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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-10623] Mongod fails to start as unprivileged user when {{/sys/devices/system/node}} is not readable and executable.</title>
                <link>https://jira.mongodb.org/browse/SERVER-10623</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;The function &lt;tt&gt;boost::filesystem::exists(boost::filesystem::path)&lt;/tt&gt; throws an exception if some component of the path is not accessible by the executing user.  This can cause &lt;tt&gt;the ProcessInfo::checkNumaEnabled()&lt;/tt&gt; to throw an uncaught exception at start-up, when trying to determine if NUMA interleaving is enabled or disabled.  Possible resolutions are to detect this in a different way that cannot fail, or to recover more gracefully when this fails.&lt;/p&gt;

&lt;p&gt;Original report follows.&lt;/p&gt;

&lt;blockquote&gt;

&lt;p&gt;Hi,&lt;/p&gt;

&lt;p&gt;On a brand new dedicated server from OVH, under ArchLinux, mongod fails to start as mongodb user. Starting with the same config as root works flawlessly.&lt;/p&gt;

&lt;p&gt;This might be related to the kernel version/options set by OVH as I&apos;ve found a Gentoo user with the exact same issue. The common trait would be the custom 3.10.9 kernel (&lt;a href=&quot;http://forums.gentoo.org/viewtopic-p-7382216.html&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;http://forums.gentoo.org/viewtopic-p-7382216.html&lt;/a&gt;).&lt;/p&gt;

