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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>
    </build-info>


<item>
            <title>[SERVER-44816] LogicalSessionCacheReap segfault</title>
                <link>https://jira.mongodb.org/browse/SERVER-44816</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I get these with regular frequency. Here is an example of a build where 2 out of 3 mongod segfaulted in this manner, causing the run to fail:&lt;/p&gt;

&lt;p&gt;&lt;a href=&quot;https://evergreen.mongodb.com/task/mongo_ruby_driver_zlib_auth__mongodb_version~4.2_topology~replica_set_auth_and_ssl~auth_and_ssl_ruby~ruby_2.6_os~rhel70_compressor~zlib_test_patch_8cf29a2bc69e3e6f6cba0dfe658c978f5dc7ef8d_5ddb5f752fbabe5e19531faf_19_11_25_04_58_30&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://evergreen.mongodb.com/task/mongo_ruby_driver_zlib_auth__mongodb_version~4.2_topology~replica_set_auth_and_ssl~auth_and_ssl_ruby~ruby_2.6_os~rhel70_compressor~zlib_test_patch_8cf29a2bc69e3e6f6cba0dfe658c978f5dc7ef8d_5ddb5f752fbabe5e19531faf_19_11_25_04_58_30&lt;/a&gt;&lt;/p&gt;

&lt;p&gt;What additional information do I need to provide? So far I don&apos;t know if there is a pattern to these segfaults.&lt;/p&gt;

&lt;p&gt;The crash stack (demangled with &lt;a href=&quot;http://kal-ubuntu1:3000/&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;MongoWatson&lt;/a&gt;) is:&lt;/p&gt;

&lt;p&gt;&#160;&lt;/p&gt;
&lt;div class=&apos;table-wrap&apos;&gt;
&lt;table class=&apos;confluenceTable&apos;&gt;&lt;tbody&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;0:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/util/stacktrace_posix.cpp#L174&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::printStackTrace(std::ostream&amp;amp;)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;1:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/util/signal_handlers_synchronous.cpp#L182&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::(anonymous namespace)::printSignalAndBacktrace(int)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;2:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/util/signal_handlers_synchronous.cpp#L281&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::(anonymous namespace)::abruptQuitWithAddrSignal(int, siginfo_t*, void*)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;3:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;??&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;4:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;std::_&lt;em&gt;shared_ptr_access&amp;lt;mongo::transport::Session, (&lt;/em&gt;_gnu_cxx::_Lock_policy)2, false, false&amp;gt;::_M_get() const&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;5:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/service_entry_point_common.cpp#L686&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;execCommandDatabase&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;6:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/service_entry_point_common.cpp#L1039&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;receivedCommands&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;7:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/service_entry_point_mongod.cpp#L262&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::ServiceEntryPointMongod::handleRequest(mongo::OperationContext*, mongo::Message const&amp;amp;)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;8:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/dbdirectclient.cpp#L147&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::(anonymous namespace)::loopbackBuildResponse(mongo::OperationContext*, mongo::LastError*, mongo::Message&amp;amp;)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;9:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/dbdirectclient.cpp#L152&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::DBDirectClient::call(mongo::Message&amp;amp;, mongo::Message&amp;amp;, bool, std::__cxx11::basic_string&amp;lt;char, std::char_traits&amp;lt;char&amp;gt;, std::allocator&amp;lt;char&amp;gt; &amp;gt;*)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;10:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/client/dbclient_cursor.cpp#L184&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::DBClientCursor::init()&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;11:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/client/dbclient_base.cpp#L680&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::DBClientBase::query(mongo::NamespaceStringOrUUID const&amp;amp;, mongo::Query, int, int, mongo::BSONObj const*, int, int)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;12:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/dbdirectclient.cpp#L172&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::DBDirectClient::query(mongo::NamespaceStringOrUUID const&amp;amp;, mongo::Query, int, int, mongo::BSONObj const*, int, int)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;13:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/session_catalog_mongod.cpp#L377&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::MongoDSessionCatalog::reapSessionsOlderThan(mongo::OperationContext*, mongo::SessionsCollection&amp;amp;, mongo::Date_t)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;14:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/util/functional.h#L109&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::unique_function&amp;lt;int (mongo::OperationContext*, mongo::SessionsCollection&amp;amp;, mongo::Date_t)&amp;gt;::operator()(mongo::OperationContext*, mongo::SessionsCollection&amp;amp;, mongo::Date_t) const&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;15:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;&lt;a href=&quot;https://github.com/mongodb/mongo/blob/edf6d45851c0b9ee15548f0f847df141764a317e/src/mongo/db/logical_session_cache_impl.cpp#L132&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;mongo::LogicalSessionCacheImpl::_periodicReap(mongo::Client*)&lt;/a&gt;&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;16:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;std::function&amp;lt;void (mongo::Client*)&amp;gt;::operator()(mongo::Client*) const&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;17:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;execute_native_thread_routine&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;18:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;??&lt;/td&gt;
&lt;/tr&gt;
&lt;tr&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;19:&lt;/td&gt;
&lt;td class=&apos;confluenceTd&apos;&gt;??&lt;/td&gt;
&lt;/tr&gt;
&lt;/tbody&gt;&lt;/table&gt;
&lt;/div&gt;
</description>
                <environment></environment>
        <key id="1023872">SERVER-44816</key>
            <summary>LogicalSessionCacheReap segfault</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="dmitry.agranat@mongodb.com">Dmitry Agranat</assignee>
                                    <reporter username="oleg.pudeyev@mongodb.com">Oleg Pudeyev</reporter>
                        <labels>
                    </labels>
                <created>Mon, 25 Nov 2019 07:18:48 +0000</created>
                <updated>Tue, 10 Dec 2019 12:09:10 +0000</updated>
                            <resolved>Tue, 10 Dec 2019 12:09:10 +0000</resolved>
                                    <version>4.2.1</version>
                                                                        <votes>0</votes>
                                    <watches>5</watches>
                                                                                                                    <issuelinks>
                            <issuelinktype id="10011">
                    <name>Depends</name>
                                            <outwardlinks description="depends on">
                                        <issuelink>
            <issuekey id="911304">SERVER-43079</issuekey>
        </issuelink>
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