Hmm, I just updated my kernel to 1.5Q and now starte seing basically random illegal instruction traps from userland programs, one example is: trap: textfault at 402068f8!! sending SIGILL due to trap 16: illegal instructionkdb breakpoint at 111469c Stopped in pid 512 (make) at cpu_Debugger+0x4: nop db> c Anyone else seeing this? Martin