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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/4596/">https://reviewboard.asterisk.org/r/4596/</a>
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<p style="margin-top: 0;">On April 7th, 2015, 6:15 a.m. MDT, <b>Corey Farrell</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/4596/diff/1/?file=73638#file73638line1189" style="color: black; font-weight: bold; text-decoration: underline;">branches/13/res/res_pjsip_config_wizard.c</a>
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(Diff revision 1)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int load_module(void)</pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="k">if</span> <span class="p">(</span><span class="n">ast_module_check</span><span class="p">(</span><span class="s">"res_pjsip_phoneprov_provider.so"</span><span class="p">))</span> <span class="p">{</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="tb"> </span><span class="n">ast_module_reload</span><span class="p">(</span><span class="s">"res_pjsip_phoneprov_provider.so"</span><span class="p">);</span></pre></td>
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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;">I'm concerned that this is needed due to the load order change. My worry is that there might be other modules that will need this due to res_pjsip_config_wizard loading later.
I'm not confident enough with my knowledge of res_pjsip modules to say if this is ok.</pre>
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<p>On April 7th, 2015, 9:32 a.m. MDT, <b>George Joseph</b> wrote:</p>
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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;">This is due to how config_wizard is implemented (as a sorcery wizard). If config_wizard loads early then it will be in place before res_pjsip and res_pjsip_phoneprov_provider and all will load correctly. This causes it to unload late though and that caused the FRACKs. If the config_wizard loads after res_pjsip and res_pjsip_phoneprov_provider, then it has to trigger them both to reload or they won't pick up the config_wizard generated objects. The unloads work correctly in this case.
I'm looking at alternate config_wizard load/unload strategies but it's tricky. In the mean time, this should do the trick.
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<p>On April 8th, 2015, 6:24 a.m. MDT, <b>Corey Farrell</b> wrote:</p>
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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;">I'm still getting a FRACK during shutdown for tests/phoneprov/res_phoneprov_pjsip:
[Apr 07 19:05:24] WARNING[15482]: asterisk.asterisk:126 errReceived: Asterisk 127.0.0.1 received error: FRACK!, Failed assertion 0 (0) at line 274 in internal_ao2_traverse of astobj2_container.c
This appears twice in the same second.</pre>
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<p>On April 8th, 2015, 7:09 a.m. MDT, <b>Corey Farrell</b> wrote:</p>
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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;">I've reproduced with DO_CRASH and attached the backtrace to the JIRA ticket. Looks like res_pjsip_config_wizard is unloading before res_pjsip.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Looking... It SHOULD unload before res_pjsip and didn't cause issues when I tested it. </pre>
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<p>- George</p>
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<p>On April 6th, 2015, 2:32 p.m. MDT, George Joseph wrote:</p>
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<div>Review request for Asterisk Developers and Corey Farrell.</div>
<div>By George Joseph.</div>
<p style="color: grey;"><i>Updated April 6, 2015, 2:32 p.m.</i></p>
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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-24935">ASTERISK-24935</a>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<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;">Original issue: res_pjsip_phoneprov_provider was using ao2_callback with OBJ_MULTIPLE, then ignoring the return. This resulted in a reference leak. Added OBJ_NODATA flag.
Unfortunately, this highlighted a module unload order issue where res_phoneprov and res_pjsip_phoneprov_provider were unloading before res_pjsip_config_wizard, which needed them.
res_pjsip_config_wizard is itself a sorcery wizard so there are some complexities to it's load order (it's long story) but I've removed the GLOBAL_SYMBOLS flag from res_pjsip_config_wizard so it loads later and unloads earlier and also triggered a reload of res_pjsip_phoneprov_provider. Now they load and unload in the correct order.
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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;">Checked load/unload order and make sure there were no FRACKs on unload.
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>branches/13/res/res_pjsip_phoneprov_provider.c <span style="color: grey">(434148)</span></li>
<li>branches/13/res/res_pjsip_config_wizard.c <span style="color: grey">(434148)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/4596/diff/" style="margin-left: 3em;">View Diff</a></p>
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