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: <20070821132704.GJ10422@iucha.net>
Date:	Tue, 21 Aug 2007 08:27:04 -0500
From:	Florin Iucha <florin@...ha.net>
To:	Jiri Kosina <jikos@...os.cz>
Cc:	linux-usb-devel@...ts.sourceforge.net,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Michal Piotrowski <michal.k.k.piotrowski@...il.com>
Subject: Re: [linux-usb-devel] USB-related oops in sysfs with linux
	v2.6.23-rc3-50-g28e8351

On Tue, Aug 21, 2007 at 08:17:59AM -0500, Florin Iucha wrote:
> On Tue, Aug 21, 2007 at 03:05:25PM +0200, Jiri Kosina wrote:
> > > I have rebuilt 2.6.23-rc3 with 'CONFIG_USB_EHCI_HCD=m' and 
> > > 'CONFIG_USB_SUSPEND is not set' and will use it for a while, to see if 
> > > the keyboard/usb behaves or not.
> > 
> > Thanks. If this doesn't give us any hint, it would be useful if you could 
> > do git-bisect between rc2 and rc3, I really can't immediately see anything 
> > in the list of commits that might directly cause the behavior you are 
> > seeing (most importantly because there were no USB and no HID updates in 
> > this window).
> 
> The keyboard still locked up.  There is absolutely nothing in the
> kernel log.
> 
> > There are approximately 290 commits, so it shouldn't require more than 9 
> > reboots plus the time needed to check whether the bug triggers or not.
> 
> The top commit is not v2.6.23-rc3 but
> 
>    commit 28e8351ac22de25034e048c680014ad824323c65
>    Merge: 3b993e8... d18c4d6...
>    Author: Linus Torvalds <torvalds@...dy.linux-foundation.org>
>    Date:   Tue Aug 14 10:00:29 2007 -0700
> 
>        Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes
> 
> I'll try to make time to bisect it...

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 ;)

florin

-- 
Bruce Schneier expects the Spanish Inquisition.
      http://geekz.co.uk/schneierfacts/fact/163

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