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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-3913] MongoDB 2.0 crashes on Windows 7 x64</title>
                <link>https://jira.mongodb.org/browse/SERVER-3913</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;I have a big application that uses pymongo and when I tried out the new MongoDB 2.0 I found that MongoDB server crashes during tests (which are mostly complex integration/lifecycle tests with high concurrency). The crash is consistent is that it always happens during tests, but not always at the same test. This happens on my development Windows 7 x64 machine (with 64-bit MongoDB server), unfortunately I haven&apos;t had the time to test it on Linux (that is used in production), these crashes kind of halted the whole idea of an upgrade at the moment. &lt;img class=&quot;emoticon&quot; src=&quot;https://jira.mongodb.org/images/icons/emoticons/sad.png&quot; height=&quot;16&quot; width=&quot;16&quot; align=&quot;absmiddle&quot; alt=&quot;&quot; border=&quot;0&quot;/&gt;&lt;/p&gt;

&lt;p&gt;I finally managed to look at it a little closer yesterday, and here&apos;s what gets written on the console at the time of the crash:&lt;/p&gt;


&lt;p&gt;Mon Sep 19 16:56:00 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; connection accepted from 127.0.0.1:55254 #6&lt;br/&gt;
Mon Sep 19 16:56:00 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn6&amp;#93;&lt;/span&gt; dropDatabase app-tests-db&lt;br/&gt;
Mon Sep 19 16:56:01 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn6&amp;#93;&lt;/span&gt; removeJournalFiles&lt;br/&gt;
Mon Sep 19 16:56:01 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn6&amp;#93;&lt;/span&gt; command app-tests-db.$cmd command: &lt;/p&gt;
{ dropDatabase: 1 }
&lt;p&gt; ntoreturn:1 reslen:70 339ms&lt;br/&gt;
Mon Sep 19 16:56:01 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn5&amp;#93;&lt;/span&gt; build index app-tests-db.fs.chunks &lt;/p&gt;
{ _id: 1 }
&lt;p&gt;Mon Sep 19 16:56:01 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn5&amp;#93;&lt;/span&gt; build index done 0 records 0.001 secs&lt;br/&gt;
Mon Sep 19 16:56:01 &lt;span class=&quot;error&quot;&gt;&amp;#91;conn5&amp;#93;&lt;/span&gt; warning: best guess query plan requested, but scan and order are required for all plans  query: &lt;/p&gt;
{ files_id: ObjectId(&apos;4e773be038d36e1210000094&apos;) }
&lt;p&gt; order: &lt;/p&gt;
{ files_id: 1, n: 1 }
&lt;p&gt; choices: &lt;/p&gt;
{ $natural: 1 }
&lt;p&gt;unhandled windows exMon Sep 19 16:56:01 access violation&lt;br/&gt;
Mon Sep 19 16:56:18 &lt;span class=&quot;error&quot;&gt;&amp;#91;initandlisten&amp;#93;&lt;/span&gt; connection accepted from 127.0.0.1:55258 #7&lt;/p&gt;

&lt;p&gt;The warning is GridFS related, but I&apos;m not sure how relevant it is. Unfortunately minidump doesn&apos;t really help, because I don&apos;t have .pdb files for the server, and the only exported symbols are pcre-related, so stack trace is pretty useless:&lt;/p&gt;


&lt;p&gt;0:011&amp;gt; .ecxr&lt;br/&gt;
rax=0000000003bfde60 rbx=000000000044eba0 rcx=0000000000000000&lt;br/&gt;
rdx=00000000004b2640 rsi=0000000000000000 rdi=00000000004a48b0&lt;br/&gt;
rip=000000013f8e1871 rsp=0000000003bfdd70 rbp=0000000003bfde70&lt;br/&gt;
 r8=00000000007a9240  r9=00000000004b2640 r10=0000000003bfdd78&lt;br/&gt;
r11=00000000004b2640 r12=0000000000000000 r13=ffffffffffffffff&lt;br/&gt;
r14=0000000000000010 r15=0000000003bfe0d0&lt;br/&gt;
iopl=0         nv up ei pl nz na po nc&lt;br/&gt;
cs=0033  ss=002b  ds=002b  es=002b  fs=0053  gs=002b             efl=00010206&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;
	&lt;ul&gt;
		&lt;li&gt;
		&lt;ul&gt;
			&lt;li&gt;WARNING: Unable to verify checksum for mongod.exe&lt;/li&gt;
			&lt;li&gt;ERROR: Symbol file could not be found.  Defaulted to export symbols for mongod.exe -&lt;br/&gt;
mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x74a71:&lt;br/&gt;
