Date: Thu, 17 Mar 2005 12:34:06 -0500 From: Aziz KEZZOU <opensource.enthousiat@gmail.com> To: freebsd-hackers@freebsd.org Subject: How to send a signal from inside the kernel? Message-ID: <37e13166050317093477de8f7a@mail.gmail.com>
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Hi all,
I would like to send a signal (e.g SIGUSR1) to a user process from
inside the kernel (kld module).
Can any one tell me how to do it ?
I tried the following code inspired from sys/kern/kern_sig.c :
==============================================================
#include <sys/types.h>
#include <sys/signal.h>
int process_pid;
struct kill_args {
int pid;
int signum;
};
void send_SIGUSR1() {
struct kill_args uap;
uap.pid = process_pid;
uap.signum = SIGUSR1;
kill((struct thread *)0, &uap);
}
===============================================================
but that causes a page fault in kernel mode (ie. Kernel panic :-)
Any help is appreciated, thanks.
Aziz
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