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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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            <title>[SERVER-77772] ASAN crashes on 5.0 with v3 clang</title>
                <link>https://jira.mongodb.org/browse/SERVER-77772</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;It appears there was some bug in our v3 clang ASAN which prevents this from happening: &lt;a href=&quot;https://github.com/llvm/llvm-project/issues/55785&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/llvm/llvm-project/issues/55785&lt;/a&gt;. It seems related to this GCC bug: &lt;a href=&quot;https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100114&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100114&lt;/a&gt;.&lt;/p&gt;

&lt;p&gt;The GCC bug was fixed and backported and the fix exists in our v3 gcc but not v3 clang. V4 clang has similar changes that represent the fix. Possibly we could backport some fix. &lt;/p&gt;

&lt;p&gt;The workaround is use_sigaltstack=false in ASAN_OPTIONS.&lt;/p&gt;</description>
                <environment></environment>
        <key id="2357680">SERVER-77772</key>
            <summary>ASAN crashes on 5.0 with v3 clang</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="2">Won&apos;t Fix</resolution>
                                        <assignee username="backlog-server-devplatform">[DO NOT ASSIGN] Backlog - Server Development Platform Team (SDP)</assignee>
                                    <reporter username="daniel.moody@mongodb.com">Daniel Moody</reporter>
                        <labels>
                    </labels>
                <created>Fri, 2 Jun 2023 21:40:24 +0000</created>
                <updated>Tue, 6 Jun 2023 19:25:25 +0000</updated>
                            <resolved>Tue, 6 Jun 2023 19:25:25 +0000</resolved>
                                                                                        <votes>0</votes>
                                    <watches>4</watches>
                                                                                                                <comments>
                            <comment id="5479200" author="JIRAUSER1268551" created="Tue, 6 Jun 2023 19:25:25 +0000"  >&lt;p&gt;This is a real bug but the workaround is simple enough that I don&apos;t think we are going to go through the work or backporting and creating a new toolchain for this.&lt;/p&gt;</comment>
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                            <customfieldvalue>&lt;p&gt;git checkout v5.0&lt;br/&gt;
/buildscripts/scons.py --variables-files=etc/scons/mongodbtoolchain_stable_clang.vars --ninja generate-ninja ICECC=icecc CCACHE=ccache --modules=&quot;&quot; --dbg=on --opt=off --link-model=dynamic --sanitize=address --allocator=system NINJA_PREFIX=asan VARIANT_DIR=asandebug&lt;br/&gt;
ninja -f asan.ninja -j400 +executor_test&lt;/p&gt;</customfieldvalue>

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