Ok, I'll check this now. Thanks! Jianpeng -----Original Message----- From: Sage Weil [mailto:sweil@xxxxxxxxxx] Sent: Wednesday, October 17, 2018 6:55 AM To: Ma, Jianpeng <jianpeng.ma@xxxxxxxxx> Cc: ceph-devel@xxxxxxxxxxxxxxx Subject: ContextQueue vs op_wq race? Hi Jianpeng, Can you take a look at http://tracker.ceph.com/issues/36473 and see if you have any ideas? Does that possible race make sense? Thanks! sage