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    <title>MongoDB Jira</title>
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    <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-65772] Use of BufReader in HashLookupStage isn&apos;t compatible with s390x architecture</title>
                <link>https://jira.mongodb.org/browse/SERVER-65772</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;When HashLookupStage::readIndicesFromRecordStore() reads from the buffer the number of stored records, instead of 1 it gets back value 2^56 which leads to OOM on attempting to allocated a vector of this huge size.&lt;/p&gt;

&lt;p&gt;Found by: &lt;a href=&quot;https://jira.mongodb.org/browse/BF-24912&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/BF-24912&lt;/a&gt;&lt;/p&gt;</description>
                <environment></environment>
        <key id="2027652">SERVER-65772</key>
            <summary>Use of BufReader in HashLookupStage isn&apos;t compatible with s390x architecture</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="13201">Fixed</resolution>
                                        <assignee username="irina.yatsenko@mongodb.com">Irina Yatsenko</assignee>
                                    <reporter username="irina.yatsenko@mongodb.com">Irina Yatsenko</reporter>
                        <labels>
                    </labels>
                <created>Tue, 19 Apr 2022 04:49:40 +0000</created>
                <updated>Sun, 29 Oct 2023 21:39:18 +0000</updated>
                            <resolved>Thu, 21 Apr 2022 15:39:46 +0000</resolved>
                                                    <fixVersion>6.0.0-rc2</fixVersion>
                    <fixVersion>6.1.0-rc0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>6</watches>
                                                                                                                <comments>
                            <comment id="4497962" author="xgen-internal-githook" created="Thu, 21 Apr 2022 18:32:16 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Irina Yatsenko&apos;, &apos;email&apos;: &apos;irina.yatsenko@mongodb.com&apos;, &apos;username&apos;: &apos;IrinaYatsenko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65772&quot; title=&quot;Use of BufReader in HashLookupStage isn&amp;#39;t compatible with s390x architecture&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65772&quot;&gt;&lt;del&gt;SERVER-65772&lt;/del&gt;&lt;/a&gt;: Use consistent endinaness when (de)serializing during spilling in hash lookup&lt;/p&gt;

&lt;p&gt;(cherry picked from commit f549d223638fb7ac304514cd73ca94250c93f5fa)&lt;br/&gt;
Branch: v6.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/8b954eecbd5560075d21ff2243e5c1514f9a69e2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/8b954eecbd5560075d21ff2243e5c1514f9a69e2&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="4496080" author="xgen-internal-githook" created="Thu, 21 Apr 2022 02:30:01 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Irina Yatsenko&apos;, &apos;email&apos;: &apos;irina.yatsenko@mongodb.com&apos;, &apos;username&apos;: &apos;IrinaYatsenko&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-65772&quot; title=&quot;Use of BufReader in HashLookupStage isn&amp;#39;t compatible with s390x architecture&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-65772&quot;&gt;&lt;del&gt;SERVER-65772&lt;/del&gt;&lt;/a&gt;: Use consistent endinaness when (de)serializing during spilling in hash lookup&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/f549d223638fb7ac304514cd73ca94250c93f5fa&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/f549d223638fb7ac304514cd73ca94250c93f5fa&lt;/a&gt;&lt;/p&gt;</comment>
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