Bitmask for printing system info when panic happens. User can chose combination of the following bits:
===== ============================================
bit 0 print all tasks info
bit 1 print system memory info
bit 2 print timer info
bit 3 print locks info if ``CONFIG_LOCKDEP`` is on
bit 4 print ftrace buffer
bit 5 replay all kernel messages on consoles at the end of panic
bit 6 print all CPUs backtrace (if available in the arch)
bit 7 print only tasks in uninterruptible (blocked) state
===== ============================================
So for example to print tasks and memory info on panic, user can::
echo 3 > /proc/sys/kernel/panic_print