Messages in this thread | | | Subject | RE: e1000 issue on DQ965GF board (was 24 lost ticks with 2.6.20.10 kernel) | Date | Thu, 3 May 2007 08:56:02 -0700 | From | "Allan, Bruce W" <> |
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Yes, this was discovered through code inspection last week and I've already made a fix (as I mentioned to Auke off-thread). It should be submitted upstream shortly.
-----Original Message----- From: Kok, Auke [mailto:auke-jan.h.kok@intel.com] Sent: Thursday, May 03, 2007 8:37 AM To: Michel Lespinasse Cc: Kok, Auke-jan H; Chuck Ebbert; linux-kernel@vger.kernel.org; Dave Jones; cramerj; Ronciak, John; Brandeburg, Jesse; Kirsher, Jeffrey T; Allan, Bruce W Subject: Re: e1000 issue on DQ965GF board (was 24 lost ticks with 2.6.20.10 kernel)
[Adding Bruce to the Cc, reply below]
Michel Lespinasse wrote: > 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 ?
I think we have confirmed this issue and I'll work with Bruce on seeing where the fix went. I might give you another patch to try.
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