linux-kernel - Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during boot or logon

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Message-Id: <1236587118.8389.20.camel@laptop>
Date:	Mon, 09 Mar 2009 09:25:18 +0100
From:	Peter Zijlstra <a.p.zijlstra@...llo.nl>
To:	Frans Pop <elendil@...net.nl>
Cc:	linux-s390@...r.kernel.org,
	Hendrik Brueckner <brueckner@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [BUG,2.6.29-rc7,s390] System goes into endless loop during
 boot or logon

On Mon, 2009-03-09 at 02:53 +0100, Frans Pop wrote:
> Follow-up to an issue reported on the linux-s390 list, seen in the 
> Hercules S/390 emulator.
> 
> On Sunday 08 March 2009, Frans Pop wrote:
> > Well, not quite. It does boot successfully and I do get a login prompt.
> > I can also login on the console or connect with SSH, but in both cases
> > the system again gets into some loop before I actually get a shell
> > prompt.
> 
> During the bisection series the system would sometimes enter the loop 
> during the boot procedure, before I tried to logon. After it enters the 
> loop one processor just goes racing at 100%.

Where? Do you have NMI watchdog output, or even sysrq-t?

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