From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Sat, 04 Oct 2008 17:11:50 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-core] gdb lockup on multi-threaded process exit
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To: Jan Kiszka <jan.kiszka@domain.hid>
Cc: xenomai-core <xenomai@xenomai.org>

Jan Kiszka wrote:
> +static int sigkill_pending(struct task_struct *tsk)
> +{
> +	return ((sigismember(&tsk->pending.signal, SIGKILL) ||
> +		 sigismember(&tsk->signal->shared_pending.signal, SIGKILL)) &&
> +		!unlikely(sigismember(&tsk->blocked, SIGKILL)));
> +}
> +

Posix says SIGKILL can not be blocked.

-- 
					    Gilles.