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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-36242] Use libunwind for backtraces</title>
                <link>https://jira.mongodb.org/browse/SERVER-36242</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="575028">SERVER-36242</key>
            <summary>Use libunwind for backtraces</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="andrew.morrow@mongodb.com">Andrew Morrow</assignee>
                                    <reporter username="greg.mckeon@mongodb.com">Gregory McKeon</reporter>
                        <labels>
                    </labels>
                <created>Mon, 23 Jul 2018 15:47:43 +0000</created>
                <updated>Sun, 29 Oct 2023 22:29:38 +0000</updated>
                            <resolved>Wed, 17 Jul 2019 14:49:56 +0000</resolved>
                                                    <fixVersion>4.3.1</fixVersion>
                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="2330417" author="xgen-internal-githook" created="Wed, 17 Jul 2019 14:49:47 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;A. Jesse Jiryu Davis&apos;, &apos;email&apos;: &apos;jesse@mongodb.com&apos;, &apos;username&apos;: &apos;ajdavis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-36242&quot; title=&quot;Use libunwind for backtraces&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-36242&quot;&gt;&lt;del&gt;SERVER-36242&lt;/del&gt;&lt;/a&gt; Optionally use libunwind for backtraces&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/cbead440945c78b577c29dab8c11e81a58ee7731&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/cbead440945c78b577c29dab8c11e81a58ee7731&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2330206" author="jesse" created="Wed, 17 Jul 2019 13:19:18 +0000"  >&lt;p&gt;Thanks! IIRC we could replace &lt;tt&gt;asm&lt;/tt&gt; with &lt;tt&gt;&amp;#95;&amp;#95;asm&amp;#95;&amp;#95;&lt;/tt&gt; to make lint happy, I may have omitted that in my branch.&lt;/p&gt;</comment>
                            <comment id="2309867" author="jesse" created="Tue, 2 Jul 2019 17:00:56 +0000"  >&lt;p&gt;Temporary branch with an implementation, which depends on &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-33259&quot; title=&quot;Include libunwind in src/third_party&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-33259&quot;&gt;&lt;del&gt;SERVER-33259&lt;/del&gt;&lt;/a&gt;: &lt;a href=&quot;https://github.com/ajdavis/mongo/commits/SERVER-33259/jesse&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/ajdavis/mongo/commits/SERVER-33259/jesse&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="2305586" author="jesse" created="Sat, 29 Jun 2019 02:11:37 +0000"  >&lt;p&gt;This work may introduce a file stacktrace_unsupported.cpp the stubs out getFrames() for platforms where we can&apos;t get backtraces. If it turns out we can support &lt;b&gt;all&lt;/b&gt; platforms, delete that file. (We&apos;re especially curious if we can support backtraces on Android now.)&lt;/p&gt;</comment>
                            <comment id="1955295" author="max.hirschhorn@10gen.com" created="Tue, 24 Jul 2018 16:51:37 +0000"  >&lt;p&gt;Good to know. If we do end up changing the format, then we&apos;ll need to update the regular expressions the Build Baron tool uses so that it can still extract the C++ stacktraces.&lt;/p&gt;</comment>
                            <comment id="1955280" author="acm" created="Tue, 24 Jul 2018 16:34:09 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=max.hirschhorn&quot; class=&quot;user-hover&quot; rel=&quot;max.hirschhorn&quot;&gt;max.hirschhorn&lt;/a&gt; - Unknown, but perhaps not. I think what we get from backtrace is just the addresses, and then we do our own formatting. As long as libunwind allows us to do the same, we can format as we see fit. We will try our best to not make any changes.&lt;/p&gt;</comment>
                            <comment id="1953793" author="max.hirschhorn@10gen.com" created="Mon, 23 Jul 2018 15:56:13 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=acm&quot; class=&quot;user-hover&quot; rel=&quot;acm&quot;&gt;acm&lt;/a&gt;, &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=greg.mckeon&quot; class=&quot;user-hover&quot; rel=&quot;greg.mckeon&quot;&gt;greg.mckeon&lt;/a&gt;, is this going to change the format of the C++ stacktraces that mongod logs in any way?&lt;/p&gt;</comment>
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            <issuekey id="501103">SERVER-33445</issuekey>
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