Author: kib
Date: Tue Aug 18 09:09:39 2015
New Revision: 286878
URL: https://svnweb.freebsd.org/changeset/base/286878
Log:
MFC r286288:
Give large kernel stack to the initial thread.
Modified:
stable/10/sys/i386/i386/genassym.c
stable/10/sys/i386/i386/locore.s
stable/10/sys/i386/i386/machdep.c
stable/10/sys/i386/include/param.h
Directory Properties:
stable/10/ (props changed)
Modified: stable/10/sys/i386/i386/genassym.c
==============================================================================
--- stable/10/sys/i386/i386/genassym.c Tue Aug 18 09:09:27 2015
(r286877)
+++ stable/10/sys/i386/i386/genassym.c Tue Aug 18 09:09:39 2015
(r286878)
@@ -103,6 +103,7 @@ ASSYM(V_SYSCALL, offsetof(struct vmmeter
ASSYM(V_INTR, offsetof(struct vmmeter, v_intr));
/* ASSYM(UPAGES, UPAGES);*/
ASSYM(KSTACK_PAGES, KSTACK_PAGES);
+ASSYM(TD0_KSTACK_PAGES, TD0_KSTACK_PAGES);
ASSYM(PAGE_SIZE, PAGE_SIZE);
ASSYM(NPTEPG, NPTEPG);
ASSYM(NPDEPG, NPDEPG);
Modified: stable/10/sys/i386/i386/locore.s
==============================================================================
--- stable/10/sys/i386/i386/locore.s Tue Aug 18 09:09:27 2015
(r286877)
+++ stable/10/sys/i386/i386/locore.s Tue Aug 18 09:09:39 2015
(r286878)
@@ -731,7 +731,7 @@ no_kernend:
movl %esi,R(IdlePTD)
/* Allocate KSTACK */
- ALLOCPAGES(KSTACK_PAGES)
+ ALLOCPAGES(TD0_KSTACK_PAGES)
movl %esi,R(p0kpa)
addl $KERNBASE, %esi
movl %esi, R(proc0kstack)
@@ -800,7 +800,7 @@ no_kernend:
/* Map proc0's KSTACK in the physical way ... */
movl R(p0kpa), %eax
- movl $(KSTACK_PAGES), %ecx
+ movl $(TD0_KSTACK_PAGES), %ecx
fillkptphys($PG_RW)
/* Map ISA hole */
Modified: stable/10/sys/i386/i386/machdep.c
==============================================================================
--- stable/10/sys/i386/i386/machdep.c Tue Aug 18 09:09:27 2015
(r286877)
+++ stable/10/sys/i386/i386/machdep.c Tue Aug 18 09:09:39 2015
(r286878)
@@ -3153,7 +3153,7 @@ init386(first)
#endif
thread0.td_kstack = proc0kstack;
- thread0.td_kstack_pages = KSTACK_PAGES;
+ thread0.td_kstack_pages = TD0_KSTACK_PAGES;
/*
* This may be done better later if it gets more high level
Modified: stable/10/sys/i386/include/param.h
==============================================================================
--- stable/10/sys/i386/include/param.h Tue Aug 18 09:09:27 2015
(r286877)
+++ stable/10/sys/i386/include/param.h Tue Aug 18 09:09:39 2015
(r286878)
@@ -114,6 +114,11 @@
#define KSTACK_PAGES 2 /* Includes pcb! */
#endif
#define KSTACK_GUARD_PAGES 1 /* pages of kstack guard; 0 disables */
+#if KSTACK_PAGES < 4
+#define TD0_KSTACK_PAGES 4
+#else
+#define TD0_KSTACK_PAGES KSTACK_PAGES
+#endif
/*
* Ceiling on amount of swblock kva space, can be changed via
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