Thread (57 messages) 57 messages, 10 authors, 2010-01-16

Re: [Bug #14925] sky2 panic under load

From: Jarek Poplawski <hidden>
Date: 2010-01-11 21:48:03

On Mon, Jan 11, 2010 at 02:02:40PM -0700, Berck E. Nash wrote:
Jarek Poplawski wrote:
quoted
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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