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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-64024] fix race in tearDown of ThreadedOperationDeadlineTests</title>
                <link>https://jira.mongodb.org/browse/SERVER-64024</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;These tests create a waiter thread that generates timer-based activity on an opCtx, including making its wait member functions throw exceptions.&lt;br/&gt;
The TSAN alerts in BF-24287 were generated by the destructor of the waiter thread.&lt;br/&gt;
The destructor wrote over some DBException Status fields that were read by the main thread. Without a synchronization point after the main thread reads Status.code, the waiter thread shutdown destroys the Status.&lt;/p&gt;

&lt;p&gt;This should be a false alarm, because the exception thrown by the packaged_task&apos;s callback function should be attached to the std::future associated with the std::packaged_task, and after delivery to the std::future, the std::future should no longer share any state with the std::packaged_task. Destruction of the task should not affect the delivered exception&apos;s Status object.&lt;/p&gt;

&lt;p&gt;This race can be eliminated by destroying the packaged_task on the main thread, and joining the waiter thread at the bottom of the test&apos;s scope. Adding it as a data member of the WaitTestState achieves this.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1990937">SERVER-64024</key>
            <summary>fix race in tearDown of ThreadedOperationDeadlineTests</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="billy.donahue@mongodb.com">Billy Donahue</assignee>
                                    <reporter username="billy.donahue@mongodb.com">Billy Donahue</reporter>
                        <labels>
                    </labels>
                <created>Sun, 27 Feb 2022 11:08:15 +0000</created>
                <updated>Sun, 29 Oct 2023 21:41:56 +0000</updated>
                            <resolved>Tue, 1 Mar 2022 18:29:27 +0000</resolved>
                                                    <fixVersion>6.0.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="4382605" author="xgen-internal-githook" created="Tue, 1 Mar 2022 05:52:26 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Billy Donahue&apos;, &apos;email&apos;: &apos;billy.donahue@mongodb.com&apos;, &apos;username&apos;: &apos;BillyDonahue&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-64024&quot; title=&quot;fix race in tearDown of ThreadedOperationDeadlineTests&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-64024&quot;&gt;&lt;del&gt;SERVER-64024&lt;/del&gt;&lt;/a&gt; destroy the packaged_task on the thread it was created&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8c85963c5e8e6cec0ba996de80e3cc7aa5a6b39d&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8c85963c5e8e6cec0ba996de80e3cc7aa5a6b39d&lt;/a&gt;&lt;/p&gt;</comment>
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