diff options
| -rw-r--r-- | nptl/sysdeps/unix/sysv/linux/timer_routines.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/nptl/sysdeps/unix/sysv/linux/timer_routines.c b/nptl/sysdeps/unix/sysv/linux/timer_routines.c index ae5f1f7b54..23c800f98e 100644 --- a/nptl/sysdeps/unix/sysv/linux/timer_routines.c +++ b/nptl/sysdeps/unix/sysv/linux/timer_routines.c @@ -122,10 +122,13 @@ __start_helper_thread (void) (void) pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN); /* Block all signals in the helper thread. To do this thoroughly we - temporarily have to block all signals here. */ + temporarily have to block all signals here. The helper can lose + wakeups if SIGCANCEL is not blocked throughout, but sigfillset omits + it. So, we add it back explicitly here. */ sigset_t ss; sigset_t oss; sigfillset (&ss); + __sigaddset (&ss, SIGCANCEL); INTERNAL_SYSCALL_DECL (err); INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, &ss, &oss, _NSIG / 8); |