linux-kernel - Re: [patch] log fatal signals like SIGSEGV

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Message-ID: <Pine.LNX.4.64.0809230150290.27884@twin.jikos.cz>
Date:	Tue, 23 Sep 2008 01:52:10 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Thomas Jarosch <thomas.jarosch@...ra2net.com>
cc:	linux-kernel@...r.kernel.org,
	Marcin Slusarz <marcin.slusarz@...il.com>
Subject: Re: [patch] log fatal signals like SIGSEGV

On Sat, 20 Sep 2008, Thomas Jarosch wrote:

> ------------------------------------------------------
> From: Thomas Jarosch <thomas.jarosch@...ra2net.com>
> 
> Log signals like SIGSEGV, SIGILL, SIGBUS or SIGFPE to aid tracing
> of obscure problems. Also logs the sender of the signal.
> 
> The log message looks like this:
> "kernel: signal 9 sent to freezed[2634] uid:100,
>  parent init[1] uid:0 by bash[3168] uid:0, parent sshd[3164] uid:0"

BTW be aware that for example x86 arch-specific code does this on its own, 
and therefore with your patch, the information will be duplicated. See 
page fault handler for x86.

-- 
Jiri Kosina
SUSE Labs

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