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From: Peter Wemm <peter@FreeBSD.org>
Subject: PERFORCE change 8153 for review
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http://people.freebsd.org/~peter/p4db/chv.cgi?CH=8153

Change 8153 by peter@peter_overcee on 2002/03/21 05:14:51

	I spoke too soon. 64 pages (512K) was not enough for gcc/expr.c
	either, so go for 256 (2MB) and make it a sysctl so I dont have to
	keep recompiling. :-]

Affected files ...

... //depot/projects/ia64/sys/kern/kern_exec.c#8 edit

Differences ...

==== //depot/projects/ia64/sys/kern/kern_exec.c#8 (text+ko) ====

@@ -95,6 +95,12 @@
 int ps_argsopen = 1;
 SYSCTL_INT(_kern, OID_AUTO, ps_argsopen, CTLFLAG_RW, &ps_argsopen, 0, "");
 
+#ifdef __ia64__
+/* XXX HACK */
+static int regstkpages = 256;
+SYSCTL_INT(_machdep, OID_AUTO, regstkpages, CTLFLAG_RW, &regstkpages, 0, "");
+#endif
+
 /*
  * Each of the items is a pointer to a `const struct execsw', hence the
  * double pointer here.
@@ -627,7 +633,7 @@
 		vm_offset_t bsaddr;
 		bsaddr = USRSTACK - 2*maxssiz;
 		error = vm_map_find(&vmspace->vm_map, 0, 0, &bsaddr,
-				    64 * PAGE_SIZE, 0,
+				    regstkpages * PAGE_SIZE, 0,
 				    VM_PROT_ALL, VM_PROT_ALL, 0);
 		FIRST_THREAD_IN_PROC(imgp->proc)->td_md.md_bspstore = bsaddr;
 	}

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