linux-kernel - Re: 2.6.33.5 rt23: machine lockup (nfs/autofs related?)

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Message-ID: <1278714680.2349.15.camel@localhost.localdomain>
Date:	Fri, 09 Jul 2010 15:31:20 -0700
From:	john stultz <johnstul@...ibm.com>
To:	Fernando Lopez-Lezcano <nando@...ma.Stanford.EDU>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	LKML <linux-kernel@...r.kernel.org>,
	rt-users <linux-rt-users@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Nick Piggin <npiggin@...e.de>
Subject: Re: 2.6.33.5 rt23: machine lockup (nfs/autofs related?)

On Fri, 2010-07-09 at 15:13 -0700, Fernando Lopez-Lezcano wrote:
> On Fri, 2010-07-09 at 12:54 -0700, john stultz wrote:
> > On Fri, 2010-07-09 at 12:02 -0700, Fernando Lopez-Lezcano wrote:
> > > Ok, I got one! (had to go buy a null modem cable, I thought I had one
> > > but it has disappeared since the last time I did this :-)
> > 
> > Great! Sorry to make you go shopping! But this points out the problem
> > nicely.
> 
> No problem at all, I was sure I had one... anyway, I still need it :-<
> 
> > > Find it below... it keeps spewing stuff every once in a while. Hopefully
> > > this will be enough. No response from the network or the keyboard or
> > > mouse at this point, reset is the only way out. 
> > > 
> > > I can retest if somebody comes up with a patch...
> 
> Sorry, it looks like the patch patched correctly and this is the new
> kernel, but I still get a hang as before. 

Huh. Exact same backtrace? Maybe there's more then one issue with that
function...

thanks for the testing!
-john


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