O:31:"Drupal\Core\Render\HtmlResponse":8:{s:7:"headers";O:50:"Symfony\Component\HttpFoundation\ResponseHeaderBag":5:{s:23:"*computedCacheControl";a:2:{s:7:"max-age";s:3:"300";s:6:"public";b:1;}s:10:"*cookies";a:0:{}s:14:"*headerNames";a:14:{s:12:"content-type";s:12:"Content-Type";s:13:"cache-control";s:13:"Cache-Control";s:4:"date";s:4:"Date";s:22:"x-drupal-dynamic-cache";s:22:"X-Drupal-Dynamic-Cache";s:4:"link";s:4:"Link";s:15:"x-ua-compatible";s:15:"X-UA-Compatible";s:16:"content-language";s:16:"Content-language";s:22:"x-content-type-options";s:22:"X-Content-Type-Options";s:15:"x-frame-options";s:15:"X-Frame-Options";s:7:"expires";s:7:"Expires";s:13:"last-modified";s:13:"Last-Modified";s:4:"etag";s:4:"ETag";s:4:"vary";s:4:"Vary";s:11:"x-generator";s:11:"X-Generator";}s:10:"*headers";a:14:{s:12:"content-type";a:1:{i:0;s:24:"text/html; charset=UTF-8";}s:13:"cache-control";a:1:{i:0;s:19:"max-age=300, public";}s:4:"date";a:1:{i:0;s:29:"Tue, 14 Nov 2017 11:02:39 GMT";}s:22:"x-drupal-dynamic-cache";a:1:{i:0;s:4:"MISS";}s:4:"link";a:6:{i:0;s:35:"</yaffs-debugging>; rel="canonical"";i:1;s:28:"</node/351>; rel="shortlink"";i:2;s:34:"</yaffs-debugging>; rel="revision"";i:3;s:108:"</sites/default/files/css/css_YGKHk3qOgVcGqV_6s_kZUGJkGYQEouHb462Ja18qfRA.css?ozekku>; rel=preload; as=style";i:4;s:108:"</sites/default/files/css/css_6qeLA6GBkZNPHWp9GdQIYovV3tYuKU-ts-HicZ-WeQQ.css?ozekku>; rel=preload; as=style";i:5;s:99:"</sites/default/files/js/js_2l0lF4i9o3aztHULbfajMT_RTqGCEN_lVC8JI48SILw.js>; rel=preload; as=script";}s:15:"x-ua-compatible";a:1:{i:0;s:7:"IE=edge";}s:16:"content-language";a:1:{i:0;s:2:"en";}s:22:"x-content-type-options";a:1:{i:0;s:7:"nosniff";}s:15:"x-frame-options";a:1:{i:0;s:10:"SAMEORIGIN";}s:7:"expires";a:1:{i:0;s:29:"Sun, 19 Nov 1978 05:00:00 GMT";}s:13:"last-modified";a:1:{i:0;s:29:"Tue, 14 Nov 2017 11:02:39 GMT";}s:4:"etag";a:1:{i:0;s:12:""1510657359"";}s:4:"vary";a:1:{i:0;s:6:"Cookie";}s:11:"x-generator";a:1:{i:0;s:33:"Drupal 8 (https://www.drupal.org)";}}s:15:"*cacheControl";a:2:{s:7:"max-age";s:3:"300";s:6:"public";b:1;}}s:10:"*content";s:14997:"<!DOCTYPE html>
<html  lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/  dc: http://purl.org/dc/terms/  foaf: http://xmlns.com/foaf/0.1/  og: http://ogp.me/ns#  rdfs: http://www.w3.org/2000/01/rdf-schema#  schema: http://schema.org/  sioc: http://rdfs.org/sioc/ns#  sioct: http://rdfs.org/sioc/types#  skos: http://www.w3.org/2004/02/skos/core#  xsd: http://www.w3.org/2001/XMLSchema# ">
  <head>
    <meta charset="utf-8" />
<meta name="title" content="YAFFS Debugging | Yaffs - A Flash File System for embedded use" />
<meta name="news_keywords" content="Flash File System" />
<meta name="description" content="YAFFS provides a debugging mechanism which can be controlled at runtime, or set at build time. This page descirbes the options available and how to use them, for when you need to do some troubleshooting." />
<meta name="abstract" content="Yaffs (Yet Another Flash File System) is an open-source file system specifically designed to be fast, robust and suitable for embedded use with NAND and NOR Flash. It is widely used with Linux, RTOSs, or no OS at all, in consumer devices and critical infrastructure. It is available under GNU Public License, GPL, or on commercial terms from Aleph One." />
<meta name="keywords" content="flash File System, flash, file System, flash storage, NAND flash, NOR flash, Yaffs" />
<meta name="Generator" content="Drupal 8 (https://www.drupal.org)" />
<meta name="MobileOptimized" content="width" />
<meta name="HandheldFriendly" content="true" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansRegular-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansItalic-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansBold-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifBold-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifBoldItalic-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifItalic-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifRegular-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="stylesheet" href="https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansBoldItalic-fontfacekit/fontyourface-stylesheet.css" media="all" />
<link rel="shortcut icon" href="/sites/default/files/yaffs_favicon.png" type="image/png" />
<link rel="canonical" href="/yaffs-debugging" />
<link rel="shortlink" href="/node/351" />
<link rel="revision" href="/yaffs-debugging" />

