08-12-2009
You can't by design.
There might be a workaround with Solaris dtrace.
Alternatively, you can patch or interpose the kill command to intercept it when -9 is passed and log the event.
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LEARN ABOUT OPENSOLARIS
killall
killall(1M) System Administration Commands killall(1M)
NAME
killall - kill all active processes
SYNOPSIS
/usr/sbin/killall [signal]
DESCRIPTION
killall is used by shutdown(1M) to kill all active processes not directly related to the shutdown procedure.
killall terminates all processes with open files so that the mounted file systems will be unbusied and can be unmounted.
killall sends signal (see kill(1)) to the active processes. If no signal is specified, a default of 15 is used.
The killall command can be run only by the super-user.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
kill(1), ps(1), fuser(1M), shutdown(1M), signal(3C), attributes(5)
SunOS 5.11 14 Sep 1992 killall(1M)