linux-kernel - Re: 2.6.21-rc7-mm2 hangs in boot (netconsole)

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Date:	Tue, 1 May 2007 08:22:58 +0200
From:	Andi Kleen <ak@...e.de>
To:	Randy Dunlap <randy.dunlap@...cle.com>
Cc:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: 2.6.21-rc7-mm2 hangs in boot (netconsole)

On Mon, Apr 30, 2007 at 10:16:24PM -0700, Randy Dunlap wrote:
> On Tue, 1 May 2007 05:43:30 +0200 Andi Kleen wrote:
> 
> > > Andi: unprocessor x86_64 running rc7-mm2 is hanging early in boot at
> > > randomish times (presumably in the timer irq handler) when netconsole and
> > > printk-time are enabled.
> > 
> > A backtrace would be good. Does nmi_watchdog=2 show anything
> > interesting or if not sysrq-t?
> 
> I can't get anything from sysrq or nmi_watchdog.

Hmm, ok when the console locks up those likely don't work.

> 
> > > I was hitting the same thing on i386 uniprocessor, but I thought it got
> > > fixed.
> > 
> > Yes.
> 
> Fixed where?  Merged into mainline or in your firstfloor patches?

None of the sched-clock changes are in mainline yet.

Can you perhaps test latest firstfloor alone (without rest of -mm)?

-Andi
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