1 files changed, 9 insertions, 1 deletions

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index bde57f0f1616..acb8c0585ab9 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -98,6 +98,12 @@ 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)
@@ -625,8 +631,10 @@ clear_dr7:
 
 #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