Re: Sudden kernel panic with skge in 3.3-rc2

On Mon, 6 Feb 2012 19:11:27 -0500
Paul Gortmaker [off-list ref] wrote:

On Thu, Feb 2, 2012 at 3:45 PM, Stephen Hemminger [off-list ref] wrote:

[...]

quoted

Try reverting this commit, it seems problematic
commit d0249e44432aa0ffcf710b64449b8eaa3722547e
Author: stephen hemminger [off-list ref]
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.