On Mon, Oct 11, 2010 at 11:22:56AM -0700, Garrett D'Amore 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.
If the freeze impedes the system clock, you can enable the deadman timeout by putting: set snooping = 1 in /etc/system (and reboot). If the system freezes for 50 seconds, the deadman timer will invoke panic(), which will start kmdb. Cheers, - jonathan _______________________________________________ opensolaris-code mailing list opensolaris-code@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/opensolaris-code