[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: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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@ -108,8 +108,10 @@ static void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
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{
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memcpy(newregs, oldregs, sizeof(*newregs));
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newregs->esp = (unsigned long)&(oldregs->esp);
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__asm__ __volatile__("xorl %eax, %eax;");
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__asm__ __volatile__ ("movw %%ss, %%ax;" :"=a"(newregs->xss));
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__asm__ __volatile__(
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"xorl %%eax, %%eax\n\t"
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"movw %%ss, %%ax\n\t"
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:"=a"(newregs->xss));
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}
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/* We may have saved_regs from where the error came from
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