linux-kernel - Panic: NMI Watchdog detected LOCKUP on CPU

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Message-ID: <20081126231213.271070@gmx.net>
Date:	Thu, 27 Nov 2008 00:12:13 +0100
From:	"Carsten Menke" <bootsy52@....net>
To:	linux-kernel@...r.kernel.org
Subject: Panic:  NMI Watchdog detected LOCKUP on CPU

Hi List,

I hope this is not the too wrong place to ask a question about the issue in the subject as the problem arises with a rather old 2.6.15 Kernel of an Ubuntu 6.06 Installation. But as nobody has even looked at the report I filed in the Ubuntu Bug database for 2  months. I try my luck here. I got a HP ML 350 G5 Server running and I occasionly receive kernel panics (vary from 1 time per week up to 2 months). I just want to get any pointer if this may be a hardware issue or a kernel issue, which in turn may have been fixed in a later version. As only Red Hat is supported by HP it will get rather difficult to get someone on service (we have an extended On site Warranty) an replace parts as we're running Ubuntu on the server and 2nd the diagnostic CD (Smart Start) shows that everything is ok (That of course doesn't mean, i trust these tools to much).

One thing I noted is that always the smbd process occurs in the panic log, the second thing is that it seems that it is unrelated to the system load as it happened 1 time during full working hours and another time during the night whe the server was absolutly idle (The server in turn does not do much more than a load of 20% either).

So here is the log I caputred via syslogd from netconsole and the dmesg, please apologize that due to syslog some lines are split across multiple lines, which show actually up as one on the console

Hope someone get me anywhere

Carsten

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