    <title>YAFFS Debugging | Yaffs - A Flash File System for embedded use</title>
    <link rel="stylesheet" href="/sites/default/files/css/css_YGKHk3qOgVcGqV_6s_kZUGJkGYQEouHb462Ja18qfRA.css?ozekku" media="all" />
<link rel="stylesheet" href="/sites/default/files/css/css_6qeLA6GBkZNPHWp9GdQIYovV3tYuKU-ts-HicZ-WeQQ.css?ozekku" media="all" />

    
<!--[if lte IE 8]>
<script src="/sites/default/files/js/js_VtafjXmRvoUgAzqzYTA3Wrjkx9wcWhjP0G4ZnnqRamA.js"></script>
<![endif]-->

  </head>
  <body class="fontyourface path-node page-node-type-page navbar-is-fixed-top has-glyphicons">
    <a href="#main-content" class="visually-hidden focusable skip-link">
      Skip to main content
    </a>
    <div style="background-color: ; color: " id="environment-indicator">
  
    </div>

              <header class="navbar navbar-default navbar-fixed-top" id="navbar" role="banner">
              <div class="container">
            <div class="navbar-header">
          <div class="region region-navigation">
          <a class="logo navbar-btn pull-left" href="/" title="Home" rel="home">
      <img src="/themes/custom/yaffs/logo.svg" alt="Home" />
    </a>
      
  </div>

                          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-collapse">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
              </div>

                    <div id="navbar-collapse" class="navbar-collapse collapse">
            <div class="region region-navigation-collapsible">
    <nav role="navigation" aria-labelledby="block-mainnavigation-menu" id="block-mainnavigation">
            <h2 class="sr-only" id="block-mainnavigation-menu">Main navigation</h2>

      
              <ul class="menu nav navbar-nav">
                            <li>
        <a href="/" data-drupal-link-system-path="&lt;front&gt;">Home</a>
                  </li>
                        <li>
        <a href="/support" title="Help for Yaffs" data-drupal-link-system-path="node/380">Support</a>
                  </li>
                        <li>
        <a href="/documents" data-drupal-link-system-path="documents">Documents</a>
                  </li>
                        <li>
        <a href="/get-yaffs" data-drupal-link-system-path="node/382">Download</a>
                  </li>
                        <li>
        <a href="/about-us" data-drupal-link-system-path="node/325">About us</a>
                  </li>
                        <li>
        <a href="/contact" data-drupal-link-system-path="node/73">Contact</a>
                  </li>
        </ul>
  


  </nav>
<div class="search-block-form block block-search block-search-form-block" data-drupal-selector="search-block-form" id="block-searchform" role="search">
  
    
      <form action="/search/node" method="get" id="search-block-form" accept-charset="UTF-8">
  <div class="form-item js-form-item form-type-search js-form-type-search form-item-keys js-form-item-keys form-no-label form-group">
      <label for="edit-keys" class="control-label sr-only">Search</label>
  
  
  <div class="input-group"><input title="Enter the terms you wish to search for." data-drupal-selector="edit-keys" class="form-search form-control" placeholder="Search" type="search" id="edit-keys" name="keys" value="" size="15" maxlength="128" data-toggle="tooltip" /><span class="input-group-btn"><button type="submit" value="Search" class="button js-form-submit form-submit btn-primary btn icon-only" name=""><span class="sr-only">Search</span><span class="icon glyphicon glyphicon-search" aria-hidden="true"></span></button></span></div>

