linux-kernel - Re: BUG-lockdep and freeze (was: Arrr! Linux 2.6.18) II

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Message-Id: <200610010024.53854.ak@suse.de>
Date:	Sun, 1 Oct 2006 00:24:53 +0200
From:	Andi Kleen <ak@...e.de>
To:	"Eric Rannaud" <eric.rannaud@...il.com>
Cc:	"Linus Torvalds" <torvalds@...l.org>,
	"Ingo Molnar" <mingo@...e.hu>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	"Andrew Morton" <akpm@...l.org>, nagar@...son.ibm.com,
	"Chandra Seetharaman" <sekharan@...ibm.com>,
	"Jan Beulich" <jbeulich@...ell.com>
Subject: Re: BUG-lockdep and freeze (was: Arrr! Linux 2.6.18) II

On Sunday 01 October 2006 00:19, Eric Rannaud wrote:
> On 10/1/06, Andi Kleen <ak@...e.de> wrote:
> > I double checked this now. This case Eric ran into should be already
> > fixed by a patch from Jan that went in before 2.6.18 even.
> >
> > He just ran with an old kernel (2.6.18-rc3) that didn't have
> > that particular fix.
> 
> Hmm, not sure I'm following you, but I did try with the released
> v2.6.18 (fourth stacktrace in my first email in this thread). The
> 2.6.13-rc3 (d94a041519f3ab1ac023bf917619cd8c4a7d3c01) version was
> tested only as the result of git-bisect, and is the first kernel that
> crashed in this way. But v2.6.18 crashed in a similar way as well.
> Are you saying v2.6.18 should contain a fix preventing it from crashing?

2.6.18 should have showed the backtrace from lockdep, but not the oops at 
the end of the backtrace in show_trace()

-Andi
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