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Message-ID: <1296156217.8720.3.camel@ceranb.brq.redhat.com>
Date:	Thu, 27 Jan 2011 20:23:36 +0100
From:	Ivan Vecera <ivecera@...hat.com>
To:	Francois Romieu <romieu@...zoreil.com>
Cc:	netdev@...r.kernel.org, Hayes <hayeswang@...ltek.com>
Subject: Re: [PATCH] r8169: use RxFIFO overflow workaround for 8168c chipset

On Thu, 2011-01-27 at 15:32 +0100, Francois Romieu wrote:
> Ivan Vecera <ivecera@...hat.com> :
> > I found that one of the 8168c chipsets (concretely XID 1c4000c0) starts
> > generating RxFIFO overflow errors. The result is an infinite loop in
> > interrupt handler as the RxFIFOOver is handled only for ...MAC_VER_11.
> 
> Acked-by: as your patch ties it to a specific 8168 revision (CFG_METHOD_6
> in Realtek's parlance).
> 
> Surprizing as it may seem, unconditionaly enabling it has not always
> produced the expected result. See 53f57357ff0afc37804f4e82ee3123e0c0a2cad6
> for instance. Realtek's r1868 driver ignores it most of time as well.
> 
> Was it normal high-load or pktgen like high load ?
The test case was: Migration of the several kvm guests at the same time
between two hosts.

Ivan

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