Simon Horman <[email protected]> writes: > Hi Thomas, > > On Thu, May 07, 2015 at 02:35:59PM +0200, Thomas Gleixner wrote: >> On Thu, 7 May 2015, Simon Horman wrote: >> > ------------[ cut here ]------------ >> > kernel BUG at kernel/irq_work.c:135! >> >> BUG_ON(!irqs_disabled()); >> >> So something enables interrupts in the periodic tick handling >> machinery. Seems you have high resolution timers disabled, but nohz >> enabled. And that code path has a local_irq_disable/enable pair which >> causes havoc. Patch below. > > Thanks for your quick response. I have been able to confirm that > when applied on top of next-20150507 the problem I observed no longer > manifests. I have successfully tested it on all the boards > where I previously observed a problem. > > If you are planning to formally submit the patch below feel free to add: > > Tested-by: Simon Horman <[email protected]>
FWIW, I confirmed this fixed a boot hang on my kzm9d in next-20150507 also. Tested-by: Kevin Hilman <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
