[Copying ceph-devel, dropping ceph-users]
Yeah, that looks like a bug. I pushed wip-filejournal that reapplies
Jianpeng's original patch and this one. I'm not certain about last other
suggested fix, though, but I'm hoping that this fix explains the strange
behavior Jianpeng and Mark have seen
I think this is the issue..
http://tracker.ceph.com/issues/9073
Thanks & Regards
Somnath
From: Somnath Roy
Sent: Tuesday, August 19, 2014 6:25 PM
To: Sage Weil (s...@inktank.com); Samuel Just (sam.j...@inktank.com)
Cc: ceph-users@lists.ceph.com
Subject: Deadlock in ceph journal
Hi Sage/Sam,
Dur
Hi Sage/Sam,
During our testing we found a potential deadlock scenario in the filestore
journal code base. This is happening because of two reason.
1. This is because code is not signaling aio_cond from
check_aio_completion() in case seq = 0
2. Following changes in the write_thread
