Thread (9 messages) flat view 9 messages, 4 authors, 2008-08-22

Re: 2.6.26/tg3 ping roundtrip times > 2000 ms on local network

From: "Michael Chan" <mchan@broadcom.com>
Date: 2008-08-20 18:13:06
Also in: lkml

On Wed, 2008-08-20 at 10:47 -0700, Marc Haber wrote:
On Tue, Aug 19, 2008 at 03:30:25PM -0700, Matt Carlson wrote:
quoted
Can you try the attached patch?  The patch reduces the delay back to
what it should have been.  If this helps, then it means you are being
bitten by the same bug the upstream patch fixed.
It looks like the issue is fixed now. Thanks for your help.

Will this fix be in 2.6.26.3 and/or 2.6.27?
It was just submitted to -stable so it should appear 2.6.26.3 or .4.
And definitely it will be fixed in 2.6.27.
Now I need to understand why the other, nearly[1] identical box didn't
need the patch to function properly.
It depends on whether you have ASF enabled or not and what version of
ASF you have.  ASF is management firmware running inside the NIC.  When
the tg3 driver loads, it will show ASF[1] in dmesg if ASF is enabled.
Greetings
Marc

[1] only difference is that the working box has two e1000 interfaces
on a PCI card in addition to the two tg3 interfaces on board (all four
of them being in use)

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