&lt;p&gt;Below is the syslog for a failed startup:&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;
				&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-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;Aug 26 17:42:14 lead systemd[1]: Started High-performance, schema-free document-oriented database.&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;Aug 26 17:42:14 lead mongod[4279]: Mon Aug 26 17:42:14.211 terminate() called, printing stack (if implemented for platform):&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;Aug 26 17:42:14 lead mongod[4279]: 0xadb736 0x6e3355 0x31af3645c46 0x31af3645c73 0x31af3645e9e 0x31af41de41f 0xad02ed 0xad0b02 0xacf9d5 0xacfa69 0x704d6c 0x70508a 0x705633 0x705659 0x7059f7 0x6cbf99 0x31af2d45bc5 0x6e31f5&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo15printStackTraceERSo+0x26) [0xadb736]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11myterminateEv+0x45) [0x6e3355]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libstdc++.so.6(+0x5ec46) [0x31af3645c46]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libstdc++.so.6(+0x5ec73) [0x31af3645c73]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libstdc++.so.6(+0x5ee9e) [0x31af3645e9e]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libboost_filesystem.so.1.54.0(_ZN5boost10filesystem6detail6statusERKNS0_4pathEPNS_6system10error_codeE+0x1ff) [0x31af41de41f]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11ProcessInfo16checkNumaEnabledEv+0x2d) [0xad02ed]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11ProcessInfo10SystemInfo17collectSystemInfoEv+0x292) [0xad0b02]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11ProcessInfo20initializeSystemInfoEv+0x85) [0xacf9d5]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo36_mongoInitializerFunction_SystemInfoEPNS_18InitializerContextE+0x9) [0xacfa69]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5boost6detail8function17function_invoker1IPFN5mongo6StatusEPNS3_18InitializerContextEES4_S6_E6invokeERNS1_15function_bufferES6_+0xc) [0x704d6c]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZNK5mongo11Initializer7executeERKSt6vectorISsSaISsEERKSt3mapISsSsSt4lessISsESaISt4pairIKSsSsEEE+0x1aa) [0x70508a]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo21runGlobalInitializersERKSt6vectorISsSaISsEERKSt3mapISsSsSt4lessISsESaISt4pairIKSsSsEEE+0x23) [0x705633]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo26runGlobalInitializersOrDieERKSt6vectorISsSaISsEERKSt3mapISsSsSt4lessISsESaISt4pairIKSsSsEEE+0x19) [0x705659]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo26runGlobalInitializersOrDieEiPKPKcS3_+0x307) [0x7059f7]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(main+0x259) [0x6cbf99]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libc.so.6(__libc_start_main+0xf5) [0x31af2d45bc5]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod() [0x6e31f5]&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;Aug 26 17:42:14 lead mongod[4279]: Mon Aug 26 17:42:14.217 Got signal: 6 (Aborted).&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;Aug 26 17:42:14 lead mongod[4279]: Mon Aug 26 17:42:14.221 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;Aug 26 17:42:14 lead mongod[4279]: 0xadb736 0x6e381b 0x31af2d59450 0x31af2d593d9 0x31af2d5a7d8 0x6e335a 0x31af3645c46 0x31af3645c73 0x31af3645e9e 0x31af41de41f 0xad02ed 0xad0b02 0xacf9d5 0xacfa69 0x704d6c 0x70508a 0x705633 0x705659 0x7059f7 0x6cbf99&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo15printStackTraceERSo+0x26) [0xadb736]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo10abruptQuitEi+0xfb) [0x6e381b]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libc.so.6(+0x35450) [0x31af2d59450]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libc.so.6(gsignal+0x39) [0x31af2d593d9]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libc.so.6(abort+0x148) [0x31af2d5a7d8]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11myterminateEv+0x4a) [0x6e335a]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libstdc++.so.6(+0x5ec46) [0x31af3645c46]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libstdc++.so.6(+0x5ec73) [0x31af3645c73]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libstdc++.so.6(+0x5ee9e) [0x31af3645e9e]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/lib/libboost_filesystem.so.1.54.0(_ZN5boost10filesystem6detail6statusERKNS0_4pathEPNS_6system10error_codeE+0x1ff) [0x31af41de41f]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11ProcessInfo16checkNumaEnabledEv+0x2d) [0xad02ed]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11ProcessInfo10SystemInfo17collectSystemInfoEv+0x292) [0xad0b02]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo11ProcessInfo20initializeSystemInfoEv+0x85) [0xacf9d5]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo36_mongoInitializerFunction_SystemInfoEPNS_18InitializerContextE+0x9) [0xacfa69]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5boost6detail8function17function_invoker1IPFN5mongo6StatusEPNS3_18InitializerContextEES4_S6_E6invokeERNS1_15function_bufferES6_+0xc) [0x704d6c]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZNK5mongo11Initializer7executeERKSt6vectorISsSaISsEERKSt3mapISsSsSt4lessISsESaISt4pairIKSsSsEEE+0x1aa) [0x70508a]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo21runGlobalInitializersERKSt6vectorISsSaISsEERKSt3mapISsSsSt4lessISsESaISt4pairIKSsSsEEE+0x23) [0x705633]&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo26runGlobalInitializersOrDieERKSt6vectorISsSaISsEERKSt3mapISsSsSt4lessISsESaISt4pairIKSsSsEEE+0x19) [0x705659]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(_ZN5mongo26runGlobalInitializersOrDieEiPKPKcS3_+0x307) [0x7059f7]&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;Aug 26 17:42:14 lead mongod[4279]: /usr/bin/mongod(main+0x259) [0x6cbf99]&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;Aug 26 17:42:14 lead systemd[1]: mongodb.service: main process exited, code=exited, status=14/n/a&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;   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;Aug 26 17:42:14 lead systemd[1]: Unit mongodb.service entered failed state.&lt;/span&gt;&lt;/pre&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;&lt;/blockquote&gt;</description>
                <environment>ArchLinux, kernel 3.10.9-xxxx-grs-ipv6-64 (OVH) x86_64, Intel(R) Xeon(R) CPU E3-1245 V2 @ 3.40GHz</environment>
        <key id="87408">SERVER-10623</key>
            <summary>Mongod fails to start as unprivileged user when {{/sys/devices/system/node}} is not readable and executable.</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="9">Done</resolution>
                                        <assignee username="kyle.erf">Kyle Erf</assignee>
                                    <reporter username="hlidobe">Hugues Lismonde</reporter>
                        <labels>
                    </labels>
                <created>Mon, 26 Aug 2013 16:18:32 +0000</created>
                <updated>Mon, 11 Jul 2016 17:38:49 +0000</updated>
                            <resolved>Fri, 27 Sep 2013 18:15:26 +0000</resolved>
                                    <version>2.4.6</version>
                    <version>2.5.2</version>
                                    <fixVersion>2.5.3</fixVersion>
                                    <component>Stability</component>
                                        <votes>0</votes>
                                    <watches>9</watches>
                                                                                                                <comments>
                            <comment id="487978" author="matt.kangas@10gen.com" created="Mon, 27 Jan 2014 02:32:43 +0000"  >&lt;p&gt;See follow-on ticket &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-12464&quot; title=&quot;Mongod fails to start as unprivileged user when {{/sys/devices/system/node}} is not readable and executable.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-12464&quot;&gt;&lt;del&gt;SERVER-12464&lt;/del&gt;&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="487963" author="dan@10gen.com" created="Sun, 26 Jan 2014 23:21:44 +0000"  >&lt;p&gt;&lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=kyle.erf&quot; class=&quot;user-hover&quot; rel=&quot;kyle.erf&quot;&gt;kyle.erf&lt;/a&gt;, as pointed out by &lt;a href=&quot;https://jira.mongodb.org/secure/ViewProfile.jspa?name=statianzo&quot; class=&quot;user-hover&quot; rel=&quot;statianzo&quot;&gt;statianzo&lt;/a&gt;, it looks like there is still an issue reading /sys/devices/system/node/node1:&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/blob/master/src/mongo/db/startup_warnings.cpp#L90&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/blob/master/src/mongo/db/startup_warnings.cpp#L90&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="474231" author="statianzo" created="Mon, 23 Dec 2013 04:51:16 +0000"  >&lt;p&gt;I&apos;m still having a related issue to this in 2.5.4. Also running on an OVH kernel that /sys/devices/system/node is not readable/executable. On startup, the fatal message is logged:&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;
				&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-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;exception in initAndListen std::exception: boost::filesystem::status:&lt;/span&gt;&lt;/pre&gt;
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		&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;   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;Permission denied: &quot;/sys/devices/system/node/node1&quot;, terminating&lt;/span&gt;&lt;/pre&gt;
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			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;While the fix solved processinfo_linux2.cpp&apos;s reading of /sys/devices/system/node/node1, there&apos;s another attempt to read it inside of startup_warnings.cpp that isn&apos;t wrapped with a try/catch.&lt;/p&gt;</comment>
                            <comment id="432508" author="auto" created="Fri, 27 Sep 2013 17:56:50 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;username&apos;: u&apos;3rf&apos;, u&apos;name&apos;: u&apos;Kyle Erf&apos;, u&apos;email&apos;: u&apos;erf@mongodb.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-10623&quot; title=&quot;Mongod fails to start as unprivileged user when {{/sys/devices/system/node}} is not readable and executable.&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-10623&quot;&gt;&lt;del&gt;SERVER-10623&lt;/del&gt;&lt;/a&gt; Added error handling to NUMA check&lt;/p&gt;