  
  
  </div>
<div class="form-actions form-group js-form-wrapper form-wrapper" data-drupal-selector="edit-actions" id="edit-actions"></div>

</form>

  </div>

  </div>

        </div>
                    </div>
          </header>
  
  <div role="main" class="main-container container js-quickedit-main-content">
    <div class="row">

            
            
                  <section class="col-sm-12">

                                      <div class="highlighted">  <div class="region region-highlighted">
      


  </div>
</div>
                  
                
                
                                      
                  
                          <a id="main-content"></a>
            <div class="region region-content">
        <h1 class="page-header"><span property="schema:name">YAFFS Debugging</span>
</h1>

  <article role="article" about="/yaffs-debugging" typeof="schema:WebPage" class="page is-promoted is-sticky full clearfix">

  
      <span property="schema:name" content="YAFFS Debugging" class="hidden"></span>


  
  <div class="content">
    
            <div property="schema:text" class="field field--name-body field--type-text-with-summary field--label-hidden field--item">
<h1>How to control debugging in yaffs</h1>
<p>YAFFS provides a debugging mechanism which can be controlled at runtime if you have access to /proc, normally via a shell. If you need to trace things before you get to a shell, then you can set default trace options at compile time.</p>
<h2>Available Trace Flags</h2>
<table>
<tr>
 <th>name</th>
 <th>C #define</th>
 <th>bitmask value</th>
</tr>
<tr>
 <td>error </td>
 <td>YAFFS_TRACE_ERROR </td>
 <td>0x00000001</td>
</tr>
<tr>
 <td>os </td>
 <td>YAFFS_TRACE_OS </td>
 <td>0x00000002</td>
</tr>
<tr>
 <td>allocate </td>
 <td>YAFFS_TRACE_ALLOCATE </td>
 <td>0x00000004</td>
</tr>
<tr>
 <td>scan </td>
 <td>YAFFS_TRACE_SCAN </td>
 <td>0x00000008</td>
</tr>
<tr>
 <td>bad_blocks </td>
 <td>YAFFS_TRACE_BAD_BLOCKS </td>
 <td>0x00000010</td>
</tr>
<tr>
 <td>erase </td>
 <td>YAFFS_TRACE_ERASE </td>
 <td>0x00000020</td>
</tr>
<tr>
 <td>gc </td>
 <td>YAFFS_TRACE_GC </td>
 <td>0x00000040</td>
</tr>
<tr>
 <td>write </td>
 <td>YAFFS_TRACE_WRITE </td>
 <td>0x00000080</td>
</tr>
<tr>
 <td>tracing </td>
 <td>YAFFS_TRACE_TRACING </td>
 <td>0x00000100</td>
</tr>
<tr>
 <td>deletion </td>
 <td>YAFFS_TRACE_DELETION </td>
 <td>0x00000200</td>
</tr>
<tr>
 <td>buffers </td>
 <td>YAFFS_TRACE_BUFFERS </td>
 <td>0x00000400</td>
</tr>
<tr>
 <td>nandaccess </td>
 <td>YAFFS_TRACE_NANDACCESS </td>
 <td>0x00000800</td>
</tr>
<tr>
 <td>gc_detail </td>
 <td>YAFFS_TRACE_GC_DETAIL </td>
 <td>0x00001000</td>
</tr>
<tr>
 <td>scan_debug </td>
 <td>YAFFS_TRACE_SCAN_DEBUG </td>
 <td>0x00002000</td>
</tr>
<tr>
 <td>mtd </td>
 <td>YAFFS_TRACE_MTD </td>
 <td>0x00004000</td>
</tr>
<tr>
 <td>always </td>
 <td>YAFFS_TRACE_ALWAYS </td>
 <td>0x40000000</td>
</tr>
<tr>
 <td>bug </td>
 <td>YAFFS_TRACE_BUG </td>
 <td>0x80000000</td>
</tr>
</table>
<h2>Flag meanings</h2>
<p>The flags cover possible debugging messages from various aspects of the filesystem - initial scanning, mtd interface, writing, nand access, garbage collection, OS interaction etc. Turning on everything results an awful lot of trace info, so it is usually best to just enable a few relevant flags.</p>
<h2>Setting flags at runtime</h2>
<p>The flags can be set or cleared by echoing the name of the flag into /proc/yaffs with a '+' or '-':<br />
<code>echo +os-write &gt; /proc/yaffs</code></p>
<p>It can be set to to all or none using '=', and then flags can be added or removed:<br />
<code>echo =none+os+write &gt; /proc/yaffs</code></p>
<p>And you can use numerical values, if you are so inclined (using standard C format):<br />
<code>echo 0xf00001 &gt; /proc/yaffs</code></p>
<p>So<br />
<code>echo all &gt; /proc/yaffs</code><br />
will turn all tracing on</p>
<p><b>Note</b> that you only see the output showing you the current trace state if the 'always' (YAFFS_TRACE_ALWAYS) flag is set, so to see what you are doing do this:<br />
<code>echo +always &gt; /proc/yaffs</code></p>
<h2>Setting flags at compile time</h2>
<p>Flags can be set in the code at compile-time by setting <code>yaffs_traceMask</code> in <code>yaffs_fs.c</code> (add new flags to <code>always</code> and <code>bad_blocks</code> which are set by default)</p>
</div>
      
