Re: [PATCH] kbdmux(4) update

On Fri, Feb 24, 2006 at 03:36:14PM -0800, Maksim Yevmenkin wrote:
> dear Hackers,
> 
> i was finally able to trace hard lockup problem with kbdmux(4), ps/2 
> keyboard and ps/2 mouse under x11.
> 
> the problem was traced back to the following code in kbdmux(4)
> 
> this is only happening when kbdmux(4), ps/2 keyboard and ps/2 mouse used 
> together, and, here is why: atkbd_check_char() calls kbdc_data_ready(). 
> the later will return "true" if there are pending data in either kbd or 
> aux queue.

Hmm, I wonder if this could be the cause of the lockups on my laptop
when using the touchpad.  I started using kbdmux a while ago with the
built-in (PS/2) and USB keyboard but never even suspected it when I
traced my occasional hard lockups to using the touchpad.

I'll try the patch tonight and see if it clears up the problem.

Craig