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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-22699] avoid taking a minidump when debugger is not present for breakpoint() on Windows</title>
                <link>https://jira.mongodb.org/browse/SERVER-22699</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When breakpoint() is called in a debug build (e.g. for an fassertFailedNoTrace), it calls DebugBreak() on Windows.  This throws an EXCEPTION_BREAKPOINT exception that is caught by a debugger if present.  If no debugger is present, the exception is caught by the top level handler and transfers control to our unhandled exception handler.  This handler prints a stack trace and begins a minidump.&lt;/p&gt;

&lt;p&gt;Meanwhile, if this is process is signaled to stop, another thread can start the shutdown process while the minidump is working.  For example, the process can be signaled to stop by a shell that has spawned the process and is waiting for a certain message to appear in the log as a result of triggering the fassert.  This thread can commonly hit an access violation or stack overflow error, and the exit status of the process reflects those HRESULTs.&lt;br/&gt;
This appears to be the issue in BF-1843 and others.&lt;/p&gt;</description>
                <environment></environment>
        <key id="266212">SERVER-22699</key>
            <summary>avoid taking a minidump when debugger is not present for breakpoint() on Windows</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="9">Done</resolution>
                                        <assignee username="milkie@mongodb.com">Eric Milkie</assignee>
                                    <reporter username="milkie@mongodb.com">Eric Milkie</reporter>
                        <labels>
                    </labels>
                <created>Wed, 17 Feb 2016 18:58:51 +0000</created>
                <updated>Mon, 22 Feb 2016 21:34:18 +0000</updated>
                            <resolved>Wed, 17 Feb 2016 20:47:36 +0000</resolved>
                                                    <fixVersion>3.3.2</fixVersion>
                                    <component>Internal Code</component>
                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                <comments>
                            <comment id="1176348" author="xgen-internal-githook" created="Wed, 17 Feb 2016 20:47:19 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;milkie&apos;, u&apos;name&apos;: u&apos;Eric Milkie&apos;, u&apos;email&apos;: u&apos;milkie@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-22699&quot; title=&quot;avoid taking a minidump when debugger is not present for breakpoint() on Windows&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-22699&quot;&gt;&lt;del&gt;SERVER-22699&lt;/del&gt;&lt;/a&gt; avoid taking a minidump when debugger is not present for breakpoint() on Windows&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f5fd9b3328cfa07c6a5d4f296bbaf6c3d0c3946b&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f5fd9b3328cfa07c6a5d4f296bbaf6c3d0c3946b&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1176222" author="milkie" created="Wed, 17 Feb 2016 19:47:18 +0000"  >&lt;p&gt;But fasserts already call std::abort(), which should trigger a minidump irrespective of having called breakpoint() (and it works in release builds too!).  I&apos;m more concerned about issues with fassertFailedNoTrace, which we use to abort the server but the reason is typically known, so we don&apos;t need to print a stack trace or dump the core.&lt;br/&gt;
I do notice that fassertFailedWithStatus() doesn&apos;t call abort, it calls quickExit, which is incorrect.  invariantOKFailed() is also incorrect.  But the others appear to be correct.&lt;/p&gt;</comment>
                            <comment id="1176209" author="mark.benvenuto" created="Wed, 17 Feb 2016 19:39:34 +0000"  >&lt;p&gt;The only way for me to understand failures in MemoryMappedFile::remapPrivateView which triggers a fassert is with a memory dump. See BF-1760 as an example.&lt;/p&gt;</comment>
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