Provided by: freebsd-manpages_7.0-2_all
panic - bring down system on fatal error
panic(const char *fmt, ...);
The panic() function terminates the running system. The message fmt is a
printf(3) style format string. The message is printed to the console and
the location panicstr is set to the address of the message text for
retrieval from the OS core dump.
If the kernel debugger is installed control is passed to it, otherwise an
attempt to save a core dump of the OS to a configured dump device is
If panic() is called twice (from the disk sync routines, for example) the
system is rebooted without syncing the disks.
The panic() function does not return.