svn commit: r204278 - head/sys/kern

[Brooks Davis]

Author: brooks
Date: Wed Feb 24 15:52:18 2010
New Revision: 204278
URL: http://svn.freebsd.org/changeset/base/204278

Log:
  Don't inforce an upper bound on kern.ngroups.  The INT_MAX-1 limit was
  too high due to several overflows.  The actual limit is somewhere in the
  neighborhood of INT_MAX/4 on 64-bit machines, but most systems could not
  support such a limit due to a lack of memory and the cost of duplicate
  credentials.
  
  Reported by:	bde

Modified:
  head/sys/kern/subr_param.c

Modified: head/sys/kern/subr_param.c
==============================================================================
--- head/sys/kern/subr_param.c	Wed Feb 24 15:27:31 2010	(r204277)
+++ head/sys/kern/subr_param.c	Wed Feb 24 15:52:18 2010	(r204278)
@@ -240,8 +240,6 @@ init_param1(void)
 	TUNABLE_INT_FETCH("kern.ngroups", &ngroups_max);
 	if (ngroups_max < NGROUPS_MAX)
 		ngroups_max = NGROUPS_MAX;
-	if (ngroups_max > INT_MAX - 1)
-		ngroups_max = INT_MAX - 1;
 }
 
 /*