From: "Daniel P. Berrange" <berrange@redhat.com>
To: Samuel Thibault <samuel.thibault@ens-lyon.org>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH] catch signals
Date: Tue, 5 Aug 2008 18:00:48 +0100 [thread overview]
Message-ID: <20080805170048.GY6570@redhat.com> (raw)
In-Reply-To: <20080805165321.GZ4478@implementation.uk.xensource.com>
On Tue, Aug 05, 2008 at 05:53:21PM +0100, Samuel Thibault wrote:
> Daniel P. Berrange, le Tue 05 Aug 2008 17:35:19 +0100, a écrit :
> > I think rather than trying todo anything in the signal handler,
> > it is safest to just set a flag and have its state checked
> > and acted upon in the main loop.
>
> We can not do that for SIGSEGV/SIGBUS, however.
We shouldn't be trying todo anything for SEGV/BUS. It is basically game
over at that point - you've no chance of orderly shutdown. Only QUIT, INT,
TERM, HUP should be trying todo graceful shutdown, because those don't
imply your process is corrupting its memory/ doing bad stuff.
Daniel
--
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next prev parent reply other threads:[~2008-08-05 17:01 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-05 16:09 [Qemu-devel] [PATCH] catch signals Gerd Hoffmann
2008-08-05 16:29 ` Samuel Thibault
2008-08-06 9:11 ` Gerd Hoffmann
2008-08-05 16:35 ` Daniel P. Berrange
2008-08-05 16:53 ` Samuel Thibault
2008-08-05 17:00 ` Daniel P. Berrange [this message]
2008-08-05 18:39 ` Jamie Lokier
2008-08-06 9:20 ` Gerd Hoffmann
2008-08-06 9:48 ` Daniel P. Berrange
2008-08-11 16:50 ` Ian Jackson
2008-08-11 19:43 ` Gerd Hoffmann
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