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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-9329] Invalid access at address - Segmentation fault</title>
                <link>https://jira.mongodb.org/browse/SERVER-9329</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;We&apos;re seeing Seg Faults when under high load. The first time this happened was when we were loading data from one collection to another. This caused the primary to crash and by the time we caught it had gotten too far behind the oplog on the other servers in the replica set. So, we dropped everything in the data dir and allowed it to resync. Now we&apos;re seeing the same &quot;Invalid access at address&quot; during the resync.&lt;/p&gt;

&lt;p&gt;The log file shows:&lt;br/&gt;
Wed Apr 10 14:17:13.529 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn8&amp;#93;&lt;/span&gt;  authenticate db: apm &lt;/p&gt;
{ authenticate: 1, user: &quot;apmui&quot;, nonce: &quot;ccb12593a3cab52a&quot;, key: &quot;58f35b791cc2537221649704a50caee6&quot; }
&lt;p&gt;Wed Apr 10 14:17:13.529 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn9&amp;#93;&lt;/span&gt;  authenticate db: apm &lt;/p&gt;
{ authenticate: 1, user: &quot;apmui&quot;, nonce: &quot;ccb12593a3cab52a&quot;, key: &quot;58f35b791cc2537221649704a50caee6&quot; }
&lt;p&gt;Wed Apr 10 14:17:13.529 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn8&amp;#93;&lt;/span&gt; auth: couldn&apos;t find user apmui@apm, apm.system.users&lt;br/&gt;
Wed Apr 10 14:17:13.529 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn9&amp;#93;&lt;/span&gt; auth: couldn&apos;t find user apmui@apm, apm.system.users&lt;br/&gt;
Wed Apr 10 14:17:18.559 Wed Apr 10 14:17:18.559 Invalid access at address: 0x7f5de016fff0 from thread: conn9&lt;br/&gt;
Invalid access at address: 0x7f5de0371ff0 from thread: conn8&lt;/p&gt;


&lt;p&gt;Wed Apr 10 14:17:18.586 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Wed Apr 10 14:17:18.586 Got signal: 11 (Segmentation fault).&lt;/p&gt;
</description>
                <environment>Ubuntu 12.04.02, 48 Gb RAM, dedicated server.</environment>
        <key id="71505">SERVER-9329</key>
            <summary>Invalid access at address - Segmentation fault</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="3">Duplicate</resolution>
                                        <assignee username="schwerin@mongodb.com">Andy Schwerin</assignee>
                                    <reporter username="bmiller@bloomenergy.com">Brent Miller</reporter>
                        <labels>
                    </labels>
                <created>Thu, 11 Apr 2013 16:11:52 +0000</created>
                <updated>Thu, 5 Mar 2015 22:43:04 +0000</updated>
                            <resolved>Mon, 15 Apr 2013 18:54:20 +0000</resolved>
                                    <version>2.4.1</version>
                                                    <component>Stability</component>
                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="313906" author="schwerin" created="Mon, 15 Apr 2013 18:54:20 +0000"  >&lt;p&gt;Duplicate of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9014&quot; title=&quot;Mongod and mongos crash induced by many concurrent invocations of the getnonce command.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9014&quot;&gt;&lt;del&gt;SERVER-9014&lt;/del&gt;&lt;/a&gt;.&lt;/p&gt;</comment>
                            <comment id="313866" author="bmiller@bloomenergy.com" created="Mon, 15 Apr 2013 17:59:16 +0000"  >&lt;p&gt;We upgraded to 2.4.2-rc0 over the weekend and have been unable to reproduce the seg fault. Looks like &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9014&quot; title=&quot;Mongod and mongos crash induced by many concurrent invocations of the getnonce command.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9014&quot;&gt;&lt;del&gt;SERVER-9014&lt;/del&gt;&lt;/a&gt; was indeed the culprit.&lt;/p&gt;

&lt;p&gt;Thanks for the help.&lt;/p&gt;</comment>
                            <comment id="311957" author="schwerin" created="Fri, 12 Apr 2013 14:20:15 +0000"  >&lt;p&gt;Thanks for the report.  From MMS, I notice that over the last day your server has been accepting on average 3 new connections per second.  If this is typical, you may be experiencing &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-9014&quot; title=&quot;Mongod and mongos crash induced by many concurrent invocations of the getnonce command.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-9014&quot;&gt;&lt;del&gt;SERVER-9014&lt;/del&gt;&lt;/a&gt;, which is resolved in 2.4.2-rc0.  Can you re-test with the release candidate, to see if this resolves your issue?  The release candidate is available on the downloads page at mongodb.org.&lt;/p&gt;</comment>
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