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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-6538] Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker</title>
                <link>https://jira.mongodb.org/browse/SERVER-6538</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Fri Jul 20 16:22:32 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; connection accepted from 192.168.130.17:5972 #402 (10 connections now open)&lt;br/&gt;
Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;br/&gt;
Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;


&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Got signal: 11 (Segmentation fault).&lt;/p&gt;

&lt;p&gt;Fri Jul 20 16:22:44 Backtrace:&lt;br/&gt;
0x6236d1 0x5516b9 0x551c42 0x7f2f34ae4cb0 0x7f2f33e4d672 0xb0723d 0x7f12bf 0xb03846 0xb04acd 0x91e56a 0x5db6cd 0x969799 0x7f2f34adce9a 0x7f2f33df24bd&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo15printStackTraceERSo+0x21) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x6236d1&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo10abruptQuitEi+0x399) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x5516b9&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo24abruptQuitWithAddrSignalEiP7siginfoPv+0x262) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x551c42&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /lib/x86_64-linux-gnu/libpthread.so.0(+0xfcb0) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f2f34ae4cb0&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /lib/x86_64-linux-gnu/libc.so.6(+0x14d672) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f2f33e4d672&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZNK5mongo9IndexSpec7getKeysERKNS_7BSONObjERSt3setIS1_NS_10BSONObjCmpESaIS1_EE+0x13d) &lt;span class=&quot;error&quot;&gt;&amp;#91;0xb0723d&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo19fetchIndexInsertersERSt3setINS_7BSONObjENS_10BSONObjCmpESaIS1_EERNS_14IndexInterface13IndexInserterEPNS_16NamespaceDetail&lt;br/&gt;
sEiRKS1_NS_7DiskLocE+0x4f) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f12bf&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo18prefetchIndexPagesEPNS_16NamespaceDetailsERKNS_7BSONObjE+0xd6) &lt;span class=&quot;error&quot;&gt;&amp;#91;0xb03846&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo28prefetchPagesForReplicatedOpERKNS_7BSONObjE+0x2dd) &lt;span class=&quot;error&quot;&gt;&amp;#91;0xb04acd&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo7replset8SyncTail10prefetchOpERKNS_7BSONObjE+0x13a) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x91e56a&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod(_ZN5mongo10threadpool6Worker4loopEv+0x26d) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x5db6cd&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /home/mongo/.bin/mongod() &lt;span class=&quot;error&quot;&gt;&amp;#91;0x969799&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /lib/x86_64-linux-gnu/libpthread.so.0(+0x7e9a) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f2f34adce9a&amp;#93;&lt;/span&gt;&lt;br/&gt;
 /lib/x86_64-linux-gnu/libc.so.6(clone+0x6d) &lt;span class=&quot;error&quot;&gt;&amp;#91;0x7f2f33df24bd&amp;#93;&lt;/span&gt;&lt;/p&gt;</description>
                <environment>Ubuntu 12.04 LTS&lt;br/&gt;
Linux yz-uc-core-a08 3.2.0-23-generic #36-Ubuntu SMP Tue Apr 10 20:39:51 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux</environment>
        <key id="44911">SERVER-6538</key>
            <summary>Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</type>
                                            <priority id="2" iconUrl="https://jira.mongodb.org/images/icons/priorities/critical.svg">Critical - P2</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="aaron">Aaron Staple</assignee>
                                    <reporter username="xjtyfq">NOVALUE yangfenqiang</reporter>
                        <labels>
                            <label>crash</label>
                    </labels>
                <created>Fri, 20 Jul 2012 09:59:51 +0000</created>
                <updated>Mon, 11 Jul 2016 17:58:52 +0000</updated>
                            <resolved>Wed, 1 Aug 2012 21:08:14 +0000</resolved>
                                    <version>2.2.0-rc0</version>
                                    <fixVersion>2.2.0-rc1</fixVersion>
                                    <component>Stability</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="150026" author="auto" created="Thu, 2 Aug 2012 20:19:42 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;date&apos;: u&apos;2012-08-02T10:48:10-07:00&apos;, u&apos;email&apos;: u&apos;aaron@10gen.com&apos;, u&apos;name&apos;: u&apos;Aaron&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6538&quot; title=&quot;Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6538&quot;&gt;&lt;del&gt;SERVER-6538&lt;/del&gt;&lt;/a&gt; Add a replica set prefetch key generation stress test.&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/910d0198d28f164b7d326a121c012e945aec8953&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/910d0198d28f164b7d326a121c012e945aec8953&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="149124" author="auto" created="Tue, 31 Jul 2012 17:24:34 +0000"  >&lt;p&gt;@aaron i confirmed that the size tracker is being invoked by the prefetcher. and then made the change below.&lt;/p&gt;

&lt;p&gt;Author:&lt;/p&gt;
{u&apos;date&apos;: u&apos;2012-07-31T10:24:28-07:00&apos;, u&apos;email&apos;: u&apos;dwight@10gen.com&apos;, u&apos;name&apos;: u&apos;Dwight&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6538&quot; title=&quot;Invalid access at address: 0x7f2e34021000 from thread: repl prefetch worker&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6538&quot;&gt;&lt;del&gt;SERVER-6538&lt;/del&gt;&lt;/a&gt; make BSONSizeTracker threadsafe&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/bb2b218b02b60e03ddd3487f7bf159497645f7e9&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/bb2b218b02b60e03ddd3487f7bf159497645f7e9&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="145247" author="xjtyfq" created="Fri, 20 Jul 2012 10:10:39 +0000"  >&lt;p&gt;this mongod crashed. lead mongos crashed too. see &quot;&lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-6539&quot; title=&quot;Mongos crashed because of mongod cannot reach.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-6539&quot;&gt;&lt;del&gt;SERVER-6539&lt;/del&gt;&lt;/a&gt;&quot;&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="45329">SERVER-6585</issuekey>
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            <issuekey id="44913">SERVER-6539</issuekey>
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