PERFORCE change 107819 for review
Oleksandr Tymoshenko
gonzo at FreeBSD.org
Fri Oct 13 06:50:58 PDT 2006
http://perforce.freebsd.org/chv.cgi?CH=107819
Change 107819 by gonzo at gonzo_hq on 2006/10/13 13:49:55
o Set KSTACK_GUARD_PAGES to zero
o Use 3 pages for KSTACK. We're going to wire stack on thread switch
using TLB#0, so we need even-aligned virtual page number. Because
there is no possibility to specify kstack alignment we request 3
pages and use lowest even VPN.
Affected files ...
.. //depot/projects/mips2/src/sys/mips/include/param.h#3 edit
Differences ...
==== //depot/projects/mips2/src/sys/mips/include/param.h#3 (text+ko) ====
@@ -117,9 +117,9 @@
#define IOPAGES 2 /* pages of i/o permission bitmap */
#ifndef KSTACK_PAGES
-#define KSTACK_PAGES 4 /* pages of kstack (with pcb) */
+#define KSTACK_PAGES 3 /* pages of kstack (with pcb) */
#endif
-#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
+#define KSTACK_GUARD_PAGES 0 /* pages of kstack guard; 0 disables */
/*
* Ceiling on amount of swblock kva space, can be changed via
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