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<a href="http://bamboo.asterisk.org/browse/AST162-FREEBSD81-I386/log" style="font-family: Arial, sans-serif; font-size: 15px; font-weight:bold; color:#000">AST162-FREEBSD81-I386-98</a>
<span style="font-family: Arial, sans-serif; font-size: 14px;"> has been queued, but there's no agent capable of building it.</span>
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<a href="http://bamboo.asterisk.org/browse/AST162-FREEBSD81-I386/log" style="text-decoration: none; font-family: Arial, sans-serif;text-align:left;font-size:16px;font-weight:bold;color:#036" >Code Changes</a>
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<a href="http://bamboo.asterisk.org/browse/author/jpeeler" style="font-family: Arial, sans-serif; font-size: 13px; font-weight:bold; color:#000">
jpeeler</a><br>
Convert device state callbacks to ao2 objects to fix a deadlock in chan_sip.<br/>
<br/>
Lock scenario presented here:<br/>
Thread 1<br/>
holds ast_rdlock_contexts &conlock<br/>
holds handle_statechange hints<br/>
holds handle_statechange hint<br/>
waiting for cb_extensionstate<br/>
Locked Here: chan_sip.c line 7428 (find_call)<br/>
Thread 2<br/>
holds handle_request_do &netlock<br/>
holds find_call sip_pvt_ptr<br/>
waiting for ast_rdlock_contexts &conlock<br/>
Locked Here: pbx.c line 9911 (ast_rdlock_contexts)<br/>
<br/>
Chan_sip has an established locking order of locking the sip_pvt and then<br/>
getting the context lock. So the as stated by the summary, the operations in<br/>
thread 2 have been modified to no longer require the context lock.<br/>
<br/>
(closes issue #18310)<br/>
Reported by: one47<br/>
Patches: <br/>
statecbs_ao2.mk2.patch uploaded by one47 (license 23),<br/>
modified by me<br/>
<br/>
Review: <a href="https://reviewboard.asterisk.org/r/1072/">https://reviewboard.asterisk.org/r/1072/</a><br/>
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(302265)
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<a href="http://bamboo.asterisk.org/browse/author/mnicholson" style="font-family: Arial, sans-serif; font-size: 13px; font-weight:bold; color:#000">
mnicholson</a><br>
Merged revisions 302311 via svnmerge from <br/>
<a href="https://origsvn.digium.com/svn/asterisk/branches/1.4">https://origsvn.digium.com/svn/asterisk/branches/1.4</a><br/>
<br/>
........<br/>
r302311 | mnicholson | 2011-01-18 15:35:03 -0600 (Tue, 18 Jan 2011) | 4 lines<br/>
<br/>
URI encode the user part of the contact header.<br/>
<br/>
ABE-2705<br/>
........<br/>
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(302313)
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