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xen-devel
[Xen-devel] Dom0 hang problem
All,
I have been running on a 8-way 32 GB ES7000 system.
I am on the tip of the xen-unstable tree (changeset 11627).
To test xen, I ran 4 DomUs 2 of them were 8-way, with 10 GB memory and 2
others were 4-way with 1 GB of memory. The DomUs come up, run kernbench
and ltp and shutdown. After about 3 hours of running, I tried to do an
xm list and the machine locked up.
I could not ssh into the box, but I could ping it. I could get data from
the serial machine. Leaving the machine untouched for a long time does
not alleviate the problem.
The 8-way DomUs had completed their tests at this point and the 4-way
domUs had finished their kernbench tests and were running LTP.
Has anyone else seen issues like this?
How can I debug this problem?
I have attached the before and after info from the serial machine. run
queues, memory info, VM info etc.
I discovered this problem when I was giving Ryan Harper's NUMA patches a
spin last week.
Further investigation revealed that the issue was *not* with the NUMA
patches, but occurs in the mainline xen-unstable kernel.
Thanks
Raj
Xen Development Team
Unisys Corp.
after.txt
Description: after.txt
before.txt
Description: before.txt
bootup.txt
Description: bootup.txt
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