Re: 2.6.25-rc5.git4 regression PS/2 mouse not detected/working

Hi Yanko,

On Wed, Apr 02, 2008 at 02:17:31AM +0300, Yanko Kaneti wrote:
On Tue, 2008-03-18 at 11:54 -0400, Dmitry Torokhov wrote:
On Mon, Mar 17, 2008 at 08:58:43PM +0200, Yanko Kaneti wrote:
On Mon, 2008-03-17 at 14:55 -0400, Dmitry Torokhov wrote:
On Mon, Mar 17, 2008 at 07:33:49PM +0200, Yanko Kaneti wrote:

My PS/2 mouse stops being detected between kernels 2.6.24.3-12.fc8 and
2.6.25-0.121.rc5.git4.fc9 (which I believe do not carry any patches in
that area). Its an ASUS P5E-VM DO motherboard , bios revision 0506. The
PS/2 keyboard still works.

Attached are both dmesg logs with i8042.debug=1, dmidecode, lspci -vvnn
Tried i8042.noloop and both the mouse and keyboard stop working.


Could you please send me dmesg from booting with i8042.noloop. I would
expect this option to help in your case so I am curious what went wrong.

Attached


Hmm, it looks the kernel does the right thing in case of i8042.noloop,
except that it does not work :(. Kernel triest to query the mouse but
it does not respond.

Can you try taking contents of drivers/input/serio from 2.6.25 and
copy it in .24? It will most likely compile... If that works I'm
afraid I will ahve to ask you to do git biscect to find the offending
commit.

Hey again,

I finally did the bisecting. It found the cuplrit to be

commit e3f37a54f690d3e64995ea7ecea08c5ab3070faf
Author: Balaji Rao <balajirrao@xxxxxxxxx>
Date: Wed Jan 30 13:30:03 2008 +0100

x86: assign IRQs to HPET timers


I tried reverting the change on the latest git with the attached patch
and my mouse and keyboard appear to be detected and working fine now.
The patch had to be stiched by hand and due to my lack of understanding
of the code might be breaking random other stuff.

FWIW the bios on this board has no knobs for HPET that I could find.

What gives?


Hmm, this is wierd and really outsize of my knowledge... Lets try copying
Ingo, Thomas and Balaji, maybe they can help us out here.

Btw, what is in your /proc/interrupts?

--
Dmitry
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