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Re: movidis x16 hard lockup using 2.6.33

To: Peter 'p2' De Schrijver <>
Subject: Re: movidis x16 hard lockup using 2.6.33
From: David Daney <>
Date: Fri, 26 Mar 2010 11:57:41 -0700
In-reply-to: <20100326184132.GU2437@apfelkorn>
Original-recipient: rfc822;
References: <20100326184132.GU2437@apfelkorn>
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On 03/26/2010 11:41 AM, Peter 'p2' De Schrijver wrote:

Thanks to Jan Rovins and David Daney we linux 2.6.33 working fine with 1 
patch for the ethernet NICs. We are using this machine as a buildd. 
we found out that building gcc 4.5 using all available 16 cores causes the 
to lock up after about 6 hours of building. There is no output on the serial
console indicating a kernel panic or some malfunction. The machine is hosted in
some data center so physical access is difficult.

Any insight welcome !


What is the output of:

cat /proc/cpuinfo | grep 'system type'

Also you could try running with the attached patch. It is not the best watchdog, but it will print the register state for each core when things get stuck. Occasionally that is enough to see where the problem is.

David Daney

Attachment: 0922-cavium-octeon-watchdog.patch
Description: Text document

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