Date: Sat, 22 Mar 2008 12:17:29 +0100
From: Ingo Molnar <mingo@elte.hu>
To: Roland McGrath <roland@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
       Andrew Morton <akpm@linux-foundation.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] x86 handle_vm86_trap cleanup
Message-ID: <20080322111728.GD13264@elte.hu>
References: <20080317092108.EC6C626F995@magilla.localdomain> <20080321103946.GO20420@elte.hu> <20080322035357.4B43326F992@magilla.localdomain>
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* Roland McGrath <roland@redhat.com> wrote:

> > for the record, this also changes semantics, because previously we'd 
> > permanently unblock SIGTRAP (most certainly as a hack, to be able to 
> > do the send_sig()), while now we use force_sig() which just ignores 
> > the blocked mask. (and i agree with your fix of course)
> 
> That's not so.  force_sig_info (called by force_sig) removes the 
> signal from the blocked set too.  That is the only way to get the 
> signal ever to be dequeued.

ah, indeed, i missed that :)

	Ingo
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