[asterisk-dev] [Code Review] 4454: chan_sip: Fix realtime locking inversion when poking a just built peer.

[rmudgett]

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(Updated March 6, 2015, 1:18 p.m.)


Status
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This change has been marked as submitted.


Review request for Asterisk Developers.


Changes
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Committed in revision 432526


Bugs: ASTERISK-24838
    https://issues.asterisk.org/jira/browse/ASTERISK-24838


Repository: Asterisk


Description
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When a realtime peer is built it can cause a locking inversion when the
just built peer is poked.  If the CLI command "sip show channels" is
periodically executed a deadlock can happen because of the locking
inversion.

* Push the peer poke off onto the scheduler thread to avoid the locking
inversion of the just built realtime peer.


Diffs
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  /branches/11/channels/chan_sip.c 432422 

Diff: https://reviewboard.asterisk.org/r/4454/diff/


Testing
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Compiling and code inspection.  I don't have a realtime setup to test with.


Thanks,

rmudgett

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