  </div>

</article>


  </div>

              </section>

                </div>
  </div>

      <footer class="footer container" role="contentinfo">
        <div class="primary_footer row">
            <div class="col-sm-3">
                  <div class="region region-footer-col1">
    <section id="block-yaffs-block-6" class="block block-block-content block-block-content6c2d4b45-4dba-4b2d-8b9f-76701bf27533 clearfix">
  
    

      
            <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item">
<ul class="fa-ul">
<li><i class="fa-li fa fa-phone"></i>+44 (0)1223 811679</li>
<li><i class="fa-li fa fa-envelope"></i><a href="denied:mailto:info@aleph1.co.uk?Subject=Website contact" target="_top">info@aleph1.co.uk</a></li>
</ul>
</div>
      
  </section>


  </div>

            </div>
            <div class="col-sm-3">
                
            </div>
            <div class="col-sm-3">
                
            </div>
            <div class="col-sm-3">
                  <div class="region region-footer-col4">
    <section id="block-footerlegal" class="block block-block-content block-block-content78ab593d-35b6-4772-a141-30216e7fcbb2 clearfix">
  
    

      
            <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item">
<p class="text-align-right">&nbsp;<a href="/legal">Legal &amp; Cookies</a></p>
</div>
      
  </section>

<section id="block-cookieinfo" class="block block-block-content block-block-content4848c58d-90df-4819-81d8-0f9568eeeaac clearfix">
  
    

      
            <div class="field field--name-body field--type-text-with-summary field--label-hidden field--item">
<p class="text-align-justify"><br />
We use <a href="/legal">cookies on this site</a>. By using it, you are giving us consent to set cookies.</p>
</div>
      
  </section>


  </div>

            </div>
        </div>
        <div class = "secondary_footer row">
            <div class="col-sm-12">
                <div class="region region-footer">
    <nav role="navigation" aria-labelledby="block-yaffs-account-menu-menu" id="block-yaffs-account-menu">
            <h2 class="sr-only" id="block-yaffs-account-menu-menu">User account menu</h2>

      
              <ul class="menu nav navbar-nav navbar-right">
                            <li>
        <a href="/user/login" data-drupal-link-system-path="user/login">Log in</a>
                  </li>
        </ul>
  


  </nav>

  </div>

            </div>
        </div>
    </footer>
  
    
    <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","scriptPath":null,"pathPrefix":"","currentPath":"node\/351","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","bootstrap":{"forms_has_error_value_toggle":1,"modal_animation":1,"modal_backdrop":"true","modal_keyboard":1,"modal_show":1,"modal_size":"","popover_enabled":1,"popover_animation":1,"popover_container":"body","popover_content":"","popover_delay":"0","popover_html":0,"popover_placement":"right","popover_selector":"","popover_title":"","popover_trigger":"click","popover_trigger_autoclose":1,"tooltip_enabled":1,"tooltip_animation":1,"tooltip_container":"body","tooltip_delay":"0","tooltip_html":0,"tooltip_placement":"auto left","tooltip_selector":"","tooltip_trigger":"hover"},"ajaxTrustedUrl":{"\/search\/node":true},"user":{"uid":0,"permissionsHash":"aa7fc4c8fb40c7a8665ccd12fea07926dff0f59b9ee3346bc513c6399bee5b01"}}</script>
<script src="/sites/default/files/js/js_2l0lF4i9o3aztHULbfajMT_RTqGCEN_lVC8JI48SILw.js"></script>

