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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-70604] decrease fork-exec window in jstest shell</title>
                <link>https://jira.mongodb.org/browse/SERVER-70604</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The are several &lt;a href=&quot;https://jira.mongodb.org/issues/?jql=project%20%3D%20BF%20AND%20status%20in%20(%22Needs%20Triage%22%2C%20Open%2C%20%22Waiting%20for%20bug%20fix%22%2C%20%22In%20Progress%22)%20AND%20text%20~%20%22clang%20coverage%22&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;coverage tickets&lt;/a&gt; that run into a tcmalloc locking race condition. Most likely this is from the &lt;a href=&quot;https://github.com/mongodb/mongo/blob/e180e7292c9310b449ac21c6e63254eb1be39407/src/mongo/shell/shell_utils_launcher.cpp#L803-L828&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;fork exec window here&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;More details can found in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-61860&quot; title=&quot;Death Test should exec after fork&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-61860&quot;&gt;&lt;del&gt;SERVER-61860&lt;/del&gt;&lt;/a&gt; which ran into the same issue (same stack trace) in the unittests. &lt;/p&gt;

&lt;p&gt;It&apos;s theorized the normal the jstest shell doesn&apos;t hit this case because the lock window is pretty small already, but with clang coverage the code execution is slower because the extra overhead from generated coverage calls. More details in &lt;a href=&quot;https://jira.mongodb.org/browse/BF-25861?focusedCommentId=4686317&amp;amp;page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-4686317&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;this comment&lt;/a&gt;.&lt;/p&gt;
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                <environment></environment>
        <key id="2160311">SERVER-70604</key>
            <summary>decrease fork-exec window in jstest shell</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="daniel.moody@mongodb.com">Daniel Moody</reporter>
                        <labels>
                    </labels>
                <created>Mon, 17 Oct 2022 13:52:17 +0000</created>
                <updated>Sun, 29 Oct 2023 21:31:51 +0000</updated>
                            <resolved>Fri, 11 Nov 2022 22:17:10 +0000</resolved>
                                                    <fixVersion>6.2.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="4975486" author="xgen-internal-githook" created="Fri, 11 Nov 2022 20:12:23 +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-70604&quot; title=&quot;decrease fork-exec window in jstest shell&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-70604&quot;&gt;&lt;del&gt;SERVER-70604&lt;/del&gt;&lt;/a&gt; Don&apos;t use tcmalloc for gcov variants&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/fded14a00f20ca0ec899a4a67cf64dc3a15a83e6&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/fded14a00f20ca0ec899a4a67cf64dc3a15a83e6&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="1941559">SERVER-61860</issuekey>
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