From: Cyril Chemparathy <cyril@ti.com>
To: Caglar Akyuz <caglarakyuz@gmail.com>
Cc: Michael Williamson <michael.williamson@criticallink.com>,
Kevin Hilman <khilman@deeprootsystems.com>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"davinci-linux-open-source@linux.davincidsp.com"
<davinci-linux-open-source@linux.davincidsp.com>,
"linux-omap@vger.kernel.org" <linux-omap@vger.kernel.org>
Subject: Re: [PATCH v3 00/10] split out emac cpdma and mdio for reuse
Date: Mon, 13 Sep 2010 10:09:15 -0400 [thread overview]
Message-ID: <4C8E308B.7020003@ti.com> (raw)
In-Reply-To: <201009111154.42171.caglarakyuz@gmail.com>
Hi Caglar,
[...]
> Unfortunately emac driver is not stable after this series. I face lock-ups
> time to time, followed by attached kernel trace.
Could you elaborate on your test scenario so that I can try and
reproduce the problem at my end? Also, did you have the contents of my
commit stack in this particular kernel build?
Assuming that the DMA got stuck at some point leading up to the transmit
timeout, any ideas as to why a host error was not thrown? To help
debug, I'll post out a set of patches that dump out the MAC (and DMA)
registers on timeout. That should give us some visibility into the problem.
> [ 1651.440000] nfs: server 192.168.2.34 not responding, still trying
> [ 1859.010000] ------------[ cut here ]------------
> [ 1859.010000] WARNING: at net/sched/sch_generic.c:258
> dev_watchdog+0x184/0x294()
> [ 1859.020000] NETDEV WATCHDOG: eth0 (davinci_emac): transmit queue 0 timed
> out
[...]
Regards
Cyril.
next prev parent reply other threads:[~2010-09-13 14:09 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-07 20:25 [PATCH v3 00/10] split out emac cpdma and mdio for reuse Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 01/10] net: davinci_emac: separate out davinci mdio Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 02/10] davinci: add mdio platform devices Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 03/10] omap: " Cyril Chemparathy
2010-09-08 1:00 ` Tony Lindgren
2010-09-07 20:25 ` [PATCH v3 04/10] net: davinci_emac: switch to new mdio Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 05/10] davinci: cleanup unused davinci mdio arch code Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 06/10] omap: " Cyril Chemparathy
2010-09-08 1:00 ` Tony Lindgren
2010-09-07 20:25 ` [PATCH v3 07/10] net: davinci_emac: cleanup unused mdio emac code Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 08/10] net: davinci_emac: separate out cpdma code Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 09/10] net: davinci_emac: switch to new cpdma layer Cyril Chemparathy
2010-09-07 20:25 ` [PATCH v3 10/10] net: davinci_emac: cleanup unused cpdma code Cyril Chemparathy
2010-09-08 1:18 ` [PATCH v3 00/10] split out emac cpdma and mdio for reuse Kevin Hilman
2010-09-08 2:22 ` Michael Williamson
2010-09-08 21:59 ` Cyril Chemparathy
2010-09-09 0:47 ` Michael Williamson
2010-09-09 18:43 ` Michael Williamson
2010-09-09 19:51 ` Cyril Chemparathy
2010-09-09 21:24 ` Cyril Chemparathy
2010-09-09 21:45 ` Michael Williamson
2010-09-09 21:25 ` Michael Williamson
2010-09-10 15:23 ` Caglar Akyuz
2010-09-11 8:54 ` Caglar Akyuz
2010-09-13 14:09 ` Cyril Chemparathy [this message]
2010-09-13 15:46 ` Cyril Chemparathy
2010-09-13 17:51 ` Caglar Akyuz
2010-09-10 22:59 ` Cyril Chemparathy
2010-09-11 13:14 ` Michael Williamson
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