From: Frank Rowand <frank.rowand-mEdOJwZ7QcZBDgjK7y7TUQ@public•gmane.org>
To: Alan Stern <stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public•gmane.org>
Cc: "Rowand,
Frank" <Frank_Rowand-FuZ7eS5WsvxBDgjK7y7TUQ@public•gmane.org>,
"gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public•gmane.org"
<gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public•gmane.org>,
"linux-usb-u79uwXL29TY76Z2rM5mHXA@public•gmane.org"
<linux-usb-u79uwXL29TY76Z2rM5mHXA@public•gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public•gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public•gmane.org>,
"linux-omap-u79uwXL29TY76Z2rM5mHXA@public•gmane.org"
<linux-omap-u79uwXL29TY76Z2rM5mHXA@public•gmane.org>,
"balbi-l0cyMroinI0@public•gmane.org"
<balbi-l0cyMroinI0@public•gmane.org>,
"netdev-u79uwXL29TY76Z2rM5mHXA@public•gmane.org"
<netdev-u79uwXL29TY76Z2rM5mHXA@public•gmane.org>,
"steve.glendinning-sdUf+H5yV5I@public•gmane.org"
<steve.glendinning-sdUf+H5yV5I@public•gmane.org>
Subject: Re: [BUG] bisected: PandaBoard smsc95xx ethernet driver error from USB timeout
Date: Thu, 21 Mar 2013 13:05:02 -0700 [thread overview]
Message-ID: <514B67EE.8030404@am.sony.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1303211037070.1899-100000-IYeN2dnnYyZXsRXLowluHWD2FQJk+8+b@public.gmane.org>
On 03/21/13 07:41, Alan Stern wrote:
> On Wed, 20 Mar 2013, Frank Rowand wrote:
>
>> Hi All,
>>
>> Not quite sure quite where the problem is (USB, OMAP, smsc95xx driver, other???),
>> so casting the nets wide...
>>
>> The PandaBoard frequently fails to boot with an eth0 error when mounting
>> the root file system via NFS (ethernet driver fails due to a USB timeout;
>> no ethernet means NFS won't work). A typical set of error messages is:
>>
>> [ 3.264373] smsc95xx 1-1.1:1.0: usb_probe_interface
>> [ 3.269500] smsc95xx 1-1.1:1.0: usb_probe_interface - got id
>> [ 3.275543] smsc95xx v1.0.4
>> [ 8.078674] smsc95xx 1-1.1:1.0: eth0: register 'smsc95xx' at usb-ehci-omap.0-1.1, smsc95xx USB 2.0 Ethernet, 82:b9:1d:fa:67:0d
>> [ 8.091003] hub 1-1:1.0: state 7 ports 5 chg 0000 evt 0002
>> [ 13.509918] usb 1-1.1: swapper/0 timed out on ep0out len=0/4
>> [ 13.515869] smsc95xx 1-1.1:1.0: eth0: Failed to write register index 0x00000108
>> [ 13.523559] smsc95xx 1-1.1:1.0: eth0: Failed to write ADDRL: -110
>> [ 13.529998] IP-Config: Failed to open eth0
>>
>> I have bisected this to:
>>
>> commit 18aafe64d75d0e27dae206cacf4171e4e485d285
>> Author: Alan Stern <stern-nwvwT67g6+6dFdvTe/nMLpVzexx5G7lz@public•gmane.org>
>> Date: Wed Jul 11 11:23:04 2012 -0400
>>
>> USB: EHCI: use hrtimer for the I/O watchdog
>
> I don't understand how that commit could cause a timeout unless there
> are at least two other bugs present in your system.
Yes, I would not be at all surprised if this commit merely exposes a
problem in other code. That is why I included so many different people
and subsystems on the email distribution list.
< snip >
-Frank
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next prev parent reply other threads:[~2013-03-21 20:05 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
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 [this message]
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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