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Date: Fri, 07 Nov 2003 07:10:01 +0800
From: David Xu <davidxu@freebsd.org>
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To: Branko@FreeBSD.org, "F."@FreeBSD.org, Grac@FreeBSD.org
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Subject: Re: FreeBSD 5.1-p10 reproducible crash with Apache2
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Branko F. Grac(nar wrote:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> David Xu wrote:
>
> | Are you using SYSV Semaphore IPC ?
> | On my machine, default mutex type for "sem" config will
> | be SYSV.
>
> I don't know how to figure this out.
>
> Brane
>
>
In its srclib/apr/include/apr.h, I have following lines:

#define APR_HAS_FLOCK_SERIALIZE           1
#define APR_HAS_SYSVSEM_SERIALIZE         1
#define APR_HAS_POSIXSEM_SERIALIZE        0
#define APR_HAS_FCNTL_SERIALIZE           1
#define APR_HAS_PROC_PTHREAD_SERIALIZE    0
#define APR_HAS_RWLOCK_SERIALIZE          0

So if I config it to use sem, it must use SYSVSEM.