Comment 15 for bug 666211

Jay,

to hopefully answer all questions: the "non-standard" question aimed to understand what additional packages were installed and what is the use when things happen. It sometimes helps to understand the problem better when knowing how the system is in use exactly. Also knowing the Xen version and the hardware may (or may not) help. When I use a m1.xlarge for example I seem to get more memory (16G) and less CPU (4, whatever that is the real cores or hyperthreads of it). Not that it should normally matter with that deadlock, but sometimes it does.

So for the deadlock, I will to have to follow the traces more closely. But at least knowing that pgbouncer is some user-space damon that does some db proxy stuff and seeing aio somewhere in the traces gives some hint what types of fs access are involved in the game.