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[Xen-devel] Kernel oops with 'divide error' in dom0


  • To: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: Kevin Stange <kevin@xxxxxxxxxxxxx>
  • Date: Tue, 19 Feb 2019 10:36:04 -0600
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Hi,

I just saw a lockup yesterday running Xen 4.8.5 + Linux 4.9.127 which
started with a divide error, after which the CPU locked up in dom0 and
networking went down.  I've attached the Linux trace that abrt captured
before it died.  There's also a trace I was able to capture from the
serial console which was being printed every couple minutes after the
system locked up.  Xen was still accessible on the serial console at the
time, but it has since been rebooted, so there's nothing I can
immediately do to further investigate.

The console trace is a partial capture as I was only able to get one
screenful, so the registers are cut off.

A very similar issue happened on the same type of system in December,
but I was unable to capture any traces at that time, so I can't confirm
that they are the same.  I have no reproducing case at the moment.

Any guidance would be appreciated.

-- 
Kevin Stange
Chief Technology Officer
Steadfast | Managed Infrastructure, Datacenter and Cloud Services
800 S Wells, Suite 190 | Chicago, IL 60607
312.602.2689 X203 | Fax: 312.602.2688
kevin@xxxxxxxxxxxxx | www.steadfast.net

Attachment: abrt-log-20190218.txt
Description: Text document

Attachment: console-trace-20190218.txt
Description: Text document

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