From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: trond.myklebust@fys.uio.no, tglx@linutronix.de, mingo@redhat.com,
hpa@zytor.com, linux-kernel@vger.kernel.org
Subject: Re: Linux 2.6.24-rc5 x86 architecture no longer Oopses...
Date: Thu, 20 Dec 2007 16:02:03 -0800 [thread overview]
Message-ID: <20071220160203.f940f088.akpm@linux-foundation.org> (raw)
In-Reply-To: <20071220234759.GA29776@elte.hu>
On Fri, 21 Dec 2007 00:47:59 +0100
Ingo Molnar <mingo@elte.hu> wrote:
> it needs to be found out why the preempt_count suddenly went to zero. Is
> task struct corruption out of question?
Strictly we shouldn't care - we _know_ we've already hit a kernel bug and
who knows, perhaps that buggy code did an unbalanced preempt_disable(). So
make the oops code more robust.
otoh, we don't want to be hiding a bug. What piece of code guarantees that
we ender the oops code with preemption disabled?
next prev parent reply other threads:[~2007-12-21 0:05 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-20 22:40 Linux 2.6.24-rc5 x86 architecture no longer Oopses Trond Myklebust
2007-12-20 22:54 ` Andrew Morton
2007-12-20 22:56 ` Andrew Morton
2007-12-20 23:06 ` Trond Myklebust
2007-12-21 0:55 ` Rafael J. Wysocki
2007-12-21 10:19 ` Ingo Molnar
2007-12-20 23:04 ` Trond Myklebust
2007-12-20 23:47 ` Ingo Molnar
2007-12-21 0:02 ` Andrew Morton [this message]
2007-12-21 0:05 ` Ingo Molnar
2007-12-21 0:19 ` Andrew Morton
2007-12-21 0:30 ` Ingo Molnar
2007-12-21 0:40 ` Andrew Morton
2007-12-21 0:44 ` Ingo Molnar
2007-12-21 10:27 ` Ingo Molnar
2007-12-21 10:42 ` Andrew Morton
2007-12-21 11:12 ` Ingo Molnar
2007-12-21 11:34 ` Andrew Morton
2007-12-21 12:31 ` Ingo Molnar
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