Date: Tue, 22 Apr 2003 20:53:48 -0400 (EDT) From: Andre Guibert de Bruet <andy@siliconlandmark.com> To: doc@freebsd.org Subject: Re: Posix semaphore problem (fwd) Message-ID: <20030422204821.T59991@alpha.siliconlandmark.com>
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Hi, The attached message is from current@. On 5-CURRENT, there is no "sem" kld. The closest kld by name is sysvsem.ko but a grep on the output of strings for "sem_open" doesn't return anything. Any ideas? Please CC me, as I'm not subscribed to doc@. Regards, > Andre Guibert de Bruet | Enterprise Software Consultant > > Silicon Landmark, LLC. | http://siliconlandmark.com/ > ---------- Forwarded message ---------- Date: Sun, 23 Mar 2003 10:25:34 -0500 From: Craig Rodrigues <rodrigc@attbi.com> To: Hongbo Li <stevensbsd@yahoo.com> Cc: current@FreeBSD.ORG Subject: Re: Posix semaphore problem On Sun, Mar 23, 2003 at 01:55:03AM -0800, Hongbo Li wrote: > I just run a example program from the book unp2v2 > written W.Richard Stevens. The program includes a call > to sem_open. The compilation was ok. But when I run it > on FreeBSD 5-current(recent),the system print "Bad > system call (core dumped)". The program code : I get the same problem. Read the man page for sem(4) which explains the kernel option or kernel module that needs to be used for POSIX semaphores to work. However, I am not sure that this man page is entirely correct, since if I do: kldload sem I get "No such file or directory". -- Craig Rodrigues http://home.attbi.com/~rodrigc rodrigc@attbi.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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