> > I am running the Plan 9 on the single CPU only (old IBM T30). > > Sorry, that means we are looking at two different panics.
Yes. My panic occurs inside 'fault' (search for 'faultarm' string) function of /sys/src/9/port/fault.c. It seems as an unfixable page fault. I thought I have a problem with the swap disk region. I tried 'cat /dev/sdC0/swap | wc -c' but it was ok. Pavel