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RE: [Xen-devel] [PATCH] Add VMDq support to ixgbe

To: "Williams, Mitch A" <mitch.a.williams@xxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-devel] [PATCH] Add VMDq support to ixgbe
From: "Santos, Jose Renato G" <joserenato.santos@xxxxxx>
Date: Sat, 7 Feb 2009 00:42:30 +0000
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Thread-topic: [Xen-devel] [PATCH] Add VMDq support to ixgbe
 

> -----Original Message-----
> From: Williams, Mitch A [mailto:mitch.a.williams@xxxxxxxxx] 
> Sent: Friday, February 06, 2009 2:30 PM
> To: Santos, Jose Renato G; xen-devel@xxxxxxxxxxxxxxxxxxx
> Cc: steven.smith@xxxxxxxxxxxxx
> Subject: RE: [Xen-devel] [PATCH] Add VMDq support to ixgbe
> 
> >
> >  Here is the kenel panic output
> >  I have also attached the output of "dmesg" and "xm dmesg" 
> >that is executed just after the system boots
> >  Could you please send me the same output for your system so I can 
> >take a look and see if I can spot anything?
> >
> 
> I think I see what's going on -- it's definitely a logic bug. 
>  I've reproduced the crash here, and I'll try to get a fix out ASAP.
> 
> Looks like when I added vmq, I broke RSS, which is the 
> default configuration.

  Thanks Mitch. I am not sure if you found where is the bug or if you are still 
trying to debug the code.
  In a previous email, I have included a previous version of the code that 
works. That version is based on your original patch for an ealier version of 
the ixbge driver plus some fixes we did at HP Labs. We have been using that 
version without problems. If you compare that with your current code you should 
be able to locate the problem in the current code.
Thanks
Renato

> 
> Make sure you have "options ixgbe VMDQ=8" in 
> /etc/modprobe.conf, then you should be OK.
> 
> -Mitch
> 
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