Commit 82409411 authored by akpm@osdl.org's avatar akpm@osdl.org Committed by Linus Torvalds
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[PATCH] kdump: i386 save ss esp bug fix 




)

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: default avatarVivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent aed615a9

arch/i386/kernel/crash.c

+4 −2
Original line number Diff line number Diff line
@@ -108,8 +108,10 @@ static void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs) 
{

	memcpy(newregs, oldregs, sizeof(*newregs));

	newregs->esp = (unsigned long)&(oldregs->esp);

	__asm__ __volatile__("xorl %eax, %eax;");

	__asm__ __volatile__ ("movw %%ss, %%ax;" :"=a"(newregs->xss));

	__asm__ __volatile__(

			"xorl %%eax, %%eax\n\t"

			"movw %%ss, %%ax\n\t"

			:"=a"(newregs->xss));

}



/* We may have saved_regs from where the error came from

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