linux-kernel - Re: [linux-usb-devel] USB-related oops in sysfs with linux v2.6.23-rc3-50-g28e8351

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Message-ID: <Pine.LNX.4.64.0708211536560.2460@twin.jikos.cz>
Date:	Tue, 21 Aug 2007 15:42:26 +0200 (CEST)
From:	Jiri Kosina <jikos@...os.cz>
To:	Florin Iucha <florin@...ha.net>
cc:	linux-usb-devel@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>,
	trond.myklebust@....uio.no
Subject: Re: [linux-usb-devel] USB-related oops in sysfs with linux
 v2.6.23-rc3-50-g28e8351

On Tue, 21 Aug 2007, Florin Iucha wrote:

> There is another interesting angle to this: in the past, every time I 
> had keyboard problems, it used to be caused by the VFS and/or NFS... 
> after much wrangling, a bunch of bugs were fixed (Hi Trond, Peter, 
> Alan!). Now, after the keyboard "locked up", I used the mouse to close 
> the gnome session, then I logged-in remotely to reboot.  The reboot 
> process locked up and I need to use the reset button!  The second time 
> the keyboard "locked up" I listed my processes, and I noticed that I had 
> a couple of bash processes and a ssh process in "D" state. Something is 
> fishy again in the VFS ;)

Yes, there were some NFS updates in between -rc2 and 
28e8351ac22de25034e048c680014ad824323c65. I'd be now even more curious 
what are you going to find by bisect, please let us know.

I added Trond to CC, full thread to be found at 
http://lkml.org/lkml/2007/8/21/151 for reference.

Florin, it also might be useful to capture the states of stuck processess 
via alt-sysrq-T (or better by echo t > /proc/sysrq-trigger), so that we 
know better where are they stuck.

-- 
Jiri Kosina
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