WARNING: DATA RACE
Read at 0x00c420422708 by goroutine 135:
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).Next()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:150 +0x4c
  gvisor.googlesource.com/gvisor/pkg/ilist.(*List).Remove()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:125 +0x6a
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventUnregister()
      pkg/waiter/waiter.go:167 +0x67
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*slaveFileOperations).EventUnregister()
      pkg/sentry/fs/tty/slave.go:114 +0x96
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventUnregister()
      pkg/sentry/fs/file.go:180 +0x60
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.readv()
      pkg/sentry/syscalls/linux/sys_read.go:223 +0x5e1
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Readv()
      pkg/sentry/syscalls/linux/sys_read.go:144 +0x28c
  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:278 +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 +0x19c
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:217 +0x157c
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:95 +0x264

Previous write at 0x00c420422708 by goroutine 173:
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Entry).SetNext()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:160 +0x50
  gvisor.googlesource.com/gvisor/pkg/ilist.(*List).Remove()
      bazel-out/k8-fastbuild/bin/pkg/ilist/interface_list.go:128 +0x9b
  gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).EventUnregister()
      pkg/waiter/waiter.go:167 +0x67
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tty.(*slaveFileOperations).EventUnregister()
      pkg/sentry/fs/tty/slave.go:115 +0xfb
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).EventUnregister()
      pkg/sentry/fs/file.go:180 +0x60
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.readv()
      pkg/sentry/syscalls/linux/sys_read.go:223 +0x5e1
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Readv()
      pkg/sentry/syscalls/linux/sys_read.go:144 +0x28c
  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:278 +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 +0x19c
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:217 +0x157c
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run()
      pkg/sentry/kernel/task_run.go:95 +0x264