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Message-id: <4B5BA81B.30908@majjas.com>
Date: Sat, 23 Jan 2010 20:53:31 -0500
From: Michael Breuer <mbreuer@...jas.com>
To: Jarek Poplawski <jarkao2@...il.com>
Cc: David Miller <davem@...emloft.net>,
Stephen Hemminger <shemminger@...ux-foundation.org>,
akpm@...ux-foundation.org, flyboy@...il.com,
linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
Michael Chan <mchan@...adcom.com>,
Don Fry <pcnet32@...izon.net>,
Francois Romieu <romieu@...zoreil.com>,
Matt Carlson <mcarlson@...adcom.com>
Subject: Re: Hang: 2.6.32.4 sky2/DMAR (was [PATCH] sky2: Fix WARNING: at
lib/dma-debug.c:902 check_sync)
On 1/23/2010 6:21 PM, Jarek Poplawski wrote:
> On Fri, Jan 22, 2010 at 06:50:21PM -0500, Michael Breuer wrote:
>
>> When the packets were dropped, there was a different sequence in the
>> log - DISCOVER/OFFER repeated. The "normal" is that the sequence
>> appeared correct and complete - DISCOVER/OFFER/REQUEST/ACK - or
>> INFORM/ACK (vs. INFORM repeatedly sans ACK) as the case may be.
>>
> Anyway, I'd be intersted if the switch matters here.
>
> Plus one more test: could you try to load sky2 with the parameter:
> "copybreak=1" (the rest as in any recent test, which gave you dmar
> errors; any switch).
>
> Thanks,
> Jarek P.
>
Ok - will try with and without the copybreak=1 after I'm done bisecting
2.6.33 rc5 for something unrelated (it'll take a couple of days for each
unless a crash occurs in less that 48 hours).
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