From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040115

Description of problem:
After upgrading the Kernel from the initial released version
2.6.1-1.65 to 2.6.3-2.1.253.2.1 the mouse does no longer work.
As a result the X-server cannot be started.

The log shows the following:
Mar 21 14:50:21 localhost kernel: mice: PS/2 mouse device common for
all mice
Mar 21 14:50:21 localhost kernel: serio: i8042 AUX port at 0x60,0x64
irq 12
Mar 21 14:50:21 localhost kernel: input: ImExPS/2 Generic Explorer
Mouse on isa0060/serio1

and later:
Mar 21 14:50:30 localhost gpm[1548]: O0o.oops(): [gpm.c(937)]: 
Mar 21 14:50:30 localhost gpm[1548]: Could not open /dev/mouse.
Mar 21 14:50:30 localhost gpm: O0o.oops(): [gpm.c(937)]: 
Mar 21 14:50:30 localhost gpm: Starten von gpm succeeded

Hardware information:
Logitech cordless mouse connected via a four way KMD switch to the PS2
board of the mainboard with KT266 chipset. Note even if the mouse is
connected directly to the PS2 connector it does not work.

Solution:
Booting the old kernel solves the problem.

Version-Release number of selected component (if applicable):
kernel-2.6.3-2.1.253.2.1

How reproducible:
Always

Steps to Reproduce:
1. Boot the machine with kernel 2.6.3-2.1.253.2.1
2.
3.
    

Actual Results:  No mouse detected by GPM, X-server cannot start

Expected Results:  Mouse detected and start of X-server without errors.

Additional info: