On 09/04/09 09:20, Bastian Blank wrote: > On Fri, Sep 04, 2009 at 09:07:39AM -0700, Jeremy Fitzhardinge wrote: > >> But for some reason that's triggering a failsafe callback, which invokes >> a GP. >> > Hmm, not in my tests. It always returned to userspace correctly and died > some operations later, usually the "ret". This then produced either a > segfault (unreadable address), sigill (if it managed to reach the ELF > header of the ld.so) or a GPF.
Hm, I may have misdiagnosed it then. Your symptoms are odd; either its landing back in userspace in the right place but then stumbles on for a while before crashing (wrong processor mode?) or the eip is wrong and its just landing in the wrong place and crashing immediately. How non-deterministic is it? Does it differ every time, or from boot to boot, build to build? J -- To UNSUBSCRIBE, email to debian-kernel-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org