Date: Wed, 6 Dec 95 19:02:51 +0900 From: Mihoko Tanaka <m_tanaka@pa.yokogawa.co.jp> To: freebsd-hackers@freebsd.org Subject: samaphore remains Message-ID: <9512061002.AA16768@cabbage.pa.yokogawa.co.jp>
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Hi All,
Currently I'm using FreeBSD-R2.1.0-RELEASE on GATEWAY 2000 P5-90.
I found the trouble that if a program using semaphore died
anbormally, the semaphore which was created remains on kernel.
I think it should be released by kernel's exit() function.
Although one of the UNIX implementation calls semexit() routine from
exit(), FreeBSD doesn't call semexit() from anywhere.
Is there any reason for this?
I tried to fix the exit() as follows and it seems working well.
------------- cut here ---------------
*** kern_exit.c Tue May 30 17:05:25 1995
--- kern_exit.c.new Wed Dec 6 15:12:28 1995
***************
*** 130,135 ****
--- 130,139 ----
*/
fdfree(p);
+ #ifdef SYSVSEM
+ semexit(p);
+ #endif
+
/* The next two chunks should probably be moved to vmspace_exit. */
vm = p->p_vmspace;
#ifdef SYSVSHM
------------- cut here ---------------
--
Mihoko Tanaka
<m_tanaka@pa.yokogawa.co.jp>
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