netdev - Re: [Bug #14925] sky2 panic under load

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Date:	Mon, 11 Jan 2010 22:47:58 +0100
From:	Jarek Poplawski <jarkao2@...il.com>
To:	"Berck E. Nash" <flyboy@...il.com>
Cc:	"Rafael J. Wysocki" <rjw@...k.pl>, netdev@...r.kernel.org
Subject: Re: [Bug #14925] sky2 panic under load

On Mon, Jan 11, 2010 at 02:02:40PM -0700, Berck E. Nash wrote:
> Jarek Poplawski wrote:
> > 2) someone with exactly this one problem (i.e. Berck ;-) might be
> >    mislead "no oops" is enough, while their linux might be still worse
> >    than before. (So I intended Berck to re-consider or even re-check
> >    this problem wrt. 2.6.31, and maybe even reporting another
> >    regression.)
> 
> Well, the problem with this bug is how hard it is for me to reproduce.
> I'm willing to admit that just because I never got it before 2.6.32
> isn't proof that it wasn't there in 2.6.31.  But it's a regression
> somewhere along the line, since I've been using this hardware for over 3
> years now.  There were lots of bugs in the sky2 driver years ago, but
> for the last 2+ years or so, I haven't had any trouble at all until now.
> 
> The bug only shows up for me with bittorrent traffic.  I also use the
> same adapter to transfer backups over the network from several
> computers, and that doesn't trigger it...
> 
> I used 2.6.31 for however long it was the current stable, and I never
> got a crash with it.  After I got several crashes in 2.6.32, I reverted
> to 2.6.31 until Jarek sent this patch that seems to have fixed it.  I've
> never gotten it to crash in 2.6.31, so I'm pretty sure it's a 2.6.32
> regression, but I can't prove it.
> 
> I would love to do more testing, but since I can't reproduce the bug at
> will, I'm not really sure what to offer?

I mainly thought about looking at the logs during such bittorrent to
compare if there is any visible change in "sky2 eth0: disabling
interface"/"sky2 eth0: enabling interface" etc. frequency between
2.6.31 and 2.6.32.

Jarek P.
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