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<channel>
    <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-32170] tcmalloc segfault at time of first swap usage</title>
                <link>https://jira.mongodb.org/browse/SERVER-32170</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;Whilst a shard mongod node was running it suddenly crashed with the following &lt;em&gt;&quot;Invalid access at address: 0&quot;&lt;/em&gt; message in the log:&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
		&lt;tbody &gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.078+0000 I NETWORK  [initandlisten] connection accepted from 127.0.0.1:57502 #2568005 (319 connections now open)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.078+0000 I NETWORK  [conn2568005] AssertionException handling request, closing client connection: 17132 SSL handshake received but server is started without SSL support&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.117+0000 F -        [thread1] Invalid access at address: 0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.175+0000 F -        [thread1] Got signal: 11 (Segmentation fault).&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&amp;nbsp;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; 0x1352122 0x1351279 0x13515f8 0x7f087a3c8100 0x143cf93 0x143d06d 0x1bb3ee0 0x19ffac9 0x1a670ec 0x1a61aea 0x1a62047 0x1a638ca 0x1acbf96 0x7f087a3c0dc5 0x7f087a0ee21d&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;----- BEGIN BACKTRACE -----&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;{&quot;backtrace&quot;:[{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;F52122&quot;,&quot;s&quot;:&quot;_ZN5mongo15printStackTraceERSo&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;F51279&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;F515F8&quot;},{&quot;b&quot;:&quot;7F087A3B9000&quot;,&quot;o&quot;:&quot;F100&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;103CF93&quot;,&quot;s&quot;:&quot;_ZN8tcmalloc11ThreadCache21ReleaseToCentralCacheEPNS0_8FreeListEmi&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;103D06D&quot;,&quot;s&quot;:&quot;_ZN8tcmalloc11ThreadCache11ListTooLongEPNS0_8FreeListEm&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;17B3EE0&quot;,&quot;s&quot;:&quot;free&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;15FFAC9&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;16670EC&quot;,&quot;s&quot;:&quot;__wt_evict&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;1661AEA&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;1662047&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;16638CA&quot;,&quot;s&quot;:&quot;__wt_evict_thread_run&quot;},{&quot;b&quot;:&quot;400000&quot;,&quot;o&quot;:&quot;16CBF96&quot;,&quot;s&quot;:&quot;__wt_thread_run&quot;},{&quot;b&quot;:&quot;7F087A3B9000&quot;,&quot;o&quot;:&quot;7DC5&quot;},{&quot;b&quot;:&quot;7F0879FF8000&quot;,&quot;o&quot;:&quot;F621D&quot;,&quot;s&quot;:&quot;clone&quot;}],&quot;processInfo&quot;:{ &quot;mongodbVersion&quot; : &quot;3.2.16&quot;, &quot;gitVersion&quot; : &quot;056bf45128114e44c5358c7a8776fb582363e094&quot;, &quot;compiledModules&quot; : [], &quot;uname&quot; : { &quot;sysname&quot; : &quot;Linux&quot;, &quot;release&quot; : &quot;3.10.0-327.el7.x86_64&quot;, &quot;version&quot; : &quot;#1 SMP Thu Nov 19 22:10:57 UTC 2015&quot;, &quot;machine&quot; : &quot;x86_64&quot; }, &quot;somap&quot; : [ { &quot;elfType&quot; : 2, &quot;b&quot; : &quot;400000&quot;, &quot;buildId&quot; : &quot;46D1E684CF5C5862766541145ADE571355BC0F10&quot; }, { &quot;b&quot; : &quot;7FFC90AEE000&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;0F488C85309E4AB293D3B758748A3037B01F9885&quot; }, { &quot;b&quot; : &quot;7F087B2E1000&quot;, &quot;path&quot; : &quot;/lib64/libssl.so.10&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;478D01A08B923A251D755BB421F3EBAF9F2982C1&quot; }, { &quot;b&quot; : &quot;7F087AEF9000&quot;, &quot;path&quot; : &quot;/lib64/libcrypto.so.10&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;42AAFD25E9B5F4CE2EFE6309491445B1A92A575D&quot; }, { &quot;b&quot; : &quot;7F087ACF1000&quot;, &quot;path&quot; : &quot;/lib64/librt.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;4D22B5631EAF7D1EB6E72A42315105D14C70DC50&quot; }, { &quot;b&quot; : &quot;7F087AAED000&quot;, &quot;path&quot; : &quot;/lib64/libdl.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;091060A163E7EDA25572F3B1BAF2E8F80209C00E&quot; }, { &quot;b&quot; : &quot;7F087A7EB000&quot;, &quot;path&quot; : &quot;/lib64/libm.so.6&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;8DEE792EF5B31B20A3CD95985E8BE374D5C6A8C2&quot; }, { &quot;b&quot; : &quot;7F087A5D5000&quot;, &quot;path&quot; : &quot;/lib64/libgcc_s.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;6AA1DCC4DE7F1836344949857FC2017278631FFD&quot; }, { &quot;b&quot; : &quot;7F087A3B9000&quot;, &quot;path&quot; : &quot;/lib64/libpthread.so.0&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;4C0F15C537CF112511B6BE97DE1627C350652AA2&quot; }, { &quot;b&quot; : &quot;7F0879FF8000&quot;, &quot;path&quot; : &quot;/lib64/libc.so.6&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;B04A54C443D36058702AB4060C63F4AB3273EAE9&quot; }, { &quot;b&quot; : &quot;7F087B54E000&quot;, &quot;path&quot; : &quot;/lib64/ld-linux-x86-64.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;93D2E4A501823D041413EEB652B89044D1F680EE&quot; }, { &quot;b&quot; : &quot;7F0879DAC000&quot;, &quot;path&quot; : &quot;/lib64/libgssapi_krb5.