x86: machine_halt() forcibly re-enables IRQs as it may be called from

panic() which itself may be called in an IRQ-safe critical section.
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
xen-unstable changeset:   17837:a3319f32496fd93a545fc354ce3944072cc32e5e
xen-unstable date:        Thu Jun 12 16:09:08 2008 +0100

diff --git a/xen/arch/x86/shutdown.c b/xen/arch/x86/shutdown.c
index 760b260bc29266437dab7c91362e13714825cd8f..c94a31a9df5b821ce0e86779c833c36dd0fbb292 100644 (file)
--- a/xen/arch/x86/shutdown.c
+++ b/xen/arch/x86/shutdown.c
@@ -50,6 +50,7 @@ void machine_halt(void)
 {
     watchdog_disable();
     console_start_sync();
+    local_irq_enable();
     smp_call_function(__machine_halt, NULL, 1, 0);
     __machine_halt(NULL);
 }