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authorRoland McGrath <roland@gnu.org>2004-11-17 21:26:59 +0000
committerRoland McGrath <roland@gnu.org>2004-11-17 21:26:59 +0000
commit0086214c64c761de977e51076522593e3a4e411a (patch)
tree0ccf62a9f14857aad119f9334ceb65b776ed91c9 /nptl
parent579e2d6ef1e9d77892e84ba1ac90eda86782a9ec (diff)
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2004-11-17 Roland McGrath <roland@redhat.com>
	* sysdeps/unix/sysv/linux/timer_routines.c (__start_helper_thread):
	Make sure SIGCANCEL is blocked as well.
Diffstat (limited to 'nptl')
-rw-r--r--nptl/sysdeps/unix/sysv/linux/timer_routines.c5
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);