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authorDaniel Yeisley <dan.yeisley@unisys.com>2006-02-20 18:27:54 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-02-20 20:00:09 -0800
commit7d4c8e56109e0799ab9fb644c08a8daf4a026675 (patch)
tree31e94080489cf7c1348dac86d0606179742555e7 /arch
parent9b0f8b040acd8dfd23860754c0d09ff4f44e2cbc (diff)
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[PATCH] i386: need to pass virtual address to smp_read_mpc()
I'm seeing a kernel panic on an ES7000-600 when booting in virtual wire mode. The panic happens because smp_read_mpc() is passed a physical address, and it should be virtual. I tested the attached patch on the ES7000-600 and on a 2 cpu Dell box, and saw no problems on either. Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com> Acked-by: Andi Kleen <ak@muc.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/i386/kernel/mpparse.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/i386/kernel/mpparse.c b/arch/i386/kernel/mpparse.c
index 0102f3d..e7609ab 100644
--- a/arch/i386/kernel/mpparse.c
+++ b/arch/i386/kernel/mpparse.c
@@ -710,7 +710,7 @@ void __init get_smp_config (void)
* Read the physical hardware table. Anything here will
* override the defaults.
*/
- if (!smp_read_mpc((void *)mpf->mpf_physptr)) {
+ if (!smp_read_mpc(phys_to_virt(mpf->mpf_physptr))) {
smp_found_config = 0;
printk(KERN_ERR "BIOS bug, MP table errors detected!...\n");
printk(KERN_ERR "... disabling SMP support. (tell your hw vendor)\n");