"Garrett D'Amore" <[email protected]> wrote: > On Mon, 2010-10-11 at 11:18 -0700, Saadia Fatima wrote: > > How can I catch a system panic/freeze. I tried booting up with a kernel > > debugger, with -k option in the GRUB menu. When the system freezes how can > > I switch to the debugger? I tried f1+shift+a but it did not work. > > > > Thanks > > SF > > > If your system freeze occurs at a level below the keyboard interrupt > handler, then you're screwed. Some systems have a button or switch that > can generate an NMI -- if you have one of those, then that can work for > you. Otherwise, you're out of luck.
F1+a is handles via a low priority soft interrupt. On a Sparc system, you can replug the kbd and on a x86 system, you can send a BREAK (note that this is not ASCII) to the console. The latter events are handled via max-1 priorized interupt handlers and in most cases still working. Jörg -- EMail:[email protected] (home) Jörg Schilling D-13353 Berlin [email protected] (uni) [email protected] (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.berlios.de/private/ ftp://ftp.berlios.de/pub/schily _______________________________________________ opensolaris-code mailing list [email protected] http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
