Hi, Ralph Corderoy wrote: > Hi, > > Is there any mechanism to detect the stack growing down and trampling > the process descriptor? As far as I know there isn't. At least you can easily crash your computer by overflowing the kernel stack. The attached module does the job. I also attach the kernel messages I get on an Alpha SMP machine, when running the module. regards Martin -- Supercomputing System AG email: maletinsky@scs.ch Martin Maletinsky phone: +41 (0)1 445 16 05 Technoparkstrasse 1 fax: +41 (0)1 445 16 10 CH-8005 Zurich
call/depth 815 call/depth 816 call/depth 817 call/depth 818 call/depth 819 call/depth 820 call/depth 821 call/depth 822 call/depth 823 call/depth 824 call/depth 825 call/depth 826 call/depth 827 CPU 0 (17266): Instruction fault 3 pc = [<fffffc00003107b0>] ra = [<fffffc000032014c>] ps = 0000 v0 = 000000001eae85b0 t0 = fffffc0000310a70 t1 = 0000000000000001 halted CPU 0 CPU 1 is not halted halt code = 4 invalid PTBR PC = fffffc0000331060
