netdev - Re: [Bugme-new] [Bug 38102] New: BUG kmalloc-2048: Poison overwritten

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Message-ID: <CAB9v_DEiPFzQt-TgeVC3r3Y7YFwApLK_NHkDahFOKpibtABrZg@mail.gmail.com>
Date:	Tue, 5 Jul 2011 09:18:55 +0400
From:	Alexey Zaytsev <alexey.zaytsev@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Michael Büsch <m@...s.ch>,
	Andrew Morton <akpm@...ux-foundation.org>,
	netdev@...r.kernel.org, Gary Zambrano <zambrano@...adcom.com>,
	bugme-daemon@...zilla.kernel.org,
	"David S. Miller" <davem@...emloft.net>,
	Pekka Pietikainen <pp@...oulu.fi>,
	Florian Schirmer <jolt@...box.org>,
	Felix Fietkau <nbd@...nwrt.org>, Michael Buesch <mb@...sch.de>
Subject: Re: [Bugme-new] [Bug 38102] New: BUG kmalloc-2048: Poison overwritten

On Tue, Jul 5, 2011 at 09:10, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le mardi 05 juillet 2011 à 08:57 +0400, Alexey Zaytsev a écrit :
>
>> Ran tcpdump. You are right, I was wrong. Sorry for the noise.
>
> Thanks for testing ;)
>
> It would be nice to know if the memory scribbles start after or before
> one RFO triggers.
>
> I can see this calls b44_init_rings() without really stopping the device
> before. This seems very suspect to me.
>

Actually, I've added a trace to show b44_init_rings and b44_free_rings
calls, and they are only called once, right after the driver is
loaded. So it can't be related to START_RFO. Will attach the diff and
dmesg.
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