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;D46A230FFF4A7B808B3CFC213D31FCAC542FB504&quot; }, { &quot;b&quot; : &quot;7F0879AC7000&quot;, &quot;path&quot; : &quot;/lib64/libkrb5.so.3&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;6D6136A0E795420B05854DEF13A10C226FE9CCB2&quot; }, { &quot;b&quot; : &quot;7F08798C3000&quot;, &quot;path&quot; : &quot;/lib64/libcom_err.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;3A1166709F88740C49E060731832E3FAD2DFB66B&quot; }, { &quot;b&quot; : &quot;7F0879691000&quot;, &quot;path&quot; : &quot;/lib64/libk5crypto.so.3&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;AA97A848DD7C9E57B06EC913E10D420AEBBCE027&quot; }, { &quot;b&quot; : &quot;7F087947B000&quot;, &quot;path&quot; : &quot;/lib64/libz.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;1982C8CDAE90F898D1AD26DC07E807333B4789D0&quot; }, { &quot;b&quot; : &quot;7F087926C000&quot;, &quot;path&quot; : &quot;/lib64/libkrb5support.so.0&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;AEF6C3D3C5152F339942041519A106FC055DAF71&quot; }, { &quot;b&quot; : &quot;7F0879068000&quot;, &quot;path&quot; : &quot;/lib64/libkeyutils.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;2E01D5AC08C1280D013AAB96B292AC58BC30A263&quot; }, { &quot;b&quot; : &quot;7F0878E4E000&quot;, &quot;path&quot; : &quot;/lib64/libresolv.so.2&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;A9DA5486FACCE0E1DED291E6B4638CCC25F77BA0&quot; }, { &quot;b&quot; : &quot;7F0878C29000&quot;, &quot;path&quot; : &quot;/lib64/libselinux.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;82FF6B18E1E42825CC2D060F969479AD4AF2F62C&quot; }, { &quot;b&quot; : &quot;7F08789C8000&quot;, &quot;path&quot; : &quot;/lib64/libpcre.so.1&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;30FA397B01197ECABC647CBD8E75FDD5B743D730&quot; }, { &quot;b&quot; : &quot;7F08787A3000&quot;, &quot;path&quot; : &quot;/lib64/liblzma.so.5&quot;, &quot;elfType&quot; : 3, &quot;buildId&quot; : &quot;98131C9354279ABD39FD80D4BE5B3EC5678BD9E0&quot; } ] }}&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(_ZN5mongo15printStackTraceERSo+0x32) [0x1352122]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(+0xF51279) [0x1351279]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(+0xF515F8) [0x13515f8]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; libpthread.so.0(+0xF100) [0x7f087a3c8100]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(_ZN8tcmalloc11ThreadCache21ReleaseToCentralCacheEPNS0_8FreeListEmi+0xE3) [0x143cf93]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(_ZN8tcmalloc11ThreadCache11ListTooLongEPNS0_8FreeListEm+0x1D) [0x143d06d]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(free+0x200) [0x1bb3ee0]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(+0x15FFAC9) [0x19ffac9]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(__wt_evict+0x94C) [0x1a670ec]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(+0x1661AEA) [0x1a61aea]&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(+0x1662047) [0x1a62047]&lt;/span&gt;&lt;/pre&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(__wt_evict_thread_run+0x6A) [0x1a638ca]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; mongod(__wt_thread_run+0x16) [0x1acbf96]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; libpthread.so.0(+0x7DC5) [0x7f087a3c0dc5]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; libc.so.6(clone+0x6D) [0x7f087a0ee21d]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;-----  END BACKTRACE  -----&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] /proc/self/maps:&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;00400000-0204b000 r-xp 00000000 fd:00 1208106005                         /var/lib/mongodb-mms-automation/mongodb-linux-x86_64-3.2.16/bin/mongod&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 0204b000-0211f000 rw-p 01c4b000 fd:00 1208106005                         /var/lib/mongodb-mms-automation/mongodb-linux-x86_64-3.2.16/bin/mongod&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 0211f000-0218f000 rw-p 00000000 00:00 0 &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 02b4d000-0374e000 rw-p 00000000 00:00 0                                  [heap]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 0374e000-4453ede000 rw-p 00000000 00:00 0                                [heap]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853700000-7f0853701000 ---p 00000000 00:00 0 &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853701000-7f0853801000 rw-p 00000000 00:00 0 &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853801000-7f0853802000 ---p 00000000 00:00 0 &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853802000-7f0853902000 rw-p 00000000 00:00 0                          [stack:55606]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853902000-7f0853903000 ---p 00000000 00:00 0 &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853903000-7f0853a03000 rw-p 00000000 00:00 0 &lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;2017-11-30T03:44:07.178+0000 F -        [thread1] 7f0853a03000-7f0853a04000 ---p 00000000 00:00 0&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;...&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;(The &lt;em&gt;&quot;17132 SSL handshake received but server is started without SSL support&quot;&lt;/em&gt; messages occur all the time in this deployment, they don&apos;t play a part in the segfault.)&lt;/p&gt;