  </body>
</html>
";s:10:"*version";s:3:"1.0";s:13:"*statusCode";i:200;s:13:"*statusText";s:2:"OK";s:10:"*charset";N;s:23:"*cacheabilityMetadata";O:35:"Drupal\Core\Cache\CacheableMetadata":3:{s:16:"*cacheContexts";a:18:{i:0;s:28:"languages:language_interface";i:1;s:5:"route";i:2;s:32:"route.menu_active_trails:account";i:3;s:29:"route.menu_active_trails:main";i:4;s:30:"route.menu_active_trails:tools";i:5;s:5:"theme";i:6;s:8:"timezone";i:7;s:3:"url";i:8;s:8:"url.path";i:9;s:17:"url.path.is_front";i:10;s:15:"url.path.parent";i:11;s:30:"url.query_args:_wrapper_format";i:12;s:4:"user";i:13;s:21:"user.node_grants:view";i:14;s:16:"user.permissions";i:15;s:10:"user.roles";i:16;s:20:"user.roles:anonymous";i:17;s:24:"user.roles:authenticated";}s:12:"*cacheTags";a:50:{i:0;s:16:"block_content:18";i:1;s:16:"block_content:23";i:2;s:15:"block_content:7";i:3;s:18:"block_content_view";i:4;s:10:"block_view";i:5;s:32:"config:block.block.choosingyaffs";i:6;s:29:"config:block.block.cookieinfo";i:7;s:32:"config:block.block.downloadyaffs";i:8;s:30:"config:block.block.footerlegal";i:9;s:39:"config:block.block.frontimagehighlight2";i:10;s:32:"config:block.block.frontpagehero";i:11;s:39:"config:block.block.frontpageprimeryaffs";i:12;s:33:"config:block.block.mainnavigation";i:13;s:35:"config:block.block.mainnavigation_2";i:14;s:29:"config:block.block.searchform";i:15;s:31:"config:block.block.sitebranding";i:16;s:66:"config:block.block.views_block__highlighted_yaffs_features_block_1";i:17;s:66:"config:block.block.views_block__yaffs_admin_recent_content_block_1";i:18;s:66:"config:block.block.views_block__yaffs_documents_highlights_block_1";i:19;s:56:"config:block.block.views_block__yaffs_user_logos_block_1";i:20;s:37:"config:block.block.yaffs_account_menu";i:21;s:33:"config:block.block.yaffs_block_10";i:22;s:32:"config:block.block.yaffs_block_5";i:23;s:32:"config:block.block.yaffs_block_6";i:24;s:32:"config:block.block.yaffs_block_8";i:25;s:32:"config:block.block.yaffs_block_9";i:26;s:36:"config:block.block.yaffs_breadcrumbs";i:27;s:32:"config:block.block.yaffs_content";i:28;s:29:"config:block.block.yaffs_help";i:29;s:36:"config:block.block.yaffs_local_tasks";i:30;s:33:"config:block.block.yaffs_messages";i:31;s:35:"config:block.block.yaffs_page_title";i:32;s:32:"config:block.block.yaffs_user_21";i:33;s:31:"config:block.block.yaffsinspace";i:34;s:17:"config:block_list";i:35;s:24:"config:color.theme.yaffs";i:36;s:30:"config:filter.format.full_html";i:37;s:29:"config:filter.format.raw_html";i:38;s:22:"config:search.settings";i:39;s:26:"config:system.menu.account";i:40;s:23:"config:system.menu.main";i:41;s:24:"config:system.menu.tools";i:42;s:18:"config:system.site";i:43;s:26:"config:user.role.anonymous";i:44;s:13:"http_response";i:45;s:8:"node:351";i:46;s:9:"node_view";i:47;s:8:"rendered";i:48;s:6:"user:0";i:49;s:6:"user:3";}s:14:"*cacheMaxAge";i:-1;}s:14:"*attachments";a:5:{s:7:"library";a:9:{i:0;s:14:"core/html5shiv";i:1;s:11:"system/base";i:2;s:15:"bootstrap/theme";i:3;s:20:"yaffs/global-styling";i:4;s:23:"yaffs/bootstrap-scripts";i:5;s:19:"yaffs/yaffs-helpers";i:6;s:17:"bootstrap/popover";i:7;s:17:"bootstrap/tooltip";i:8;s:50:"environment_indicator/drupal.environment_indicator";}s:9:"html_head";a:22:{i:0;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:5:"title";s:7:"content";s:62:"YAFFS Debugging | Yaffs - A Flash File System for embedded use";}}i:1;s:5:"title";}i:1;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:13:"news_keywords";s:7:"content";s:17:"Flash File System";}}i:1;s:13:"news_keywords";}i:2;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:11:"description";s:7:"content";s:203:"YAFFS provides a debugging mechanism which can be controlled at runtime, or set at build time. This page descirbes the options available and how to use them, for when you need to do some