[asterisk-dev] [Code Review] chan_sip directed pickup deadlock

Russell Bryant reviewboard at asterisk.org
Wed Apr 13 09:46:24 CDT 2011


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/team/bbryant/sip-call-pickup/channels/chan_sip.c
<https://reviewboard.asterisk.org/r/1175/#comment6924>

    It looks like there is a problem if this code doesn't take the if branch here.


- Russell


On 2011-04-13 09:36:11, Brett Bryant wrote:
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> (Updated 2011-04-13 09:36:11)
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> 
> Review request for Asterisk Developers.
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> Summary
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> This patch fixes a deadlock which would cause ast_do_masquerade to request a channel lock while already holding a sip_pvt structure, violating locking order and causing deadlocks each time a directed pickup was finished locking up asterisk entirely holding the channels lock.
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> Diffs
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>   /team/bbryant/sip-call-pickup/channels/chan_sip.c 313525 
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> Diff: https://reviewboard.asterisk.org/r/1175/diff
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> Testing
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> Thanks,
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> Brett
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>

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