From: "Ray Lee" <ray-lk@madrabbit.org>
To: "Lee Howard" <faxguy@howardsilvan.com>
Cc: "Zan Lynx" <zlynx@acm.org>, linux-kernel@vger.kernel.org
Subject: Re: troubleshooting/debugging hard locks
Date: Tue, 20 May 2008 14:19:03 -0700 [thread overview]
Message-ID: <2c0942db0805201419q2b4c3771m5bc54a9dc243e9e6@mail.gmail.com> (raw)
In-Reply-To: <483338DE.8090904@howardsilvan.com>
On Tue, May 20, 2008 at 1:47 PM, Lee Howard <faxguy@howardsilvan.com> wrote:
> After further troubleshooting it turns out that the message above was a bit
> of a red herring. I moved the PCIe modem card from one PCIe slot to another
> so that it would be on a different IRQ (one that wasn't shared with the
> network, ATA, and USB). The message above does not occur now, however, the
> hard lock is back... and this time with no kernel messages at all.
>
> So, I'm back to square one again... I've got:
>
> nmi_watchdog=1 idle=poll nohz=off
>
> ... and still I get the hard lockup and no kernel messages. How do I
> troubleshoot/debug this? How do I know where to look?
The only thing I can think of is to recompile the latest mainline
kernel with all debugging options enabled in the .config. and then try
to reproduce with that.
prev parent reply other threads:[~2008-05-20 21:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-14 19:27 Lee Howard
2008-05-14 22:43 ` Ray Lee
2008-05-14 23:42 ` Zan Lynx
2008-05-15 3:43 ` Lee Howard
2008-05-20 20:47 ` Lee Howard
2008-05-20 21:19 ` Ray Lee [this message]
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