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    <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-50594] [SBE] Fix bool/int32_t issue on big-endian systems</title>
                <link>https://jira.mongodb.org/browse/SERVER-50594</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;In various places in the codebase, we store bool&apos;s and int32_t&apos;s inside sbe::value::Value&apos;s and retrieve bool&apos;s / int32_t&apos;s from sbe::value::Value&apos;s in different ways, and this is causing problems on big endian systems like s390x. For an example of where we&apos;ve been bitten by this, see&#160;&lt;a href=&quot;https://jira.mongodb.org/browse/BF-18537&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/BF-18537&lt;/a&gt;&#160;.&lt;/p&gt;

&lt;p&gt;First, we need to decide on the encoding we want to use when storing a bool or an int32_t into an sbe::value::Value, both for little-endian systems and for big-endian systems. Based on that decision, we can then identify which places in the code are storing/retrieving bool&apos;s and int32_t&apos;s correctly and which places in the code are&#160;storing/retrieving bool&apos;s and int32_t&apos;s incorrectly. Finally, we can identify the pitfalls that exist where developers might accidentally use the wrong ways to store/retrieve bool&apos;s and int32_t&apos;s, and what we can do to make it harder for developers to accidentally make these mistakes.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1454680">SERVER-50594</key>
            <summary>[SBE] Fix bool/int32_t issue on big-endian systems</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="andrew.paroski@mongodb.com">Drew Paroski</assignee>
                                    <reporter username="andrew.paroski@mongodb.com">Drew Paroski</reporter>
                        <labels>
                            <label>qexec-team</label>
                    </labels>
                <created>Thu, 27 Aug 2020 18:12:45 +0000</created>
                <updated>Sun, 29 Oct 2023 22:03:54 +0000</updated>
                            <resolved>Thu, 8 Oct 2020 15:28:56 +0000</resolved>
                                                    <fixVersion>4.9.0</fixVersion>
                                    <component>Querying</component>
                                        <votes>0</votes>
                                    <watches>3</watches>
                                                                                                                <comments>
                            <comment id="3433886" author="xgen-internal-githook" created="Thu, 8 Oct 2020 09:54:56 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Drew Paroski&apos;, &apos;email&apos;: &apos;drew.paroski@mongodb.com&apos;, &apos;username&apos;: &apos;paroski&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50594&quot; title=&quot;[SBE] Fix bool/int32_t issue on big-endian systems&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50594&quot;&gt;&lt;del&gt;SERVER-50594&lt;/del&gt;&lt;/a&gt; &lt;span class=&quot;error&quot;&gt;&amp;#91;SBE&amp;#93;&lt;/span&gt; Fix bool/int32_t issue on big-endian systems&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/013c3f1bed2d31995bb1ca041b41b27496e0b1a7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/013c3f1bed2d31995bb1ca041b41b27496e0b1a7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="3388103" author="david.storch" created="Fri, 11 Sep 2020 19:32:15 +0000"  >&lt;p&gt;I already reverted the changes from &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50591&quot; title=&quot;Temporarily disable a few tests in the jsCore_slot_based_execution suite&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50591&quot;&gt;&lt;del&gt;SERVER-50591&lt;/del&gt;&lt;/a&gt; as part of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50893&quot; title=&quot;[SBE] Temporarily disable core_sbe and aggregation_sbe suites on s390x build variants&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50893&quot;&gt;&lt;del&gt;SERVER-50893&lt;/del&gt;&lt;/a&gt;. As of &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-50893&quot; title=&quot;[SBE] Temporarily disable core_sbe and aggregation_sbe suites on s390x build variants&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-50893&quot;&gt;&lt;del&gt;SERVER-50893&lt;/del&gt;&lt;/a&gt;, the &lt;tt&gt;core_sbe&lt;/tt&gt; and &lt;tt&gt;aggregation_sbe&lt;/tt&gt; suites are no longer running on s390x build variants. As part of the work for this ticket, we should modify evergreen.yml in order to start once again running the SBE suites on s390x.&lt;/p&gt;</comment>
                    </comments>
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            <issuekey id="1670613">SERVER-55777</issuekey>
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