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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-47880] Send SIGSTOP to all processes before attaching to any</title>
                <link>https://jira.mongodb.org/browse/SERVER-47880</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We can prevent processes from getting unstuck when the hang analyzer attaches to them by sending SIGSTOP to all of them first. Commands that run in process threads should still work if we use these commands:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;(gdb) handle SIGSTOP ignore&lt;/span&gt;&lt;/pre&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;(gdb) handle SIGSTOP noprint&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;</description>
                <environment></environment>
        <key id="1335771">SERVER-47880</key>
            <summary>Send SIGSTOP to all processes before attaching to any</summary>
                <type id="3" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14718&amp;avatarType=issuetype">Task</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="mikhail.shchatko@mongodb.com">Mikhail Shchatko</assignee>
                                    <reporter username="carl.worley@mongodb.com">Raiden Worley</reporter>
                        <labels>
                    </labels>
                <created>Fri, 1 May 2020 14:36:43 +0000</created>
                <updated>Sun, 29 Oct 2023 22:08:49 +0000</updated>
                            <resolved>Fri, 19 Jun 2020 06:36:23 +0000</resolved>
                                                    <fixVersion>4.7.0</fixVersion>
                                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="3215566" author="xgen-internal-githook" created="Fri, 19 Jun 2020 06:29:49 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Mikhail Shchatko&apos;, &apos;email&apos;: &apos;mikhail.shchatko@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-47880&quot; title=&quot;Send SIGSTOP to all processes before attaching to any&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-47880&quot;&gt;&lt;del&gt;SERVER-47880&lt;/del&gt;&lt;/a&gt; Send SIGSTOP to all processes before attaching to any&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/412a1169bc51d40ea8b54b4118f9c9679e3dd315&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/412a1169bc51d40ea8b54b4118f9c9679e3dd315&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3064475" author="carl.worley" created="Fri, 1 May 2020 14:47:37 +0000"  >&lt;p&gt;Should also keep in mind &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-47755&quot; title=&quot;Send SIGABRT as a fallback in the hang analyzer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-47755&quot;&gt;&lt;del&gt;SERVER-47755&lt;/del&gt;&lt;/a&gt; and how the SIGSTOPs would affect the handling of SIGABRT in the signal handler thread.&lt;/p&gt;</comment>
                            <comment id="3064454" author="carl.worley" created="Fri, 1 May 2020 14:37:29 +0000"  >&lt;p&gt;We had discussed this in the comments of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46693&quot; title=&quot;Parallelize debugger processes in hang-analyzer&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46693&quot;&gt;&lt;del&gt;SERVER-46693&lt;/del&gt;&lt;/a&gt; and were considering doing it as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-46682&quot; title=&quot;Reuse debugger process for processes of same type in hang_analyzer.py&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-46682&quot;&gt;&lt;del&gt;SERVER-46682&lt;/del&gt;&lt;/a&gt;, but since that latter ticket is going to be pretty involved I figured it makes sense to file a separate ticket.&lt;/p&gt;</comment>
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