Re: Mouse interrupts: the death knell of a VP6

John Adams
2002-04-10T17:16:51Z

On Wednesday 10 April 2002 11:23 am, Oleg Drokin wrote:
> Hello!
>
> On Wed, Apr 10, 2002 at 09:02:05AM -0500, Brent Cook wrote:
> > I have an ABIT VP6 motherboard, using the VIA Apollo chipset and 2
> > 700Mhz PIII's, but please don't hold that against me. The system is
> > running 2.4.19-pre6. I believe that I either have a system that has
> > trouble handling a sudden bursts of interrupts, or have found a fault
> > in mouse handling.
>
> Have you tried to change MPS mode to 1.1 from 1.4 (I see addres message
> timeouts in your log)?
>
> > I have already tried removing memory, adding memory, changing
> > processors, video cards. The only thing that has remained constant is
> > the VP6 motherboard and the hard drive.
>
> My VP6 died on me recently with some funny symptoms:
> it hangs in X when I start netscape and move mouse, or if I do
> bk clone on kernel tree, it dies with
> kernel BUG at /usr/src/linux-2.4.18/include/asm/smplock.h:62!
> BUG in various places pretty soon.
> (this BUG is only appears if 2 CPUs are present in motherboard).
> So if your troubles began only recently, you might want to try another
> motherboard just to be sure.

I have a VP6 with 2 CPUs. Its has both a PS/2 mouse and a usb mouse. Its
been up for 90 days and handled lots of mouse interrupts. See below.
CPU0 CPU1
0: 392228152 392338774 IO-APIC-edge timer
1: 312494 312380 IO-APIC-edge keyboard
2: 0 0 XT-PIC cascade
3: 1 3 IO-APIC-edge serial
12: 40362907 40324010 IO-APIC-edge PS/2 Mouse
14: 3386577 3383180 IO-APIC-edge ide0
15: 679030 672810 IO-APIC-edge ide1
17: 1165246 1162993 IO-APIC-level DC395x_TRM
18: 83937970 83935445 IO-APIC-level ide2, eth0
19: 131956 132468 IO-APIC-level es1371, usb-uhci, usb-uhci
NMI: 0 0
LOC: 784686934 784686951
ERR: 191
MIS: 0

Its running a recent kernel. Maybe 2.4.18 is broken. Here's a uname -a
Linux flash 2.5.0 #16 SMP Wed Jan 9 16:48:16 EST 2002 i686 unknown

johna