&lt;p&gt;At the time of the crash the total memory usage of mongod process was ~60% of the total RAM (300GB v.s. ~500 GB). The only other user process of note running was a monitoring agent.&lt;/p&gt;

&lt;p&gt;From FTDC metrics (graph screenshot attached below) we see that the crash was preceeded by the resident set size decreasing rapidly plus the disk device for swap (/dev/sdb) started being written to.&lt;/p&gt;

&lt;p&gt;The issue is new, but not a one-off - it happened on two different shards a couple of days apart.&lt;/p&gt;</description>
                <environment></environment>
        <key id="468084">SERVER-32170</key>
            <summary>tcmalloc segfault at time of first swap usage</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="5">Cannot Reproduce</resolution>
                                        <assignee username="backlog-server-execution">Backlog - Storage Execution Team</assignee>
                                    <reporter username="akira.kurogane">Akira Kurogane</reporter>
                        <labels>
                    </labels>
                <created>Tue, 5 Dec 2017 02:48:45 +0000</created>
                <updated>Tue, 6 Dec 2022 03:45:09 +0000</updated>
                            <resolved>Fri, 15 Dec 2017 15:14:58 +0000</resolved>
                                    <version>3.2.16</version>
                                                    <component>Stability</component>
                                        <votes>0</votes>
                                    <watches>8</watches>
                                                                                                                <comments>
                            <comment id="1754105" author="akira.kurogane" created="Sun, 17 Dec 2017 23:43:54 +0000"  >&lt;p&gt;Yes, let&apos;s close for now, hopefully a core dump will be shared from somewhere in the future.&lt;/p&gt;

&lt;p&gt;I want to add that I rule out that the zero pointer might have been returned from a malloc() now. Even though the segfault was happening underneath tcmalloc::ThreadCache::Deallocate() I considered it possible that used malloc() for somewhere and that returned a zero pointer (with a non-zero errno value) due to the memory pressure. Also there was a separate user&apos;s case that had tcmalloc::ThreadCache::Allocate() once instead of Deallocate().&lt;/p&gt;

&lt;p&gt;But underneath both of these functions it was in either tcmalloc::SLL_PopRange() or tcmalloc::SLL_Pop() the segfault is recorded as occuring. These functions were short and simple - and they have no malloc() calls in them.&lt;/p&gt;

&lt;p&gt;So it seems it is a double-free bug, presumably reached in a race condition somewhere in or beneath &amp;#95;&amp;#95;evict_page_dirty_update().&lt;/p&gt;</comment>
                            <comment id="1753038" author="ian@10gen.com" created="Fri, 15 Dec 2017 15:14:58 +0000"  >&lt;p&gt;Hey Akira, thanks a lot for continuing to dig on this.  It sounds like without a repro there&apos;s not much the Storage team is able to do.  We&apos;re closing this for now, but please do reopen if you&apos;re able to repro and/or dig up more info.&lt;/p&gt;</comment>
                            <comment id="1750455" author="akira.kurogane" created="Wed, 13 Dec 2017 03:20:50 +0000"  >&lt;p&gt;I tried the repro again, without luck.&lt;/p&gt;