&lt;p&gt;Signed-off-by: Matt Kangas &amp;lt;matt.kangas@mongodb.com&amp;gt;&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/40b90318d5e94fa2112650f72c371d6bd2e535c7&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/40b90318d5e94fa2112650f72c371d6bd2e535c7&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="412489" author="hlidobe" created="Tue, 27 Aug 2013 19:16:24 +0000"  >&lt;p&gt;Thanks for the workaround. It seems a lot of needed folders where unreadable under &lt;tt&gt;/sys&lt;/tt&gt;. Mongod kept failing because it couldn&apos;t read &lt;tt&gt;/sys/dev/block/9:2/queue/read_ahead_kb&lt;/tt&gt;. The error was this time much less &quot;explosive&quot;:&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;
				&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-top: 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;Tue Aug 27 21:03:20.257 [initandlisten] exception in initAndListen std::exception: boost::filesystem::status: Permission denied: &quot;/sys/dev/block/9:2/queue/read_ahead_kb&quot;, terminating&lt;/span&gt;&lt;/pre&gt;
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&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;was in the mongodb.log.&lt;/p&gt;

&lt;p&gt;Currently I&apos;ve chosen the nuke approach and +rx&apos;ed all folders under &lt;tt&gt;/sys&lt;/tt&gt;. I&apos;ll have a look at the permissions on another server with the same mongodb version where it starts correctly.&lt;/p&gt;</comment>
                            <comment id="412459" author="schwerin" created="Tue, 27 Aug 2013 18:34:31 +0000"  >&lt;p&gt;The problem is definitely that &lt;tt&gt;/sys/devices/system/node&lt;/tt&gt; is not +rx for the user in question.  Better behavior would be for mongod to issue a warning that it cannot detect if NUMA interleaving is enabled or disabled in this case, or to detect this by a means that is guaranteed to be readable by non-root users, if one exists.  I will update the description of this ticket accordingly.&lt;/p&gt;

&lt;p&gt;As a workaround, is it reasonable to make said directory +rx in your deployment.&lt;/p&gt;</comment>
                            <comment id="412031" author="hlidobe" created="Tue, 27 Aug 2013 06:31:45 +0000"  >&lt;p&gt;700 also, system and above are world readable/browseable.&lt;/p&gt;</comment>
                            <comment id="411748" author="schwerin" created="Mon, 26 Aug 2013 20:39:30 +0000"  >&lt;p&gt;What are the permissions on &lt;tt&gt;/sys/devices/system/node&lt;/tt&gt;?&lt;/p&gt;</comment>
                            <comment id="411705" author="hlidobe" created="Mon, 26 Aug 2013 19:43:50 +0000"  >&lt;p&gt;Hi,&lt;/p&gt;

