[IA64] Avoid kernel hang during CMC interrupt storm

[sfrench/cifs-2.6.git] / arch / ia64 / kernel / mca.c

diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c
index 6dc726ad71372954b36c02b93949f240ac794ee4..d0a5106fba243f8364d2e8e0d86b844566db7a7c 100644 (file)
--- a/arch/ia64/kernel/mca.c
+++ b/arch/ia64/kernel/mca.c
@@ -1016,6 +1016,11 @@ ia64_mca_cmc_int_handler(int cmc_irq, void *arg, struct pt_regs *ptregs)
 
                        cmc_polling_enabled = 1;
                        spin_unlock(&cmc_history_lock);
+                       /* If we're being hit with CMC interrupts, we won't
+                        * ever execute the schedule_work() below.  Need to
+                        * disable CMC interrupts on this processor now.
+                        */
+                       ia64_mca_cmc_vector_disable(NULL);
                        schedule_work(&cmc_disable_work);
 
                        /*