X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fkernel%2Fsmp.c;h=c28fbf398391c73a871efef14d98f193f4a32c70;hb=4e4f43fe003969bdaa246374b90e16708a22ef79;hp=5805707ed2674f53ffab493dbe7504b3338b110a;hpb=86090fcac5e27b630656fe3d963a6b80e26dac44;p=linux-2.6.git

diff --git a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c
index 5805707ed..c28fbf398 100644
--- a/arch/ppc/kernel/smp.c
+++ b/arch/ppc/kernel/smp.c
@@ -211,6 +211,8 @@ int smp_call_function(void (*func) (void *info), void *info, int nonatomic,
            bitmask. --RR */
 	if (num_online_cpus() <= 1)
 		return 0;
+	/* Can deadlock when called with interrupts disabled */
+	WARN_ON(irqs_disabled());
 	return __smp_call_function(func, info, wait, MSG_ALL_BUT_SELF);
 }