[CCing Andrew] On Thu 24-12-15 09:12:53, Jeremiah Mahler wrote: > all, > > I have started seeing a "Bad rss-counter" message in the logs with > the latest linux-next 20151222+. > > [ 458.282192] BUG: Bad rss-counter state mm:ffff8800c5a96000 idx:3 val:3894
This is MM_SHMEMPAGES so an "unamapped" shmem memory. One possible reason might be an unitialized zap_details used from unmap_mapping_range during truncate introduced by "mm, oom: introduce oom reaper" from the mmotm tree. There is a fix for this which is still pending http://lkml.kernel.org/r/1450487091-7822-1-git-send-email-sasha.levin%40oracle.com -- Michal Hocko SUSE Labs -- 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/
