panic
—
bring down system on fatal error
#include
<sys/types.h>
#include
<sys/systm.h>
void
panic
(
const
char *fmt,
...);
void
vpanic
(
const
char *fmt,
va_list ap);
The
panic
() and
vpanic
() functions terminate 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 made.
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.