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Merged revisions 81832 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r81832 | russell | 2007-09-06 17:28:57 -0500 (Thu, 06 Sep 2007) | 16 lines (closes issue #9724, closes issue #10374) Reported by: kenw Patches: 9724.txt uploaded by russell (license 2) Tested by: kenw, russell Resolve a deadlock that occurs when doing a SIP transfer to parking. I come across this type of deadlock fairly often it seems. It is very important to mind the boundary between the channel driver and the core in respect to the channel lock and the channel-pvt lock. Channel drivers lock to lock the pvt and then the channel once it calls into the core, while the core will do it in the opposite order. The way this is avoided is by having channel drivers either release their pvt lock while calling into the core, or such as in this case, unlocking the pvt just long enough to acquire the channel lock. ........ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@81839 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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