Hi, These patches add new notifier function and implement it to panic_notifier_list. We used the hardcoded notifier chain so far, but it was not flexible. New notifier is very flexible, because user can change a list of order by debugfs. Please review, and give some comments. Thanks, Example) # cd /sys/kernel/debug/ # ls kprobes pktcdvd # insmod ipmi_msghandler.ko # ls kprobes panic_notifier_list pktcdvd # cd panic_notifier_list/ # ls ipmi_msghandler # insmod ipmi_watchdog.ko # ls ipmi_msghandler ipmi_wdog # cat ipmi_msghandler/priority 200 # cat ipmi_wdog/priority 150 # Kernel panic - not syncing: panic ipmi_msghandler : notifier calls panic_event(). ipmi_watchdog : notifier calls wdog_panic_handler(). .....(reboot) # cat ipmi_msghandler/priority 200 # cat ipmi_wdog/priority 150 # echo 300 > ipmi_wdog/priority # Kernel panic - not syncing: panic ipmi_watchdog : notifier calls wdog_panic_handler(). ipmi_msghandler : notifier calls panic_event(). -- Takenori Nagano <t-nagano at ah.jp.nec.com>
