Re: 'nfe' stalls (analysis and partial solution)
- From: Luigi Rizzo <rizzo@xxxxxxxxxxxx>
- Date: Sat, 26 Apr 2008 11:05:12 +0200
On Fri, Apr 25, 2008 at 06:00:39PM +0200, Luigi Rizzo wrote:
just for the record and the mail archives - i have been experiencing
a lot of unrecovered stalls of the network card with the 'nfe'
driver under heavy load (this was on 7.0-i386 and 7.0-amd64, but
it is hardware related so it cross-platform).
After 2-3 days of investigation, and with the help of
Pyun YongHyeon (yongari) i finally managed to pin down the
problem and start working on a solution.
I would be grateful if others can report of similar problems
with the 'nfe' driver so we can see if the patch we can come
up with also fix their problem.
followup:
a patch to address the problem is available at
http://info.iet.unipi.it/~luigi/FreeBSD/
(current version is
http://info.iet.unipi.it/~luigi/FreeBSD/nfe-20080426.1044.diff
but it might change with time as we get more details or info
on how to deal with this problem).
cheers
luigi
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- From: Luigi Rizzo
- 'nfe' stalls (analysis and partial solution)
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