linux-kernel - Re: option driver freezing entire system

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Message-ID: <alpine.LRH.2.00.1001181656500.15694@twin.jikos.cz>
Date:	Mon, 18 Jan 2010 16:57:25 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Kasper Sandberg <lkml@...anurb.dk>
Cc:	Oliver Neukum <oliver@...kum.org>, smurf@...rf.noris.de,
	LKML Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: option driver freezing entire system

On Fri, 15 Jan 2010, Kasper Sandberg wrote:

> > Please recompile your kernel with lockdep. This should improve
> > debugging.
> 
> It is a debian unstable .32 kernel i run now, and grepping for lockdep
> reveals:
> CONFIG_LOCKDEP_SUPPORT=y
> only, is there anything more i should have? (never used lockdep before)

CONFIG_PROVE_LOCKING could be helpful here. (be aware of the fact that 
this will make your system noticeably slower).

-- 
Jiri Kosina
SUSE Labs, Novell Inc.

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