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Re: [Xen-devel] Network dies and kernel errors

To: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
Subject: Re: [Xen-devel] Network dies and kernel errors
From: John McMonagle <johnm@xxxxxxxxxxx>
Date: Tue, 2 Aug 2011 13:07:47 -0500
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On Tuesday, August 02, 2011 11:17:36 am Konrad Rzeszutek Wilk wrote:
> On Sun, Jul 31, 2011 at 06:21:47PM -0500, John McMonagle wrote:
> > Konrad
> > 
> > I ran as you requested and after 2 days it's still up.
> 
> Good!
> 
> > Attached are xen.dmesg and dom0.dmesg  all the command line parameters
> > are in them.
> > 
> > At this point I'd be happy if was on line with a reasonably efficient
> > stable configuration.
> 
> So it looks like from your runs (before you had irqbalance):
> 
> (XEN)  MSI    31 vec=ad  fixed  edge   assert phys    cpu dest=00000023
> mask=1/0/0 (XEN)  MSI    31 vec=ad  fixed  edge   assert phys    cpu
> dest=00000023 mask=1/0/0 (XEN)  MSI    31 vec=ad  fixed  edge   assert
> phys    cpu dest=00000023 mask=1/0/0 (XEN)  MSI    31 vec=ad  fixed  edge 
>  assert phys    cpu dest=00000023 mask=1/0/0 (XEN)    IRQ:  31
> affinity:00000000,00000000,00000000,00004000 vec:b5 type=PCI-MSI        
> status=00000010 in-flight=0 domain-list=0:273(----), (XEN)  MSI    31
> vec=39  fixed  edge   assert phys    cpu dest=00000020 mask=1/0/0 (XEN)   
> IRQ:  31 affinity:00000000,00000000,00000000,00000100 vec:39 type=PCI-MSI 
>        status=00000050 in-flight=0 domain-list=0:273(----),
> 
> The affinity (and the corresponding vector) moves from one CPU to another
> and then dom0 somehow does not get it. Do you have another of these
> boxes available remotly to debug this further?

Konrad

Just one box but I'm willing to try more things.
A shame this is otherwise a really nice box for the price.
I sent Supermicro another email with updated info.
I'm not holding my breath :-(
They did fix the ipmi firmware for me so I guess I can hope for a fix.

In my last test shouldn't dom0_vcpus=2 have been dom0_max_vcpus=2?
Dom0 still has 16 cpus.

I'd prefer not pining dom0 but stability is more important :-)

Thanks for all the help so far.

John

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