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    <title>MongoDB Jira</title>
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    <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-30260] Fix race condition in ServiceEntryPointImpl endAllSessions</title>
                <link>https://jira.mongodb.org/browse/SERVER-30260</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description></description>
                <environment></environment>
        <key id="406824">SERVER-30260</key>
            <summary>Fix race condition in ServiceEntryPointImpl endAllSessions</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="jonathan.reams@mongodb.com">Jonathan Reams</assignee>
                                    <reporter username="jonathan.reams@mongodb.com">Jonathan Reams</reporter>
                        <labels>
                    </labels>
                <created>Fri, 21 Jul 2017 15:24:46 +0000</created>
                <updated>Mon, 30 Oct 2023 23:15:02 +0000</updated>
                            <resolved>Fri, 28 Jul 2017 15:01:57 +0000</resolved>
                                                    <fixVersion>3.5.11</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="1634548" author="xgen-internal-githook" created="Fri, 28 Jul 2017 15:00:54 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;jbreams@mongodb.com&apos;, &apos;username&apos;: &apos;jbreams&apos;, &apos;name&apos;: &apos;Jonathan Reams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-30260&quot; title=&quot;Fix race condition in ServiceEntryPointImpl endAllSessions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-30260&quot;&gt;&lt;del&gt;SERVER-30260&lt;/del&gt;&lt;/a&gt; Fix race condition in endAllSessions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/6f5f53f79552aacbbfba8c7e61cf7b15f58f3f3f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/6f5f53f79552aacbbfba8c7e61cf7b15f58f3f3f&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1628814" author="jonathan.reams@10gen.com" created="Fri, 21 Jul 2017 17:04:20 +0000"  >&lt;p&gt;No, it can happen during replication stepdown or feature compatibility changes, which also call endAllSessions(). I guess I should have said endAllSessions() only gets called during shutdown if ASAN is active.&lt;/p&gt;</comment>
                            <comment id="1628811" author="charlie.swanson" created="Fri, 21 Jul 2017 17:03:19 +0000"  >&lt;p&gt;Gotcha, thanks! So this should only ever happen on ASAN, and result in a server crash with a segfault?&lt;/p&gt;</comment>
                            <comment id="1628807" author="jonathan.reams@10gen.com" created="Fri, 21 Jul 2017 17:01:19 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=charlie.swanson&quot; class=&quot;user-hover&quot; rel=&quot;charlie.swanson&quot;&gt;charlie.swanson&lt;/a&gt;, it doesn&apos;t look like BF-5995 is related; endAllSessions() doesn&apos;t get called during shutdown except if you&apos;re running under ASAN. The race is that the Client and transport::Session can be cleaned up while endAllSessions() is terminating connections. So the SSM that owns them is still around, but deferencing the transport::SessionHandle to check its tags for endAllSessions will crash the server with a segfault. &lt;/p&gt;</comment>
                            <comment id="1628753" author="charlie.swanson" created="Fri, 21 Jul 2017 16:25:34 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=jonathan.reams&quot; class=&quot;user-hover&quot; rel=&quot;jonathan.reams&quot;&gt;jonathan.reams&lt;/a&gt; can you describe the race? I&apos;m looking at some build failures (such as BF-5995) and curious how this might impact shutdown.&lt;/p&gt;</comment>
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