Messages in this thread | | | Date | Mon, 14 Feb 2011 10:38:44 -0500 | From | David Teigland <> | Subject | Re: [GIT PULL] dlm fix for 2.6.38 |
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On Sat, Feb 12, 2011 at 04:51:00PM +0100, Tejun Heo wrote: > On Sat, Feb 12, 2011 at 03:44:35PM +0000, Steven Whitehouse wrote: > > What is the issue here? If there is a problem with the workqueues then > > we should ask Tejun about it, > > Yeah, what kind of problem was it? There's only one work per > connection so reordering is not a problem. All the workqueue > operations use proper locking, so the conversion seemed safe to me. > What am I missing?
find_lkb seems to be getting an actual, but wrong lkid, so it's returning the wrong lkb in the receive routines. It happens fairly quickly with multiple wq threads, but not at all with single. One suspect I'm going to look at are the ls_stub and fields in the lockspace struct. I'm not convinced extra send/recv threads give us that much benefit in practice, so it's not my top priority at the moment.
Dave
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