[Xen-bugs] [Bug 1198] Memory limit + DRBD

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http://bugzilla.xensource.com/bugzilla/show_bug.cgi?id=1198


stephen.spector@xxxxxxxxxx changed:

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                 CC|                            |stephen.spector@xxxxxxxxxx




------- Comment #1 from stephen.spector@xxxxxxxxxx  2008-04-01 11:00 -------
(In reply to comment #0)
> Found that if I limit the memory for the Domain0, and use drbd on the
> Hypervisor, Drbd process seems to see all physical memory, and is able to
> allocate more memory than limited to the Dom0.
> 
> Result is a kernel panic, with message "Out of Memory" from drbd module.
> This appears in XEN 3.1, no problem with previous versions. It doesn't depend
> on DRBD Version (0.7.X, 0.8.X).
> 
> The temporary solution is to disable the memory limitation, but then, Domain0
> consumes too much memory so I am not able to start new VM after some days...
> 
> Environment is : 
>   Xen 3.1
>   Kernel 2.6.18
>   Processor : Xeon with VT activated
>   Memory : 16GB
> 

Thanks for the bug report. I will add it to the Friday bug list that gets sent
to xen-devel as well as post on the Wiki. 

Stephen Spector


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