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hurd: Fix pthread_kill on exiting/ted thread

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We have to drop the kernel_thread port from the thread structure, to
avoid pthread_kill's call to _hurd_thread_sigstate trying to reference
it and fail.
This commit is contained in:
Samuel Thibault 2022-01-15 14:55:23 +01:00
parent dfb204d87f
commit 2c040d0b90
2 changed files with 7 additions and 0 deletions
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4
sysdeps/hurd/htl/pt-kill.c
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@ -35,6 +35,10 @@ __pthread_kill (pthread_t thread, int sig)
if (pthread == NULL) if (pthread == NULL)
return ESRCH; return ESRCH;
if (pthread->kernel_thread == MACH_PORT_DEAD)
/* The pthread ID is still valid but we cannot send a signal any more. */
return 0;
ss = _hurd_thread_sigstate (pthread->kernel_thread); ss = _hurd_thread_sigstate (pthread->kernel_thread);
assert (ss); assert (ss);

3
sysdeps/mach/htl/pt-thread-terminate.c
View File

@ -68,6 +68,9 @@ __pthread_thread_terminate (struct __pthread *thread)
/* The wake up port is now no longer needed. */ /* The wake up port is now no longer needed. */
__mach_port_destroy (__mach_task_self (), wakeup_port); __mach_port_destroy (__mach_task_self (), wakeup_port);
/* The kernel thread won't be there any more. */
thread->kernel_thread = MACH_PORT_DEAD;
/* Terminate and release all that's left. */ /* Terminate and release all that's left. */
err = __thread_terminate_release (kernel_thread, mach_task_self (), err = __thread_terminate_release (kernel_thread, mach_task_self (),
kernel_thread, reply_port, kernel_thread, reply_port,