&lt;p&gt;mongod --version:&lt;br/&gt;
db version v2.4.6&lt;br/&gt;
Mon Aug 26 21:35:37.207 git version: nogitversion&lt;/p&gt;

&lt;p&gt;ldd /usr/bin/mongod:&lt;br/&gt;
	linux-vdso.so.1 (0x0000037e54e2f000)&lt;br/&gt;
	libpcre.so.1 =&amp;gt; /usr/lib/libpcre.so.1 (0x0000037e549a7000)&lt;br/&gt;
	libpcrecpp.so.0 =&amp;gt; /usr/lib/libpcrecpp.so.0 (0x0000037e5479e000)&lt;br/&gt;
	libsnappy.so.1 =&amp;gt; /usr/lib/libsnappy.so.1 (0x0000037e54598000)&lt;br/&gt;
	libpthread.so.0 =&amp;gt; /usr/lib/libpthread.so.0 (0x0000037e5437a000)&lt;br/&gt;
	libssl.so.1.0.0 =&amp;gt; /usr/lib/libssl.so.1.0.0 (0x0000037e5410e000)&lt;br/&gt;
	libcrypto.so.1.0.0 =&amp;gt; /usr/lib/libcrypto.so.1.0.0 (0x0000037e53d04000)&lt;br/&gt;
	libboost_thread.so.1.54.0 =&amp;gt; /usr/lib/libboost_thread.so.1.54.0 (0x0000037e53aee000)&lt;br/&gt;
	libboost_filesystem.so.1.54.0 =&amp;gt; /usr/lib/libboost_filesystem.so.1.54.0 (0x0000037e538d8000)&lt;br/&gt;
	libboost_program_options.so.1.54.0 =&amp;gt; /usr/lib/libboost_program_options.so.1.54.0 (0x0000037e53669000)&lt;br/&gt;
	libboost_system.so.1.54.0 =&amp;gt; /usr/lib/libboost_system.so.1.54.0 (0x0000037e53466000)&lt;br/&gt;
	librt.so.1 =&amp;gt; /usr/lib/librt.so.1 (0x0000037e5325e000)&lt;br/&gt;
	libtcmalloc.so.4 =&amp;gt; /usr/lib/libtcmalloc.so.4 (0x0000037e52fee000)&lt;br/&gt;
	libstdc+&lt;ins&gt;.so.6 =&amp;gt; /usr/lib/libstdc&lt;/ins&gt;+.so.6 (0x0000037e52cea000)&lt;br/&gt;
	libm.so.6 =&amp;gt; /usr/lib/libm.so.6 (0x0000037e529e7000)&lt;br/&gt;
	libgcc_s.so.1 =&amp;gt; /usr/lib/libgcc_s.so.1 (0x0000037e527d1000)&lt;br/&gt;
	libc.so.6 =&amp;gt; /usr/lib/libc.so.6 (0x0000037e52427000)&lt;br/&gt;
	/lib64/ld-linux-x86-64.so.2 (0x0000037e54c11000)&lt;br/&gt;
	libdl.so.2 =&amp;gt; /usr/lib/libdl.so.2 (0x0000037e52223000)&lt;br/&gt;
	libz.so.1 =&amp;gt; /usr/lib/libz.so.1 (0x0000037e5200d000)&lt;/p&gt;

&lt;p&gt;/proc/self/numa_maps is root:root, 444 so this one should be readable but I don&apos;t have a node1 and /sys/devices/system/node/node0 is root:root, 700&lt;/p&gt;
</comment>
                            <comment id="411682" author="schwerin" created="Mon, 26 Aug 2013 19:26:31 +0000"  >&lt;p&gt;What build of mongod and what version are you using?  The most likely culprit is that one of &lt;tt&gt;/sys/devices/system/node/node1&lt;/tt&gt; and &lt;tt&gt;/proc/self/numa_maps&lt;/tt&gt;, or one of the parent directories thereof, are not readable (or executable in the case of directories) by the user launching MongoDB.  I&apos;m a touch surprised by this specific behavior, though.  Are you running a version of mongodb downloaded from mongodb.org, or one from the Arch packages?  If the latter, it would be good to know the results of running &quot;ldd&quot; on the binary, and also to know the version of boost installed in /usr.  If you downloaded the package from mongodb.org, the result of running &lt;tt&gt;mongod --version&lt;/tt&gt; would be helpful.&lt;/p&gt;

&lt;p&gt;To confirm the hypothesis that it&apos;s an unreadable file, could you check the file permissions for the whole path to &lt;tt&gt;numa_maps&lt;/tt&gt; and &lt;tt&gt;node1&lt;/tt&gt;, described above?&lt;/p&gt;</comment>
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