From: Frank Rowand <frank.rowand@am•sony.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Ming Lei <tom.leiming@gmail•com>,
"stern@rowland•harvard.edu" <stern@rowland•harvard.edu>,
"gregkh@linuxfoundation•org" <gregkh@linuxfoundation•org>,
"linux-usb@vger•kernel.org" <linux-usb@vger•kernel.org>,
"linux-kernel@vger•kernel.org" <linux-kernel@vger•kernel.org>,
"linux-omap@vger•kernel.org" <linux-omap@vger•kernel.org>,
"balbi@ti•com" <balbi@ti•com>,
"netdev@vger•kernel.org" <netdev@vger•kernel.org>,
"steve.glendinning@smsc•com" <steve.glendinning@smsc•com>
Subject: Re: [BUG] bisected: PandaBoard smsc95xx ethernet driver error from USB timeout
Date: Thu, 21 Mar 2013 13:32:31 -0700 [thread overview]
Message-ID: <514B6E5F.2040405@am.sony.com> (raw)
In-Reply-To: <514B6CAF.3090406@am.sony.com>
On 03/21/13 13:25, Frank Rowand wrote:
> On 03/21/13 02:00, Ming Lei wrote:
< snip >
> ----------
> There are some timeout messages that I am not positive are symptoms of
> the problem. With these messages, the smsc95xx driver initialization is
> successful, so the ethernet device is available. For the first bisect
> attempt, I did not treat these messages as errors. For the second bisect
> attempt I treated these messages as errors. A typical example of the
> timeout message is:
>
> [ 9.537811] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0002
> [ 17.056701] usb 1-1.1: swapper/0 timed out on ep0out len=0/4
> [ 17.062652] smsc95xx 1-1.1:1.0: eth0: Failed to write register index 0x00000108
> [ 17.070343] smsc95xx 1-1.1:1.0: eth0: Failed to write ADDRL: -110
> [ 17.076751] IP-Config: Failed to open eth0
Oops, pasted the wrong example. This is an example of a timeout, but the
driver still works, and the system boots:
[ 6.072357] smsc95xx 1-1.1:1.0: eth0: register 'smsc95xx' at usb-ehci-omap.0-1.1, smsc95xx USB 2.0 Ethernet, fa:50:73:02:79:67
[ 6.084655] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0002
[ 11.220672] usb 1-1.1: swapper/0 timed out on ep0out len=4/4
[ 18.183441] usb 1-1.1: link qh8-0001/dc8d6640 start 2 [1/0 us]
[ 19.822296] IP-Config: Complete:
>
> The mention of swapper is not relevent, it just happens to be the
> current process when the time out occurs.
>
> I have only seen these timeout messages in the boot log, so they may not
> be a very visible symptom. They also _might_ be unrelated to the problem,
> but my gut feel is that they are related.
< snip >
-Frank
next prev parent reply other threads:[~2013-03-21 20:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-21 3:29 [BUG] bisected: PandaBoard smsc95xx ethernet driver error from USB timeout Frank Rowand
2013-03-21 9:00 ` Ming Lei
2013-03-21 20:25 ` Frank Rowand
2013-03-21 20:32 ` Frank Rowand [this message]
2013-03-21 20:28 ` Frank Rowand
[not found] ` <514B6D77.8080202-mEdOJwZ7QcZBDgjK7y7TUQ@public.gmane.org>
2013-03-24 2:17 ` Ming Lei
[not found] ` <514A7E81.9000501-mEdOJwZ7QcZBDgjK7y7TUQ@public.gmane.org>
2013-03-21 14:41 ` Alan Stern
[not found] ` <Pine.LNX.4.44L0.1303211037070.1899-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
2013-03-21 20:05 ` Frank Rowand
2013-03-22 2:45 ` Frank Rowand
2013-03-22 8:42 ` Roger Quadros
2013-03-22 10:03 ` Mats Liljegren
2013-03-22 18:23 ` Frank Rowand
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