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authorakpm@osdl.org <akpm@osdl.org>2006-01-09 23:51:40 -0500
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-10 11:01:26 -0500
commit82409411571ad89d271dc46f7fa26149fad9efdf (patch)
tree3e7523c55a2d883f2a7d9ac3285ed6ebb864fb1b
parentaed615a95f6dcc243daa99cc80658ad9ada95097 (diff)
[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>
-rw-r--r--arch/i386/kernel/crash.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/i386/kernel/crash.c b/arch/i386/kernel/crash.c
index 0248e084017c..10fe6569751e 100644
--- a/arch/i386/kernel/crash.c
+++ b/arch/i386/kernel/crash.c
@@ -108,8 +108,10 @@ static void crash_setup_regs(struct pt_regs *newregs, struct pt_regs *oldregs)
108{ 108{
109 memcpy(newregs, oldregs, sizeof(*newregs)); 109 memcpy(newregs, oldregs, sizeof(*newregs));
110 newregs->esp = (unsigned long)&(oldregs->esp); 110 newregs->esp = (unsigned long)&(oldregs->esp);
111 __asm__ __volatile__("xorl %eax, %eax;"); 111 __asm__ __volatile__(
112 __asm__ __volatile__ ("movw %%ss, %%ax;" :"=a"(newregs->xss)); 112 "xorl %%eax, %%eax\n\t"
113 "movw %%ss, %%ax\n\t"
114 :"=a"(newregs->xss));
113} 115}
114 116
115/* We may have saved_regs from where the error came from 117/* We may have saved_regs from where the error came from