This patch fixes the problem reported by Stas Sergeev, that kprobes steals
the virtual-8086 exceptions. This fix modifies kprobe_handler() to return 0 when in
virtual-8086 mode.


---

 linux-2.6.10-rc2-prasanna/arch/i386/kernel/kprobes.c |    4 ++++
 1 files changed, 4 insertions(+)

diff -puN arch/i386/kernel/kprobes.c~kprobes-vm86-interrupt-miss arch/i386/kernel/kprobes.c
--- linux-2.6.10-rc2/arch/i386/kernel/kprobes.c~kprobes-vm86-interrupt-miss	2004-11-17 18:30:11.000000000 +0530
+++ linux-2.6.10-rc2-prasanna/arch/i386/kernel/kprobes.c	2004-11-17 18:38:20.000000000 +0530
@@ -117,6 +117,10 @@ static inline int kprobe_handler(struct 
 	p = get_kprobe(addr);
 	if (!p) {
 		unlock_kprobes();
+		if (regs->eflags & VM_MASK)
+		/*we are in virtual-8086 mode, return 0*/
+			goto no_kprobe;
+
 		if (*addr != BREAKPOINT_INSTRUCTION) {
 			/*
 			 * The breakpoint instruction was removed right

_