00000001`3f8e1871 488b01          mov     rax,qword ptr &lt;span class=&quot;error&quot;&gt;&amp;#91;rcx&amp;#93;&lt;/span&gt; ds:00000000`00000000=????????????????&lt;br/&gt;
&lt;span class=&quot;error&quot;&gt;&amp;#91;...&amp;#93;&lt;/span&gt;&lt;br/&gt;
0:011&amp;gt; !analyze -v&lt;br/&gt;
&lt;span class=&quot;error&quot;&gt;&amp;#91;...&amp;#93;&lt;/span&gt;&lt;br/&gt;
STACK_TEXT:  &lt;br/&gt;
00000000`03bfdd70 00000001`3f9c66d7 : 00000000`00000004 00000000`00000004 00000000`03bfdfb8 00000000`03bfe6e0 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x74a71&lt;br/&gt;
00000000`03bfdee0 00000001`3f9cd397 : 00000000`00000001 00000000`00000001 00000000`03bfe6e0 00000000`03bfecb0 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x1598d7&lt;br/&gt;
00000000`03bfe2e0 00000001`3f9cd913 : 00000000`004ad640 00000000`004b45a5 00000000`03bfe750 00000000`004b6fa0 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x160597&lt;br/&gt;
00000000`03bfe5e0 00000001`3f9a669e : 00000000`00000204 00000000`004b3100 00000000`00000000 00000001`3fa615bf : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x160b13&lt;br/&gt;
00000000`03bfe800 00000001`3f9aa7f8 : 00000000`03bfecb0 00000000`00000000 00000000`004a95c0 00000000`03bfea98 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x13989e&lt;br/&gt;
00000000`03bfe890 00000001`3f94f6d3 : 00000000`03bff250 ffffffff`fffffffe 000077f4`f8e4395f 00000000`007a0230 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x13d9f8&lt;br/&gt;
00000000`03bff1d0 00000001`3f94fbb2 : 00000000`00000000 00000000`03bff769 00000000`03bff708 0000037f`00000003 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0xe28d3&lt;br/&gt;
00000000`03bff400 00000001`3fa20990 : 00000000`00000000 00000000`004b4570 00000000`004a3e20 00000000`00000000 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0xe2db2&lt;br/&gt;
00000000`03bff6d0 00000001`3f87e6e8 : 00000000`004a3e20 00000000`03bff848 00000000`004a3e20 00000000`00000000 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x1b3b90&lt;br/&gt;
00000000`03bff7d0 00000001`3fa4d5d1 : 00000000`00362320 00000000`00362320 00000000`00000000 00000000`00000000 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x118e8&lt;br/&gt;
00000000`03bff9c0 00000001`3fa6e5eb : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x1e07d1&lt;br/&gt;
00000000`03bffa00 00000001`3fa6e67f : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x2017eb&lt;br/&gt;
00000000`03bffa30 00000000`7757652d : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : mongod!pcrecpp::Arg::parse_ulonglong_cradix+0x20187f&lt;br/&gt;
00000000`03bffa60 00000000`77b1c521 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : kernel32!BaseThreadInitThunk+0xd&lt;br/&gt;
00000000`03bffa90 00000000`00000000 : 00000000`00000000 00000000`00000000 00000000`00000000 00000000`00000000 : ntdll!RtlUserThreadStart+0x1d&lt;/li&gt;
		&lt;/ul&gt;
		&lt;/li&gt;
	&lt;/ul&gt;
	&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Is there a way to get pdb files for the build, or maybe some other way to help you figure out what&apos;s crashing so hard?&lt;/p&gt;</description>
                <environment>Windows 7 x64</environment>
        <key id="22603">SERVER-3913</key>
            <summary>MongoDB 2.0 crashes on Windows 7 x64</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="sridhar">Sridhar Nanjundeswaran</assignee>
                                    <reporter username="snaury">Alexey Borzenkov</reporter>
                        <labels>
                    </labels>
                <created>Tue, 20 Sep 2011 19:06:03 +0000</created>
                <updated>Mon, 11 Jul 2016 18:33:29 +0000</updated>
                            <resolved>Fri, 23 Sep 2011 03:38:10 +0000</resolved>
                                    <version>2.0.0</version>
                                    <fixVersion>2.0.1</fixVersion>
                    <fixVersion>2.1.0</fixVersion>
