From: Gerd Hoffmann <kraxel@redhat.com>
To: "M. Warner Losh" <imp@bsdimp.com>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] Handle terminating signals.
Date: Tue, 12 Aug 2008 21:42:07 +0200 [thread overview]
Message-ID: <48A1E78F.8000808@redhat.com> (raw)
In-Reply-To: <20080812.132906.-399282484.imp@bsdimp.com>
M. Warner Losh wrote:
> In message: <48A1D6A3.4050406@redhat.com>
> Gerd Hoffmann <kraxel@redhat.com> writes:
> : > No, because the program should not attempt to catch SEGV either.
> :
> : Why not? Can you change your attitude to say "no" without giving
> : reasons please?
>
> The only portable thing one can do when catching SEGV is terminate the
> program. Otherwise, when the signal handler returns, SEGV happens
> again...
Returning from the signal handler isn't going to work, sure. The only
thing I want do is cleaning up before exiting.
Most apps never ever have to care about that. Sometimes there are good
reasons to attempt a cleanup even for a SEGV though. The X-Server for
example attempts to put the gfx card into a sane state then.
cheers,
Gerd
--
http://kraxel.fedorapeople.org/xenner/
next prev parent reply other threads:[~2008-08-12 19:42 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-06 11:48 [Qemu-devel] [PATCH] Handle terminating signals Gerd Hoffmann
2008-08-11 16:52 ` Ian Jackson
2008-08-11 19:46 ` Gerd Hoffmann
2008-08-12 10:05 ` Ian Jackson
2008-08-12 11:46 ` Stefano Stabellini
2008-08-12 18:29 ` Gerd Hoffmann
2008-08-12 19:29 ` M. Warner Losh
2008-08-12 19:42 ` Gerd Hoffmann [this message]
2008-08-12 19:49 ` Anthony Liguori
2008-08-13 8:27 ` Daniel P. Berrange
2008-08-13 13:29 ` Ian Jackson
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