Help solving lockup problem

[synic]

I know this is a broad question that may take a while to answer... but I thought I would see if it's something common anyway.

I have a Thinkpad 600x here (pIII coppermine 500mhz). It randomly locks up in Linux, but never has it locked up in Windows.

I am using these optimization flags: -march=i686 -O3 -pipe. I started from stage3, so not everything has these flags.

I tried using preempt and also without it. I have run memtest without any problems.

I have tried a couple different pcmcia net cards (as this is the only add-on hardware in the system), but they were just different versions of the 16 bit xircom card.

The lockups can sometimes be strange... as in every once in a while the mouse can still move, but nothing works.

Anyway, if anyone has any suggestions they would be greatly appreciated.

Thanks

[synic]

An update on this for those of you who might have the same problem.

I have determined that the lockup is caused by the kernel module for the old xircom cards (I'm not sure about the pcmcia-cs module). The lockup does not happen if I use a new xircom card (the ones that use the xircom_tulip_cb module) or if I use a non xircom card.

Hope that helps!