Messages in this thread | | | Date | Mon, 22 Aug 2005 10:39:26 +0400 | From | Oleg Nesterov <> | Subject | Re: [PATCH] fix send_sigqueue() vs thread exit race |
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Thomas Gleixner wrote: > > @@ -1427,7 +1434,18 @@ send_group_sigqueue(int sig, struct sigq > int ret = 0; > > BUG_ON(!(q->flags & SIGQUEUE_PREALLOC)); > - read_lock(&tasklist_lock); > +retry: > + if (unlikely(p->flags & PF_EXITING)) > + return -1; > +
I don't think this is correct. p == ->group_leader, it may have been exited and in EXIT_ZOMBIE state. But the thread group (process) is live, we should not stop posix timers.
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