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[PATCH] kdump: i386 save ss esp bug fix

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From: Vivek Goyal <vgoyal@in.ibm.com>

This patch fixes a minor bug based on Andi Kleen's suggestion.  asm's can't be
broken in this particular case, hence merging them.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
akpm@osdl.org
2006-01-09 20:51:40 -08:00
committed by Linus Torvalds
parent aed615a95f
commit 8240941157
1 changed files with 4 additions and 2 deletions
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6
arch/i386/kernel/crash.c
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@@ -108,8 +108,10 @@ static void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
{ {
memcpy(newregs, oldregs, sizeof(*newregs)); memcpy(newregs, oldregs, sizeof(*newregs));
newregs->esp = (unsigned long)&(oldregs->esp); newregs->esp = (unsigned long)&(oldregs->esp);
__asm__ __volatile__("xorl %eax, %eax;"); __asm__ __volatile__(
__asm__ __volatile__ ("movw %%ss, %%ax;" :"=a"(newregs->xss)); "xorl %%eax, %%eax\n\t"
"movw %%ss, %%ax\n\t"
:"=a"(newregs->xss));
} }
/* We may have saved_regs from where the error came from /* We may have saved_regs from where the error came from