linux-kernel - e1000 issue on DQ965GF board (was 24 lost ticks with 2.6.20.10 kernel)

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070503062701.GA22255@zoy.org>
Date:	Wed, 2 May 2007 23:27:02 -0700
From:	Michel Lespinasse <walken@....org>
To:	"Kok, Auke" <auke-jan.h.kok@...el.com>
Cc:	Chuck Ebbert <cebbert@...hat.com>, linux-kernel@...r.kernel.org,
	Dave Jones <davej@...hat.com>, Jeb Cramer <cramerj@...el.com>,
	John Ronciak <john.ronciak@...el.com>,
	Jesse Brandeburg <jesse.brandeburg@...el.com>,
	Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: e1000 issue on DQ965GF board (was 24 lost ticks with 2.6.20.10 kernel)

On Wed, May 02, 2007 at 11:14:52AM -0700, Kok, Auke wrote:
> I just checked and the fix I was referring to earlier didn't make it into 
> 2.6.21-final. You can get 2.6.21-git1 from kernel.org which has the fix. See
> 
> http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.21-git1.log

Good. So I tried that patch (well, actually only the change visible at
http://lkml.org/lkml/2007/3/6/268). I patched it into a 2.6.20.11 kernel,
using the same config file as previously. The good news is that this fixes
my issue: there are no lost ticks anymore, and the link does negotiate a
gigabit connection. This is a great improvement for me :)

I still seem to hit an issue if using the ethtool command, though.
when using 'ethtool -s eth0 autoneg on', the link comes up at gigabit speed,
but a couple seconds later is comes down again, and then up at 100 megabits:

e1000: eth0: e1000_watchdog: NIC Link is Up 1000 Mbps Full Duplex
e1000: eth0: e1000_watchdog: NIC Link is Down
e1000: eth0: e1000_watchdog: NIC Link is Up 100 Mbps Full Duplex
e1000: eth0: e1000_watchdog: 10/100 speed: disabling TSO

The same thing happens if I use ifdown eth0; ifup eth0 too. Once again,
I only observe this on my DQ965GF motherboard, the DG965RY board is fine
(stays at gigabit speed when I issue these commands).

Is this something you could easily reproduce at Intel or would you want me
to look into that issue on my system ?

Thanks,

-- 
Michel "Walken" Lespinasse
"Bill Gates is a monocle and a Persian cat away from being the villain
in a James Bond movie." -- Dennis Miller
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/