On Thu, 2005-04-14 at 00:34 -0400, Gerald Waugh wrote:

I get a lot of these errors when running CentOS4.

Kernel Panic - not syncing: drivers/ide/pci/pix.c:390 spin_lock (drivers/ide/ide.c:c306ad68) already locked by drivers/ide/ide- iops.c/1234.

Must be something in the drivers or the kernel, it does not happen using 2.4.x kernels. Maybe some kind of a race condition?

Enabling 32 bit mode for the drives in the BIOS cured this problem.

Gerald