On Fri, May 30, 2014 at 09:53:08AM +1000, Dave Chinner wrote: > That sounds like a plan. Perhaps it would be useful to add a > WARN_ON_ONCE(stack_usage > 8k) (or some other arbitrary depth beyond > 8k) so that we get some indication that we're hitting a deep stack > but the system otherwise keeps functioning. That gives us some > motivation to keep stack usage down but isn't a fatal problem like > it is now.... We have check_stack_usage() and DEBUG_STACK_USAGE for this. Though it needs some tweaking if we move to 16K I gave it a try yesterday, and noticed a spew of noisy warnings as soon as I gave it a workload to chew on. (Moreso than usual with 8K stacks) Dave -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>