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Message-ID: <Pine.LNX.4.44L0.0708151120410.3895-100000@iolanthe.rowland.org>
Date: Wed, 15 Aug 2007 11:24:50 -0400 (EDT)
From: Alan Stern <stern@...land.harvard.edu>
To: Florin Iucha <florin@...ha.net>
cc: Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
Tejun Heo <htejun@...il.com>, Greg KH <gregkh@...e.de>,
USB development list <linux-usb-devel@...ts.sourceforge.net>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [linux-usb-devel] USB-related oops in sysfs with linux
v2.6.23-rc3-50-g28e8351
On Wed, 15 Aug 2007, Florin Iucha wrote:
> On Wed, Aug 15, 2007 at 10:38:54AM -0400, Alan Stern wrote:
> > This patch will get rid of the annoying error messages. It won't do
> > anything about your keyboard's tendency to spontaneously stop working,
> > alas.
>
> My keyboard works fine for days, with kernels up to and including
> 2.6.23-rc2 . I have booted into 2.6.23-rc3-$whatever this morning, and
> after 10-15 minutes the keyboard stopped working. The mice which were
> plugged in the keyboard's built-in hub were fine though.
>
> The first time it happened, I removed the keyboard and got the oops
> that started this thread.
It wasn't an oops, just a warning.
> The second time, I just logged-in remotely
> and rebooted, and the reboot process stopped at "KILLING all
> processes" step. I simply reset the box and rebooted into 2.6.23-rc2
> and it is fine since (over an hour ago).
To track this down, you might try building 2.6.23-rc3 with
CONFIG_USB_DEBUG enabled. Then retrieve the dmesg log after the
keyboard stops working and post it. You probably ought to CC: the
maintainer of the HID core layer as well (and you can trim the existing
CC: list).
Alan Stern
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