From owner-freebsd-current  Mon May 11 21:47:23 1998
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From: "John W. DeBoskey" <jwd@unx.sas.com>
Message-Id: <199805120447.AA02335@mozart>
Subject: sysconf(_SC_PAGESIZE) broken ??
To: freebsd-current@FreeBSD.ORG
Date: Tue, 12 May 1998 00:47:21 -0400 (EDT)
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Hi,

   I'm running 3.0 current on my machine:

FreeBSD FreeBSD.pc.sas.com 3.0-CURRENT FreeBSD 3.0-CURRENT #1:
   Mon May 11 23:04:43 EDT 1998
   root@FreeBSD.pc.sas.com:/usr/src/sys/compile/FreeBSD  i386

   The following program gives a rather bogus result which causes
cdrecord to fail rather miserably:

main()
{
   int rc;
   rc = sysconf(_SC_PAGESIZE);   
   printf("_SC_PAGESIZE == %d\n",rc);
   return(0);
}

$ make sysconftst
cc -O -pipe  sysconf.c  -o sysconf
$ ./sysconftst
_SC_PAGESIZE == -1
$ 


   I'm wondering whether or not this is due to my adding the Posix
scheduling options to the kernel for cdrecord (ie: enable the
sched_get_priority_max(SCHED_RR) code).

#
# Enable Posix priority scheduling
#
options         "P1003_1B"
options         "_KPOSIX_PRIORITY_SCHEDULING"
options         "_KPOSIX_VERSION=199309L"


   Well, now I guess I'll start building a kernel without all three
options and see what happens.


   Comments? Critiques?  They're all welcome!

Thanks,
John

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