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Date:	Fri, 29 Jun 2012 01:31:42 +0200
From:	"Stefan Lippers-Hollmann" <s.L-H@....de>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	Nix <nix@...eri.org.uk>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: 3.4.x regression: rtl8169: frequent resets

Hi

On Thursday 28 June 2012, Francois Romieu wrote:
> Nix <nix@...eri.org.uk> :
> > I recently upgraded from 3.3.x to 3.4.4, and am now experiencing
> > networking problems with my desktop box's r8169 card. The symptoms are
> > that all traffic ceases for five to ten seconds, then the card appears
> > to reset and everything is back to normal -- until it happens again. It
> > can happen quite a lot:
> 
> Can you try and revert 036dafa28da1e2565a8529de2ae663c37b7a0060 ?
> 
> I would welcome a complete dmesg including the XID line from the
> r8169 driver.

I received the same oops from a 3.4.4 user with these onboard network 
cards:

r8169 0000:04:00.0: eth0: RTL8168d/8111d at 0xffffc90000c72000, 00:24:1d:72:7c:75, XID 081000c0 IRQ 44
r8169 0000:05:00.0: eth1: RTL8168d/8111d at 0xffffc90000c70000, 00:24:1d:72:7c:77, XID 081000c0 IRQ 45

Reverting 036dafa28da1e2565a8529de2ae663c37b7a0060 (Nix, trivial 
backport to 3.4.4 attached) did improve the situation, no oops in 21
hours uptime so far (while it usually shows up within about an hour).
Unfortunately his oops report was cut brief, so I've asked him to try 
reproducing it with an unpatched kernel again, to collect a full dmesg
(the test is still going on, past the one hour mark, but the oops 
hasn't triggered yet). I'll report back, as soon as I get confirmation 
and a full dmesg.

Regards
	Stefan Lippers-Hollmann

View attachment "revert-r8169-add-byte-queue-limit-support.patch" of type "text/x-patch" (1833 bytes)

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