linux-kernel - Re: Q: SEGSEGV && uc

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Message-Id: <20090317.122042.72714328.davem@davemloft.net>
Date:	Tue, 17 Mar 2009 12:20:42 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	torvalds@...ux-foundation.org
Cc:	mega@...es.hu, oleg@...hat.com, davidel@...ilserver.org,
	mingo@...e.hu, roland@...hat.com, akpm@...ux-foundation.org,
	cfriesen@...tel.com, linux-kernel@...r.kernel.org
Subject: Re: Q: SEGSEGV && uc_mcontext->ip

From: Linus Torvalds <torvalds@...ux-foundation.org>
Date: Tue, 17 Mar 2009 08:56:34 -0700 (PDT)

> What you might be able to do instead is to walk signal frames backwards by 
> hand. IOW, accept the fact that sometimes signals end up being nested, but 
> then you could try to find the right frame by just looking at them.

FWIW, GCC's dwarf2 unwind handlers already know how to walk through
Linux signal frames and identify them.
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