On Thu, 2016-03-17 at 14:12 -0600, Alex Williamson wrote: > Fault rates can easily overwhelm the console and make the system > unresponsive. Ratelimit to allow an opportunity for maintenance. [] > diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c [] > @@ -1602,10 +1602,17 @@ irqreturn_t dmar_fault(int irq, void *dev_id) > int reg, fault_index; > u32 fault_status; > unsigned long flag; > + bool ratelimited; > + static DEFINE_RATELIMIT_STATE(rs, > + DEFAULT_RATELIMIT_INTERVAL, > + DEFAULT_RATELIMIT_BURST);
Are these the appropriate limits for dmar? include/linux/ratelimit.h:#define DEFAULT_RATELIMIT_INTERVAL (5 * HZ) include/linux/ratelimit.h:#define DEFAULT_RATELIMIT_BURST 10
