Hi Wei, A kernel bug report was opened against Ubuntu [0]. It was found that reverting the following commit resolved this bug: commit c2a9737f45e27d8263ff9643f994bda9bac0b944 Author: Wei Fang <fangwei1@xxxxxxxxxx> Date: Fri Oct 7 17:01:52 2016 -0700 vfs,mm: fix a dead loop in truncate_inode_pages_range() The regression was introduced as of v4.9-rc1. It was also sent to stable, and now affects 4.8.4 and newer. I was hoping to get your feedback, since you are the patch author. Do you think gathering any additional data will help diagnose this issue, or would it be best to submit a revert request? Thanks, Joe [0] http://pad.lv/1649342 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html