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    <title>MongoDB Jira</title>
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        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-22520] Educate ASAN leak checker about js allocations</title>
                <link>https://jira.mongodb.org/browse/SERVER-22520</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;ASAN has trouble dealing with the heap allocations SpiderMonkey produces, due to the storage format of those pointers (tagged punbox&apos;d types).  Keeping a side std::unordered_set&amp;lt;void*&amp;gt; which tracks allocations provides the reachability ASAN needs for a little bit of extra book keeping.&lt;/p&gt;</description>
                <environment></environment>
        <key id="263917">SERVER-22520</key>
            <summary>Educate ASAN leak checker about js allocations</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="9">Done</resolution>
                                        <assignee username="mira.carey@mongodb.com">Mira Carey</assignee>
                                    <reporter username="mira.carey@mongodb.com">Mira Carey</reporter>
                        <labels>
                            <label>bkp</label>
                            <label>platforms-re-triaged</label>
                    </labels>
                <created>Mon, 8 Feb 2016 19:34:24 +0000</created>
                <updated>Tue, 15 Aug 2017 01:18:14 +0000</updated>
                            <resolved>Fri, 7 Apr 2017 19:21:07 +0000</resolved>
                                    <version>3.3.1</version>
                                    <fixVersion>3.4.4</fixVersion>
                    <fixVersion>3.5.6</fixVersion>
                                    <component>JavaScript</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1544644" author="xgen-internal-githook" created="Sun, 9 Apr 2017 21:45:30 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;hanumantmk&apos;, u&apos;name&apos;: u&apos;Jason Carey&apos;, u&apos;email&apos;: u&apos;jcarey@argv.me&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22520&quot; title=&quot;Educate ASAN leak checker about js allocations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22520&quot;&gt;&lt;del&gt;SERVER-22520&lt;/del&gt;&lt;/a&gt; Improve ASAN MozJS integration&lt;/p&gt;

&lt;p&gt;ASAN has trouble dealing with the heap allocations SpiderMonkey&lt;br/&gt;
produces, due to the storage format of those pointers (tagged punbox&apos;d&lt;br/&gt;
types).  Keeping a side std::unordered_set&amp;lt;void*&amp;gt; which tracks&lt;br/&gt;
allocations provides the reachability ASAN needs for a little bit of&lt;br/&gt;
extra book keeping.&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 96f0fbd7911533fd4279742d81cf53b198d71b03)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/be3d66e78ccbf8e9cb96f1a7b1c270d84fab9b8a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/be3d66e78ccbf8e9cb96f1a7b1c270d84fab9b8a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1543973" author="xgen-internal-githook" created="Fri, 7 Apr 2017 19:20:31 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;hanumantmk&apos;, u&apos;name&apos;: u&apos;Jason Carey&apos;, u&apos;email&apos;: u&apos;jcarey@argv.me&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22520&quot; title=&quot;Educate ASAN leak checker about js allocations&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22520&quot;&gt;&lt;del&gt;SERVER-22520&lt;/del&gt;&lt;/a&gt; Improve ASAN MozJS integration&lt;/p&gt;

&lt;p&gt;ASAN has trouble dealing with the heap allocations SpiderMonkey&lt;br/&gt;
produces, due to the storage format of those pointers (tagged punbox&apos;d&lt;br/&gt;
types).  Keeping a side std::unordered_set&amp;lt;void*&amp;gt; which tracks&lt;br/&gt;
allocations provides the reachability ASAN needs for a little bit of&lt;br/&gt;
extra book keeping.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/96f0fbd7911533fd4279742d81cf53b198d71b03&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/96f0fbd7911533fd4279742d81cf53b198d71b03&lt;/a&gt;&lt;/p&gt;</comment>
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