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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-48597] Fix stack trace unit tests with TSAN</title>
                <link>https://jira.mongodb.org/browse/SERVER-48597</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Stack trace tests are failing with TSAN, but they are not reporting any stack traces. This is likely because there are stack traces being produced by some failure that TSAN is intercepting, which means that the test harness is not parsing output that it&apos;s expecting. A similar thing happened with the death tests as well. We should find out why those tests are failing and add appropriate suppressions or otherwise fix the way the tests parse output to get them passing with TSAN.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1372515">SERVER-48597</key>
            <summary>Fix stack trace unit tests with TSAN</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="ryan.egesdahl@mongodb.com">Ryan Egesdahl</assignee>
                                    <reporter username="ryan.egesdahl@mongodb.com">Ryan Egesdahl</reporter>
                        <labels>
                    </labels>
                <created>Thu, 4 Jun 2020 18:20:13 +0000</created>
                <updated>Sun, 29 Oct 2023 22:07:24 +0000</updated>
                            <resolved>Thu, 11 Jun 2020 16:14:38 +0000</resolved>
                                    <version>4.5 Desired</version>
                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="3205382" author="xgen-internal-githook" created="Thu, 11 Jun 2020 15:56:56 +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-48597&quot; title=&quot;Fix stack trace unit tests with TSAN&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-48597&quot;&gt;&lt;del&gt;SERVER-48597&lt;/del&gt;&lt;/a&gt; Fix stack trace unit tests with TSAN&lt;/p&gt;

&lt;p&gt;Stack trace unit tests were failing with TSAN due to the mechanisms and&lt;br/&gt;
assumptions of the tests. In one case, we simulate a real failure and do&lt;br/&gt;
some thread necromancy to recover from it, which was causing TSAN to&lt;br/&gt;
segfault immediately. In another two, we rely on a feature that makes&lt;br/&gt;
some assumptions about which threads are running and what signals they&lt;br/&gt;
can receive, which TSAN&apos;s internal threads violate. These tests and&lt;br/&gt;
features are disabled with TSAN for now so we can run further tests with&lt;br/&gt;
TSAN.&lt;/p&gt;

&lt;p&gt;Separately, one of the tests was failing with a complaint from TSAN that&lt;br/&gt;
errno was being stomped on. That is also addressed.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c7115a2c310b1645f6268007e3d458300dab6b54&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c7115a2c310b1645f6268007e3d458300dab6b54&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3192723" author="ryan.egesdahl" created="Fri, 5 Jun 2020 16:52:52 +0000"  >&lt;p&gt;Turns out the problem had absolutely nothing to do with parsing output. The problem is that we&apos;re making some assumptions about the threads that are alive and which signals they receive, which TSAN is upsetting because it runs some internal threads. We&apos;ll address those problems later, but for now we can just omit these tests.&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
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                                            <outwardlinks description="related to">
                                        <issuelink>
            <issuekey id="1377234">SERVER-48696</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="1373742">SERVER-48622</issuekey>
        </issuelink>
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