[Xen-devel] xm sched-credit2 - changing weight of dom0 freezes machine

[John Weekes <lists.xen@xxxxxxxxxxxxxxxxxx>]

In testing credit2, I have observed that changing the weight of dom0 
freezes a machine on RELEASE-4.1.0. Executing this command immediately 
causes a freeze, for instance:
xm sched-credit2 -d 0 -w 256

This is with the latest stable-2.6.32 (2.6.32.35-gdf3a556). I haven't 
tested with credit2 previously, so I don't know how long this problem 
has existed.
I also saw a different freeze event after starting up 20 or so domains 
on one machine. There were no messages in the xend.log or 
/var/log/messages after the freeze -- the machine just stopped 
responding, as it does when trying to change the dom0 weight. How can I 
effectively debug this if I see it happen again?
-John

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