linux-kernel - Re: print_vma_addr possible deadlock (was Re: Jeste jeden bug)

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Message-ID: <Pine.LNX.4.64.0802132039240.30955@jikos.suse.cz>
Date:	Wed, 13 Feb 2008 20:40:55 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Ingo Molnar <mingo@...e.hu>
cc:	Andi Kleen <ak@...e.de>, Thomas Gleixner <tglx@...utronix.de>,
	Zdenek Kabelac <zdenek.kabelac@...il.com>,
	linux-kernel@...r.kernel.org
Subject: Re: print_vma_addr possible deadlock (was Re: Jeste jeden bug)

On Wed, 13 Feb 2008, Ingo Molnar wrote:

> The longer-term fix will be to not run int3 exception handlers in a 
> non-preemptible context (like 32-bit does) - but that will need more 
> testing.

Yup, exactly.

> Jiri Kosina reported the following deadlock scenario with
> show_unhandled_signals enabled:

Actually the kernel error message was reported to me by Zdenek. Zdenek, 
could you please try the fix?

Thanks,

-- 
Jiri Kosina
SUSE Labs
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