      pkg/sentry/syscalls/linux/sys_read.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