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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/4380/">https://reviewboard.asterisk.org/r/4380/</a>
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<a href="https://reviewboard.asterisk.org/r/4380/diff/1/?file=71116#file71116line710" style="color: black; font-weight: bold; text-decoration: underline;">branches/11/main/tcptls.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; ">void *ast_tcptls_server_root(void *data)</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">710</font></th>
<td bgcolor="#ffffff" 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">errno</span> <span class="o">!=</span> <span class="n">EAGAIN</span><span class="p">)</span> <span class="o">&&</span> <span class="p">(</span><span class="n">errno</span> <span class="o">!=</span> <span class="n">EINTR</span><span class="p">))</span> <span class="p">{</span></pre></td>
<th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">710</font></th>
<td bgcolor="#ffffff" 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">errno</span> <span class="o">!=</span> <span class="n">EAGAIN</span><span class="p">)</span> <span class="o">&&</span> <span class="p">(</span><span class="n">errno</span> <span class="o">!=</span> <span class="n">EINTR</span><span class="p">))</span> <span class="p">{</span></pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">711</font></th>
<td bgcolor="#ffffff" 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_log</span><span class="p">(</span><span class="n">LOG_WARNING</span><span class="p">,</span> <span class="s">"Accept failed: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">strerror</span><span class="p">(</span><span class="n">errno</span><span class="p">));</span></pre></td>
<th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">711</font></th>
<td bgcolor="#ffffff" 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_log</span><span class="p">(</span><span class="n">LOG_WARNING</span><span class="p">,</span> <span class="s">"Accept failed: %s</span><span class="se">\n</span><span class="s">"</span><span class="p">,</span> <span class="n">strerror</span><span class="p">(</span><span class="n">errno</span><span class="p">));</span></pre></td>
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<th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">712</font></th>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></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="k">if</span> <span class="p">(</span><span class="n">errno</span> <span class="o">==</span> <span class="n">EBADF</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="tb"> </span><span class="k">break</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="p">}</span></pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">712</font></th>
<td bgcolor="#ffffff" 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="p">}</span></pre></td>
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<td bgcolor="#ffffff" 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="p">}</span></pre></td>
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<td bgcolor="#ffffff" 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">continue</span><span class="p">;</span></pre></td>
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<td bgcolor="#ffffff" 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">continue</span><span class="p">;</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I know in your case what was returned was EBADF; however, looking at what all can be returned by accept (http://linux.die.net/man/2/accept), I'm not sure we should continue under other circumstances as well.
* EAGAIN/EWOULDBLOCK - other than we should probably be handling EWOULDBLOCK, we should continue, and already do.
* EBADF - break. The accept isn't going to work ever.
* ECONNABORTED - if a single connection aborted, we should go back to accepting. Continue.
* EFAULT - break. The addr argument is invalid.
* EINTR - continue, which we already do.
* EINVAL - break. If the socket isn't listening for connections, accepting again isn't going to matter.
* EMFILE/ENFILE - break. If we've exceeded our file descriptor limit, things are going to go wrong quickly.
* ENOBUFS, ENOMEM - break. If we've exceeded the socket buffer limits, we're again going to run into larger issues.
* ENOTSOCK/EOPNOTSUPP - break. The file descriptor is not what we thought it was.
* EPROTO - break. I'm not sure why re-trying on a protocol error would be expected to succeed.
Given that, I think this could just be written:
if ((errno != EAGAIN) && (errno != EWOULDBLOCK) && (errno != EINTR)) {
ast_log(LOG_WARNING, "Accept failed: %s (%d)\n", strerror(errno), errno);
break;
}
continue;</pre>
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<p>- Matt Jordan</p>
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<p>On January 27th, 2015, 2:02 p.m. CST, Kevin Harwell wrote:</p>
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<div>Review request for Asterisk Developers.</div>
<div>By Kevin Harwell.</div>
<p style="color: grey;"><i>Updated Jan. 27, 2015, 2:02 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-24728">ASTERISK-24728</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;">While running through some scenarios using chan_sip and tcp a problem would occur that resulted in a flood of bad file descriptor messages on the cli:
tcptls.c:712 ast_tcptls_server_root: Accept failed: Bad file descriptor
The message is received because the underlying socket has been closed, so is valid. This is probably happening because unloading of chan_sip is not atomic. That however is outside the scope of this patch. This patch simply stops the logging of multiple occurrences of that message.</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;">This issue was found while doing some testing. Ran those tests again to make sure that the messages no longer consumed the cli and only printed once.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>branches/11/main/tcptls.c <span style="color: grey">(431188)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/4380/diff/" style="margin-left: 3em;">View Diff</a></p>
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