Date: Mon, 6 Feb 2012 16:17:57 -0800
From: Stephen Hemminger <shemminger@vyatta.com>
To: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Nick Bowler <nbowler@elliptictech.com>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: Sudden kernel panic with skge in 3.3-rc2
Message-ID: <20120206161757.6eac9277@nehalam.linuxnetplumber.net>
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On Mon, 6 Feb 2012 19:11:27 -0500
Paul Gortmaker <paul.gortmaker@windriver.com> wrote:

> On Thu, Feb 2, 2012 at 3:45 PM, Stephen Hemminger <shemminger@vyatta.com> wrote:
> 
> [...]
> 
> >
> > Try reverting this commit, it seems problematic
> > commit d0249e44432aa0ffcf710b64449b8eaa3722547e
> > Author: stephen hemminger <shemminger@vyatta.com>
> > Date: ? Thu Jan 19 14:37:18 2012 +0000
> >
> > ? ?skge: check for PCI dma mapping errors
> >
> 
> I'm seeing similar issues, and a revert of the above caused the
> problems to go away.  I'm testing on a baseline of net-next
> as of today (3238a9be4d7a) plus some TIPC patches I was
> trying to test (which are 99.9% unrelated to this, I'm sure).
> 
> Details captured from serial console are below.  100% reproducible.
> 
> I can probably try a test/debug patch for you if need be.
> 
> Paul.

There is a simple bug in the cleanup code reordering. And it is
reproducible here. Working on a better solution.
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