On 11/01/2013 07:36 AM, Rik van Riel wrote: > On 11/01/2013 07:08 AM, Mel Gorman wrote: >> On Thu, Oct 31, 2013 at 04:31:44PM -0400, Rik van Riel wrote: >>> There is a race between stop_two_cpus, and the global stop_cpus. >>> >> >> What was the trigger for this? I want to see what was missing from my own >> testing. I'm going to go out on a limb and guess that CPU hotplug was also >> running in the background to specifically stress this sort of rare condition. >> Something like running a standard test with the monitors/watch-cpuoffline.sh >> from mmtests running in parallel. > > AFAIK the trigger was a test that continuously loads and > unloads kernel modules, while doing other stuff. >
With this patch in place the module load/unload test ran for ~16 hours without failure. Without the patch the test usually fails in 5-10 minutes. Tested-by: Prarit Bhargava <pra...@redhat.com> P. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
