Re: [Xen-devel] megasas stops I/O when running kernel as dom0 under xen4.1/4.2

[Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>]

On Thu, Aug 11, 2011 at 05:27:25PM +0100, Simon Rowe wrote:
> On Thursday 11 August 2011 14:59:39 Andreas Olsowski wrote:
> 
> > as one of the people using Dell Servers i am aware that the LSI megaraid
> > drivers are quite old in the current 2.6.32 pvops tree,
> > but it seems that, once again, i have run into problems that are more
> > rare than the usual "cant find disk" issues. (Of which i had none, ever)
> > 
> > 
> > The situation:
> > --------------
> > I have 2 dom0 kernels, 2.6.32.44 and 3.0.1 that work fine when booted
> > bare-metal. I can run stress -m 40 -d 4 -i 1 for hours on end without
> > any error occuring.
> > The 2.6.32.44 kernels use version 00.00.05.30 megasas modules.
> 
> I've had reports of something similar with a Dell R710 and MegaRAID SAS 
> controller. We're using version 00.00.05.33 of megaraid_sas on a classic Xen 
> 2.6.32 kernel.

With the same version of hypervisor?

Andreas,

Can you try running without irqbalance daemon?
> 
>       Simon
> 
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