On 22 Jul 2003 17:26:10 +0200 Michael Troß (MT) wrote: MT> Seems that a spin lock is already held. Do you get this oops right after MT> opening the device? Then please try NoSelfTest. No, the lockup happens during operation. Sometimes the kernel runs only for about one hour, sometimes for a day, but never longer before the lockups happen. I don't think going back to 2.4.18 will make a difference for this case, or do you think it will? Regards, -Udo.