linux-kernel - Re: VFs go missing with latest kernel

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Message-ID: <4F297D25.7090902@cisco.com>
Date:	Wed, 01 Feb 2012 10:57:57 -0700
From:	David Ahern <daahern@...co.com>
To:	"Rose, Gregory V" <gregory.v.rose@...el.com>
CC:	"'LKML'" <linux-kernel@...r.kernel.org>
Subject: Re: VFs go missing with latest kernel

On 02/01/2012 10:47 AM, Rose, Gregory V wrote:
> I found this in the log file you sent me.  I had missed it yesterday.
> 
> [   15.835223] igb 0000:07:00.0: 7 pre-allocated VFs found - override max_vfs setting of 7
> [   15.835393] igb 0000:07:00.0: 7 VFs allocated
> 
> I think that must be a bug in the code that searches for VFs already allocated and is the source of your problem.  I'll keep you updated on what I find but it has to be a bug in the VF device lookups.

Confused. What is pre-allocating the VFs during boot? Looking at my
rc-scripts I am only set MAC addresses at boot. No VMs have been started
yet. This setup has worked fine with Fedora 14 and 3.0 kernels; it's
really the move to 3.3-rc that I hit the problem.

David
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