Re: 2.4.22-pre3 and reiserfs boot problem

From: Stephan von Krawczynski <skraw@ithnet.com>
To: Carl-Daniel Hailfinger <c-d.hailfinger.kernel.2003@gmx.net>
Cc: marcelo@conectiva.com.br, green@namesys.com,
	linux-kernel@vger.kernel.org
Subject: Re: 2.4.22-pre3 and reiserfs boot problem
Date: Thu, 10 Jul 2003 17:12:31 +0200	[thread overview]
Message-ID: <20030710171231.01df358e.skraw@ithnet.com> (raw)
In-Reply-To: <3F0D7BCC.7070607@gmx.net>

On Thu, 10 Jul 2003 16:44:28 +0200
Carl-Daniel Hailfinger <c-d.hailfinger.kernel.2003@gmx.net> wrote:

> > I have currently nmi_watchdog=1 which works (NMI interrupts show up during
> > normal operation), but there is no backtrace visible or producable during
> > the freeze, sorry.
> 
> How is that possible? If the NMI watchdog works but doesn't fire, the
> lockup should respond to SysRq-T. Could you please try SysRq-T *before*
> the hang just to verify that it would work?

Well, the thing I don't really understand about SysRq-X is that the output is
visible by dmesg-command, but I cannot see anything on the console (single user
tested). This means it may well work in the hang-case, but as I cannot execute
dmesg I will never see it...

Regards,
Stephan