---

yaml --- r: 131469 b: refs/heads/master c: be71661 h: refs/heads/master i: 131467: 5fe38d7 v: v3
git-mirror · Feb 15, 2009 · f18b8e7 · f18b8e7
1 parent 22608e2
commit f18b8e7
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Showing 2 changed files with 10 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: e49590b6dd356f8ef10ba3531a29e5086f6f2e3a
+refs/heads/master: be716615fe596ee117292dc615e95f707fb67fd1
diff --git a/trunk/arch/x86/kernel/traps.c b/trunk/arch/x86/kernel/traps.c
@@ -99,6 +99,12 @@ static inline void preempt_conditional_sti(struct pt_regs *regs)
 		local_irq_enable();
 }
 
+static inline void conditional_cli(struct pt_regs *regs)
+{
+	if (regs->flags & X86_EFLAGS_IF)
+		local_irq_disable();
+}
+
 static inline void preempt_conditional_cli(struct pt_regs *regs)
 {
 	if (regs->flags & X86_EFLAGS_IF)
@@ -626,8 +632,10 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
 
 #ifdef CONFIG_X86_32
 debug_vm86:
+	/* reenable preemption: handle_vm86_trap() might sleep */
+	dec_preempt_count();
 	handle_vm86_trap((struct kernel_vm86_regs *) regs, error_code, 1);
-	preempt_conditional_cli(regs);
+	conditional_cli(regs);
 	return;
 #endif