From: Francois Romieu <romieu@fr.zoreil.com>
To: Ivan Vecera <ivecera@redhat.com>
Cc: netdev@vger.kernel.org, Hayes <hayeswang@realtek.com>
Subject: Re: [PATCH] r8169: use RxFIFO overflow workaround for 8168c chipset
Date: Fri, 28 Jan 2011 18:28:55 +0100 [thread overview]
Message-ID: <20110128172854.GA8151@electric-eye.fr.zoreil.com> (raw)
In-Reply-To: <20110128172537.GA11064@electric-eye.fr.zoreil.com>
Ivan Vecera <ivecera@redhat.com> :
[...]
> The test case was: Migration of the several kvm guests at the same time
> between two hosts.
:o(
Could you check if simply leaving the irq handler when status == RxFIFOOver
works by any chance ?
Faced with pktgen, RTL_GIGA_MAC_VER_26 spits RxFIFO overflow errors quite
fast (10000 packets kill it, reliably). The same fix as your avoids the crash.
As is, RTL_GIGA_MAC_VER_12 seems to survive at 900kpps. It signals RXFIFO
overflow, loses half the packets and sends pause control frames but it does
not crash. I have made it leave the irq handler when status == RxFIFOOver.
I'll see if it can stand a few hours like that.
--
Ueimor
next prev parent reply other threads:[~2011-01-28 17:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-27 11:24 [PATCH] r8169: use RxFIFO overflow workaround for 8168c chipset Ivan Vecera
2011-01-27 11:27 ` Ivan Vecera
2011-01-27 14:32 ` Francois Romieu
2011-01-27 19:23 ` Ivan Vecera
[not found] ` <20110128172537.GA11064@electric-eye.fr.zoreil.com>
2011-01-28 17:28 ` Francois Romieu [this message]
2011-02-01 10:30 ` Ivan Vecera
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