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From: Mikael Bouillot <xaajimri@corbac.com>
To: linux-kernel@vger.kernel.org
Cc: Carl-Daniel Hailfinger <c-d.hailfinger.kernel.2004@gmx.net>
Subject: Re: Forcedeth driver bug
Date: Wed, 23 Jun 2004 16:14:47 +0000	[thread overview]
Message-ID: <20040623161447.GB11348@mail.nute.net> (raw)
In-Reply-To: <40D9A857.5040901@gmx.net>

> Are you sure both come back? If so, what does dmesg say during this time?
> Is the system in question under heavy load?
> 
> Can you confirm that the ping packet got stuck in the receive path or
> could the associated pong reply have gotten stuck in the send path?

  A tcpdump at the remote end shows the packet leaving, but a tcpdump at
the local side doesn't show it until the next packet arrives. I tried
this on a system running nothing but tcpdump, but the network load is
high (ping sends packets as soon as the previous reply comes back).


> It could be a weird interaction with interrupt mitigation, but I doubt it.
> Nobody has ever mailed me about such problems with the driver.

  Another note: I run my 2.6.7 with Local APIC and IO-APIC. Maybe that
has to do with interrupt problems. I will try reverting to the older PIC
during further testing to see if that has an effect on things.


> forcedeth_gigabit_try19.txt is the most recent one.
> Changes against try17:
> - fix compilation warnings and rename the Kconfig entry
> 
> Get it at
> http://www.hailfinger.org/carldani/linux/patches/forcedeth/
> and please report if it fixes your problem.

  OK, I'll do that.


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  reply	other threads:[~2004-06-23 16:21 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-06-23 14:29 Mikael Bouillot
2004-06-23 14:46 ` Martin Zwickel
2004-06-23 16:04   ` Mikael Bouillot
2004-06-23 14:56 ` Kalin KOZHUHAROV
2004-06-23 15:57   ` Carl-Daniel Hailfinger
2004-06-23 16:14     ` Mikael Bouillot [this message]
2004-06-23 17:02     ` Mikael Bouillot
2004-07-24 12:37   ` Carl-Daniel Hailfinger

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