linux-kernel - Re: option driver freezing entire system

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Message-Id: <1263580615.27788.134.camel@localhost>
Date:	Fri, 15 Jan 2010 19:36:55 +0100
From:	Kasper Sandberg <lkml@...anurb.dk>
To:	Oliver Neukum <oliver@...kum.org>
Cc:	smurf@...rf.noris.de,
	LKML Mailinglist <linux-kernel@...r.kernel.org>
Subject: Re: option driver freezing entire system

On Fri, 2010-01-15 at 18:55 +0100, Oliver Neukum wrote:
> Am Freitag, 15. Januar 2010 18:38:36 schrieb Kasper Sandberg:
> > Hello..
> > 
> > Im having some issues with some huawei e1752 modems, the computer
> > sometimes completely freezes, and i suspect its due to the option
> > driver, as it doesnt happen if i dont modeswitch them to appear as
> > option modem.
> > 
> > Do you have any idea what might cause this? i looked all over the system
> > logs and theres nothing to help at all, but i have seen this spanning
> > from .26 to .32, on multiple computers, and i just dont know what to do
> > to fix it.
> 
> 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)

> 
> 	Regards
> 			Oliver

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