&lt;p&gt;This time I had less-compressible data so storage size of the collections was large enough for the kernel to use all of remaining RAM for filecache for certain.&lt;br/&gt;
I confirmed the NUMA and THP settings were wrong, because sometimes that &apos;helpfully&apos; creates stalls.&lt;br/&gt;
In normal running 480GB of ram was all used by process resident memory or filecache except for 10 ~ 12GB that remained free.&lt;/p&gt;

&lt;p&gt;Then I performed a core dump of a dummy user process that created a 60G file. &lt;/p&gt;

&lt;p&gt;But the kernel handled it smoothly - no swap was used at all. Presumably 50 +GB of filecache was released very quickly.&lt;/p&gt;</comment>
                            <comment id="1749296" author="akira.kurogane" created="Tue, 12 Dec 2017 04:06:24 +0000"  >&lt;p&gt;I&apos;ve been doing some nice big heavy reproductions but haven&apos;t been able to put the kernel memory management into much congestion. It keeps on releasing memory at a steady rate and the free amount never gets near zero.&lt;/p&gt;

&lt;p&gt;Today a user reported that they disabled core dumps on another user process (which was observed to be having aborts several times a day) and they&apos;ve not had any more crashes of mongod since. This is interesting because a core dump of a process using memory larger than (or at least the general size of) the OS&apos;s free amount can explain why the mongod would start being (partially) pushed out RAM in a hurry.&lt;/p&gt;</comment>
                            <comment id="1747891" author="ian@10gen.com" created="Sun, 10 Dec 2017 14:38:14 +0000"  >&lt;p&gt;Arg, sorry, that was stupid - I mis-read Akira&apos;s comment as &apos;Andrew Morrow added a comment&apos;.  Leaving this on Storage, presumably for &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=alexander.gorrod&quot; class=&quot;user-hover&quot; rel=&quot;alexander.gorrod&quot;&gt;alexander.gorrod&lt;/a&gt; to triage since it&apos;s inside of WT.&lt;/p&gt;</comment>
                            <comment id="1746814" author="ian@10gen.com" created="Fri, 8 Dec 2017 15:09:13 +0000"  >&lt;p&gt;Assigning to Platforms since Drew is stewing on this.&lt;/p&gt;</comment>
                            <comment id="1742465" author="akira.kurogane" created="Tue, 5 Dec 2017 02:56:17 +0000"  >&lt;p&gt;Re-symbolized stack trace (leading directory paths trimmed for readability).&lt;/p&gt;

&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/mongo/util/stacktrace_posix.cpp:171:0: mongo::printStackTrace(std::ostream&amp;amp;)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/mongo/util/signal_handlers_synchronous.cpp:180:0: mongo::(anonymous namespace)::printSignalAndBacktrace(int)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/mongo/util/signal_handlers_synchronous.cpp:276:0: mongo::(anonymous namespace)::abruptQuitWithAddrSignal(int, siginfo_t*, void*)&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;??:0:0: where_is_shmfs&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/third_party/gperftools-2.2/src/linked_list.h:75:0: SLL_PopRange&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/third_party/gperftools-2.2/src/thread_cache.h:229:0: tcmalloc::ThreadCache::FreeList::PopRange(int, void**, void**)&lt;/span&gt;&lt;/pre&gt;
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			&lt;/td&gt;
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			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
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			&lt;/td&gt;
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			&lt;/td&gt;
		&lt;/tr&gt;
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			&lt;/td&gt;
		&lt;/tr&gt;
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			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
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			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
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			&lt;/td&gt;
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			&lt;/td&gt;
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			&lt;/td&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/third_party/wiredtiger/src/evict/evict_lru.c:335:0: __wt_evict_thread_run&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;.../src/third_party/wiredtiger/src/support/thread_group.c:25:0: __wt_thread_run&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;??:0:0: __pthread_create_2_1&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
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					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;??:0:0: __libc_ifunc_impl_list&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
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&lt;/div&gt;
&lt;p/&gt;</comment>
                            <comment id="1742462" author="akira.kurogane" created="Tue, 5 Dec 2017 02:53:14 +0000"  >&lt;p&gt;Graph from FTDC metrics. The last second of the captured metrics shows the first large decrease in resident set size, plus that the swap disk device is being used for the first time.&lt;/p&gt;

&lt;p&gt;&lt;span class=&quot;image-wrap&quot; style=&quot;&quot;&gt;&lt;img src=&quot;https://jira.mongodb.org/secure/attachment/172367/172367_smppsymmdb03.ftdc.20171130_0200_to_0344.png&quot; style=&quot;border: 0px solid black&quot; /&gt;&lt;/span&gt;&lt;/p&gt;</comment>
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