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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-48337] Fix failing death tests with TSAN</title>
                <link>https://jira.mongodb.org/browse/SERVER-48337</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48280&quot; title=&quot;Add a TSAN + Biggie build variant&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48280&quot;&gt;&lt;del&gt;SERVER-48280&lt;/del&gt;&lt;/a&gt;, we created a new build that runs TSAN on Ubuntu 20.04, and (many? all?) death tests are failing in an unexpected way, causing test failures. These tests are &lt;b&gt;supposed&lt;/b&gt; to cause aborts, so we need to find out why the tests are failing and fix them.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1357650">SERVER-48337</key>
            <summary>Fix failing death tests with TSAN</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="ryan.egesdahl@mongodb.com">Ryan Egesdahl</assignee>
                                    <reporter username="ryan.egesdahl@mongodb.com">Ryan Egesdahl</reporter>
                        <labels>
                            <label>thread-sanitizer</label>
                    </labels>
                <created>Wed, 20 May 2020 19:58:16 +0000</created>
                <updated>Sun, 29 Oct 2023 22:07:56 +0000</updated>
                            <resolved>Thu, 28 May 2020 00:13:59 +0000</resolved>
                                    <version>4.5 Desired</version>
                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Build</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3133067" author="xgen-internal-githook" created="Wed, 27 May 2020 23:48:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Ryan Egesdahl&apos;, &apos;email&apos;: &apos;ryan.egesdahl@mongodb.com&apos;, &apos;username&apos;: &apos;deriamis&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-48337&quot; title=&quot;Fix failing death tests with TSAN&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48337&quot;&gt;&lt;del&gt;SERVER-48337&lt;/del&gt;&lt;/a&gt; Fix death tests with TSAN&lt;/p&gt;

&lt;p&gt;Fix death tests running under ThreadSanitizer. Death tests were causing&lt;br/&gt;
TSAN to emit a signal report, which is a false positive. The signal&lt;br/&gt;
report was then causing the expected failure message to not be parsed as&lt;br/&gt;
JSON. TSAN ignal reports will be suppressed for all death tests.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/e476c8ff9c2133a496f04d4708656cc3f07ff552&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/e476c8ff9c2133a496f04d4708656cc3f07ff552&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3119581" author="ryan.egesdahl" created="Wed, 27 May 2020 05:41:42 +0000"  >&lt;p&gt;Problem found. It looks like the death tests have to examine the output of the server when it dies, and it&apos;s expecting JSON. Unfortunately, TSAN is spitting out its output first, and that&apos;s messing with the output parsing. I think the best way to handle this is to add signal reports from death_test.cpp to the suppression list so we still get any other failure types. I&apos;m testing this now.&lt;/p&gt;</comment>
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