                                    <component>Index Maintenance</component>
                    <component>Testing Infrastructure</component>
                                        <votes>0</votes>
                                    <watches>0</watches>
                                                                                                                <comments>
                            <comment id="56070" author="auto" created="Fri, 23 Sep 2011 03:38:29 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: fix crash in filemd5 without correct index &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3913&quot; title=&quot;MongoDB 2.0 crashes on Windows 7 x64&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3913&quot;&gt;&lt;del&gt;SERVER-3913&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: v2.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/2250ff90c53e486a21ee1f3f2a9de71fdd7743ca&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/2250ff90c53e486a21ee1f3f2a9de71fdd7743ca&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="56069" author="auto" created="Fri, 23 Sep 2011 03:38:02 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;erh&apos;, u&apos;name&apos;: u&apos;Eliot Horowitz&apos;, u&apos;email&apos;: u&apos;eliot@10gen.com&apos;}
&lt;p&gt;Message: fix crash in filemd5 without correct index &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3913&quot; title=&quot;MongoDB 2.0 crashes on Windows 7 x64&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3913&quot;&gt;&lt;del&gt;SERVER-3913&lt;/del&gt;&lt;/a&gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/68773c1816e297500c0727ea8037e5377550d171&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/68773c1816e297500c0727ea8037e5377550d171&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="56030" author="sridhar" created="Thu, 22 Sep 2011 21:42:01 +0000"  >&lt;p&gt;When the attached script is executed against 1.8.3 it throws the error &quot;best guess plan requested, but scan and order required: query: &lt;/p&gt;
{ files_id: 1.0 }
&lt;p&gt; order: &lt;/p&gt;
{ files_id:
1, n: 1 }
&lt;p&gt; choices: &lt;/p&gt;
{ $natural: 1 }
&lt;p&gt;&quot;. The database does not crash.&lt;br/&gt;
When run against 2.0 it crashes the server.&lt;br/&gt;
Note: If the index creation is uncommented it no longer crashes in either.&lt;/p&gt;</comment>
                            <comment id="55480" author="sridhar" created="Tue, 20 Sep 2011 21:54:10 +0000"  >&lt;p&gt;Would you be able to send us the test suite you are using to cause this. Also what options are you using to start mongod on your local test environment. Finally what version of pymongo are you using&lt;/p&gt;</comment>
                    </comments>
                <issuelinks>
                            <issuelinktype id="10010">
                    <name>Duplicate</name>
                                                                <inwardlinks description="is duplicated by">
                                        <issuelink>
            <issuekey id="26705">SERVER-4503</issuekey>
        </issuelink>
                            </inwardlinks>
                                    </issuelinktype>
                            <issuelinktype id="10012">
                    <name>Related</name>
                                            <outwardlinks description="related to">
                                                        </outwardlinks>
                                                                <inwardlinks description="is related to">
                                                        </inwardlinks>
                                    </issuelinktype>
                    </issuelinks>
                <attachments>
                            <attachment id="13256" name="SERVER3913.js" size="171" author="sridhar" created="Thu, 22 Sep 2011 21:42:01 +0000"/>
                    </attachments>
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