From: Roland McGrath <roland@redhat.com>
Date: Wed, 30 Jan 2008 12:30:50 +0000 (+0100)
Subject: x86: single_step 0xf0
X-Git-Tag: v2.6.25-rc1~1143^2~705
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5f76cb1f6c42e7575256595f85b8b97d84ec669e;p=linux-2.6

x86: single_step 0xf0

This fixes the 64-bit single-step handling code's instruction
decoder to grok the 0xf0 (lock) prefix, which the 32-bit code
already does correctly.

Signed-off-by: Roland McGrath <roland@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---

diff --git a/arch/x86/kernel/step.c b/arch/x86/kernel/step.c
index 3b70f20f21..6a93b93f91 100644
--- a/arch/x86/kernel/step.c
+++ b/arch/x86/kernel/step.c
@@ -66,7 +66,7 @@ static int is_setting_trap_flag(struct task_struct *child, struct pt_regs *regs)
 		case 0x26: case 0x2e:
 		case 0x36: case 0x3e:
 		case 0x64: case 0x65:
-		case 0xf2: case 0xf3:
+		case 0xf0: case 0xf2: case 0xf3:
 			continue;
 
 		case 0x40 ... 0x4f: