linux-kernel - Re: Keyboard stops working after *lock [Was: 2.6.21-rc2-mm1]

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Message-ID: <Pine.LNX.4.44L0.0703131225390.2509-100000@iolanthe.rowland.org>
Date:	Tue, 13 Mar 2007 12:30:24 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Jiri Slaby <jirislaby@...il.com>
cc:	Jiri Kosina <jikos@...os.cz>, <linux-kernel@...r.kernel.org>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Keyboard stops working after *lock [Was: 2.6.21-rc2-mm1]

On Tue, 13 Mar 2007, Jiri Slaby wrote:

> On 3/13/07, Alan Stern <stern@...land.harvard.edu> wrote:
> > I don't see anything in the UHCI snapshots to explain the difference in
> > behavior.  One thing that stands out is the other, low-speed device (a
> > mouse?) -- in the bad kernel dump its driver was running and in the good
> > kernel dump its driver wasn't.
> 
> There weren't any changes neither in HW config nor in modules, just
> reverted, compiled, installed, rebooted. Mouse is HID user too, so I
> don't know what was wrong with that.

Odd...

> > Can you get another pair of usbmon logs, starting from before you plug in
> > the keyboard?  Don't bother with the UHCI snapshots for now.
> 
> So, do you mean rmmod uhci_hcd, unplug the keyboard, modprobe
> uhci_hcd, start usbmon, plug the keyboard, press numlock, stop usbmon,
> post it?

Yes.  In fact, let's be safe and unplug _both_ the mouse and the keyboard.  
Then after starting usbmon, plug in only the keyboard.

> I'm away from the box till Sat, anyway.

Okay, no rush.

Alan Stern

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