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From: Plamen Petrov <pvp-lsts@fs.uni-ruse.bg>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	netdev@vger.kernel.org, bugzilla-daemon@bugzilla.kernel.org,
	bugme-daemon@bugzilla.kernel.org
Subject: Re: [Bugme-new] [Bug 16626] New: Machine hangs with EIP at skb_copy_and_csum_dev
Date: Fri, 20 Aug 2010 12:19:06 +0300	[thread overview]
Message-ID: <4C6E488A.4010100@fs.uni-ruse.bg> (raw)
In-Reply-To: <4C6E3D58.5080303@fs.uni-ruse.bg>

На 20.8.2010 г. 11:31, Plamen Petrov написа:
...
> The next thing I will be trying is disabling
> GRO for the tg3 network card in my network
> startup scripts via my shiny new ethtool... ;)

So, for nearly half an hour now running 2.6.36-rc1-FS-00127-g763008c:

>
root@fs:~# w; uname -a
>  12:09:48 up 26 min,  1 user,  load average: 2.43, 1.93, 1.26
> USER     TTY      FROM              LOGIN@   IDLE   JCPU   PCPU WHAT
> root     pts/0    192.168.10.159   12:09    0.00s  0.02s  0.00s w
> Linux fs 2.6.36-rc1-FS-00127-g763008c #1 SMP Thu Aug 19 07:10:57 UTC 2010 i686 Intel(R) Pentium(R) D CPU 3.00GHz GenuineIntel GNU/Linux

And that's with the usual load, which can be found here:
http://pvp.now.im/s/drraw.cgi?Mode=view;Dashboard=1173713287.13177

The only addition I made was running
	ethtool -K ethX gro off
for each network card.

Which means that I have a Broadcom Tygon 3 (tg3) which doesn't
like "generic-receive-offload" at all!

With "generic-receive-offload" off, I will stay on
2.6.36-rc1-FS-00127-g763008c for as long as I can, just to
confirm that in fact the "default on" setting for gro in the
tg3 driver is the culprit for my troubles...

Where to next?

  reply	other threads:[~2010-08-20  9:19 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <bug-16626-10286@https.bugzilla.kernel.org/>
2010-08-19 22:21 ` [Bugme-new] [Bug 16626] New: Machine hangs with EIP at skb_copy_and_csum_dev Andrew Morton
2010-08-20  5:03   ` Plamen Petrov
2010-08-20  5:11     ` Andrew Morton
2010-08-20  6:12       ` Plamen Petrov
2010-08-20  6:20         ` Andrew Morton
2010-08-20  6:26           ` Plamen Petrov
2010-08-20  6:34             ` Eric Dumazet
2010-08-20  6:57               ` Plamen Petrov
2010-08-20  7:38               ` Plamen Petrov
2010-08-20  8:31               ` Plamen Petrov
2010-08-20  9:19                 ` Plamen Petrov [this message]
2010-08-20 10:26                   ` Eric Dumazet
2010-08-20 10:53                     ` Plamen Petrov
2010-08-20 19:38                       ` Jarek Poplawski
2010-08-21  7:47                         ` Jarek Poplawski
2010-08-21  7:50                           ` Eric Dumazet
2010-08-21  8:07                             ` Jarek Poplawski
2010-08-23 11:47                               ` Plamen Petrov
2010-08-23 12:35                                 ` Eric Dumazet
2010-08-23 12:47                                 ` Jarek Poplawski
2010-08-23 13:00                                   ` Eric Dumazet
2010-08-23 13:10                                     ` Jarek Poplawski
2010-08-23 13:43                                       ` Plamen Petrov
2010-08-23 14:05                                         ` Plamen Petrov
2010-08-23 14:14                                           ` Jarek Poplawski
2010-08-24  4:51                                             ` Plamen Petrov
2010-08-24  5:01                                               ` Eric Dumazet
2010-08-24  8:43                                                 ` Plamen Petrov
2010-08-24 13:27                                                   ` Plamen Petrov
2010-08-24 15:08                                                     ` Eric Dumazet
2010-08-24 17:25                                                       ` Plamen Petrov
2010-08-24 18:22                                                         ` Jarek Poplawski
2010-08-24 19:19                                                         ` Eric Dumazet
2010-08-25  7:05                                                           ` Plamen Petrov
2010-08-29  7:48                                                             ` [PATCH] net: reset ip_summed in skb_tunnel_rx() Eric Dumazet
2010-08-29 15:35                                                               ` Jesse Gross
2010-08-27  8:44                                                       ` [Bugme-new] [Bug 16626] New: Machine hangs with EIP at skb_copy_and_csum_dev Plamen Petrov
2010-08-24  5:19                                               ` Plamen Petrov
2010-08-24  6:18                                                 ` Jarek Poplawski

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