Re: [Xen-devel] Xen hypervisor external denial of service vulnerability?

[Pim van Riezen <pi@xxxxxxxxxxxxx>]

On Feb 8, 2011, at 17:10 , Pim van Riezen wrote:

> 
> On Feb 8, 2011, at 16:53 , Pasi Kärkkäinen wrote:
> 
>> On Tue, Feb 08, 2011 at 01:39:06PM +0100, Pim van Riezen wrote:
>>> Addendum:
>>> 
>>>     The Dells are actually R715.
>>>     The dom0 kernel is actually vmlinuz-2.6.18-194.32.1.el5xen
>>> 
>> 
>> Have you gived dom0 fixed amount of memory, and also increase dom0 vcpu 
>> weights
>> so that dom0 will always get enough cpu time to take care of things? 
> 
> Fixed dom0_mem, yes.
> Weighting, seems not, but just did a testrun with the dom0 weight set to 512. 
> I got 2 task blocks on one node (that seems a new development) and the same 
> plus another raw_safe_halt soft lockup on the other:

Also tried pinning 2 cpus for domain-0. Still soft lockups.

Pi


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