netdev - Re: [PATCH 2.6.30-rc4] r8169: avoid losing MSI interrupts

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Message-Id: <1250895567.23419.1.camel@obelisk.thedillows.org>
Date:	Fri, 21 Aug 2009 18:59:27 -0400
From:	David Dillow <dave@...dillows.org>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Michael Riepe <michael.riepe@...glemail.com>,
	Michael Buesch <mb@...sch.de>,
	Francois Romieu <romieu@...zoreil.com>,
	Rui Santos <rsantos@...popie.com>,
	Michael Büker <m.bueker@...lin.de>,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH 2.6.30-rc4] r8169: avoid losing MSI interrupts

On Fri, 2009-08-21 at 13:57 -0700, Eric W. Biederman wrote:
> David Dillow <dave@...dillows.org> writes:
> I have what at first glance looks like a problem caused by this
> patch.  For the last month since upgrading one of my machines from
> 2.6.28 to 2.6.30 it has been becomming inaccessible from the
> network and I have a few:
> 
> NETDEV WATCHDOG: eth0 (r8169): transmit timed out
> 
> in my logs and a lot soft lockups that always have rtl8169_interrupt
> as the thing that is running.   I suspect your patch has introduced
> a near infinite loop in the interrupt handler and is causing these
> soft lockups.
> 
> Any ideas?

I would be surprised, but I suppose it is not out of the realm of
possibility. Can you send me a full dmesg, please?

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