Dear Surya... > I wanted to know how to troubleshoot a sytem freeze. It freezes > completely no mouse movement keyboard does not work. Hard reboot and > I find nothing in the logs. Kernel is 2.6.14. I have noticed this > happening after upgrading my kernel from 2.6.13.4 to 2.6.14. Hm, no keyboard reaction....then magic sysrq won't do any good. Try to enable serial console and send magic sysrq from another PC/laptop through serial link. Dump the stack trace and registers as this might provide a hint. However, no guarantee it will work too. Usually, NMI watchdog is your friend on this kind of system lock, but I am not sure whether your laptop has one. try to find out by reading your laptop manual regards Mulyadi -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
