From: Daniel Yeisley Date: Tue, 21 Feb 2006 02:27:54 +0000 (-0800) Subject: [PATCH] i386: need to pass virtual address to smp_read_mpc() X-Git-Tag: v2.6.16-rc5~100 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=7d4c8e56109e0799ab9fb644c08a8daf4a026675;p=platform%2Fkernel%2Flinux-3.10.git [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 Acked-by: Andi Kleen Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- 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");