Date: Mon, 10 Aug 1998 18:56:32 -0400 From: Marc Tardif <intmktg@cam.org> To: freebsd-hackers@FreeBSD.ORG Cc: freebsd-questions@FreeBSD.ORG Subject: semop syscall trouble Message-ID: <35CF7AA0.208CBEBA@cam.org>
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Hi,
I'm trying to use the semop(), but the program stalls right at that
system call. I'm using 2.2.5 with SYSVSHM, SYSVSEM, SYSVMSG compiled in
the kernel. Following is part of my code as well as the last couple
lines from ktrace:
dbms.c
static void semcall(sid, op)
int sid;
int op;
{
struct sembuf sb;
sb.sem_num = 0;
sb.sem_op = op;
sb.sem_flg = 0;
if (semop(sid, &sb, 1) == -1)
syserr("semop");
}
ktrace.out
232 dbms CALL semsys(0x2,0x10001,0xefbfdc24,0x1,0)
232 dbms PSIG SIGINT SIG_DFL
SIGINT SIG_DFL is obviously where I Ctrl-C to leave the stalled program.
Any insight would be greatly appreciated.
Thanks in advance,
Marc
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