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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/1563/">https://reviewboard.asterisk.org/r/1563/</a>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">We have a circular reference between the sip_pvt and the sip_peer and we are trying to lock both of them at the same time... That is about as complex and messy as it gets.
The more I looked at this the more I realized the correct fix is to avoid locking the sip peer and sip pvt at the same time. I've attached a patch of my approach for this on this issue, https://issues.asterisk.org/jira/browse/ASTERISK-18663. It has only been compile tested for 1.8, but I think it offers a good alternate solution that should be considered.
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<p>- David</p>
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<p>On November 3rd, 2011, 10:15 a.m., opticron wrote:</p>
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<div>Review request for Asterisk Developers and David Vossel.</div>
<div>By opticron.</div>
<p style="color: grey;"><i>Updated Nov. 3, 2011, 10:15 a.m.</i></p>
<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Fix a locking inversion that causes deadlocks during BLF subscriptions. This moves locking back outside of sip_send_mwi_to_peer and adds locking where it was needed.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Compile</pre>
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<b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>
<a href="https://issues.asterisk.org/jira/browse/ASTERISK-18663">ASTERISK-18663</a>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>trunk/channels/chan_sip.c <span style="color: grey">(342600)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/1563/diff/" style="margin-left: 3em;">View Diff</a></p>
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