troubleshooting.";}}i:1;s:11:"description";}i:3;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:8:"abstract";s:7:"content";s:352:"Yaffs (Yet Another Flash File System) is an open-source file system specifically designed to be fast, robust and suitable for embedded use with NAND and NOR Flash. It is widely used with Linux, RTOSs, or no OS at all, in consumer devices and critical infrastructure. It is available under GNU Public License, GPL, or on commercial terms from Aleph One.";}}i:1;s:8:"abstract";}i:4;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:8:"keywords";s:7:"content";s:82:"flash File System, flash, file System, flash storage, NAND flash, NOR flash, Yaffs";}}i:1;s:8:"keywords";}i:5;a:2:{i:0;a:3:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:1:{s:7:"charset";s:5:"utf-8";}s:7:"#weight";i:-1000;}i:1;s:24:"system_meta_content_type";}i:6;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:9:"Generator";s:7:"content";s:33:"Drupal 8 (https://www.drupal.org)";}}i:1;s:21:"system_meta_generator";}i:7;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:15:"MobileOptimized";s:7:"content";s:5:"width";}}i:1;s:15:"MobileOptimized";}i:8;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:16:"HandheldFriendly";s:7:"content";s:4:"true";}}i:1;s:16:"HandheldFriendly";}i:9;a:2:{i:0;a:2:{s:4:"#tag";s:4:"meta";s:11:"#attributes";a:2:{s:4:"name";s:8:"viewport";s:7:"content";s:37:"width=device-width, initial-scale=1.0";}}i:1;s:8:"viewport";}i:10;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:125:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansRegular-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1151";}i:11;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:124:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansItalic-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1152";}i:12;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:122:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansBold-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1153";}i:13;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:123:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifBold-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1149";}i:14;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:129:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifBoldItalic-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1150";}i:15;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:125:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifItalic-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1148";}i:16;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:126:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSerifRegular-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1147";}i:17;a:2:{i:0;a:3:{s:5:"#type";s:8:"html_tag";s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:10:"stylesheet";s:4:"href";s:128:"https://yaffs.net/sites/default/files/fontyourface/fontsquirrel/LiberationSansBoldItalic-fontfacekit/fontyourface-stylesheet.css";s:5:"media";s:3:"all";}}i:1;s:21:"fontsquirrel-api-1154";}i:18;a:2:{i:0;a:2:{s:4:"#tag";s:4:"link";s:11:"#attributes";a:3:{s:3:"rel";s:13:"shortcut icon";s:4:"href";s:38:"/sites/default/files/yaffs_favicon.png";s:4:"type";s:9:"image/png";}}i:1;s:67:"html_head_link:shortcut icon:/sites/default/files/yaffs_favicon.png";}i:19;a:2:{i:0;a:2:{s:4:"#tag";s:4:"link";s:11:"#attributes";a:2:{s:3:"rel";s:9:"canonical";s:4:"href";s:16:"/yaffs-debugging";}}i:1;s:41:"html_head_link:canonical:/yaffs-debugging";}i:20;a:2:{i:0;a:2:{s:4:"#tag";s:4:"link";s:11:"#attributes";a:2:{s:3:"rel";s:9:"shortlink";s:4:"href";s:9:"/node/351";}}i:1;s:34:"html_head_link:shortlink:/node/351";}i:21;a:2:{i:0;a:2:{s:4:"#tag";s:4:"link";s:11:"#attributes";a:2:{s:3:"rel";s:8:"revision";s:4:"href";s:16:"/yaffs-debugging";}}i:1;s:40:"html_head_link:revision:/yaffs-debugging";}}s:12:"placeholders";a:0:{}s:14:"drupalSettings";a:5:{s:4:"path";a:7:{s:7:"baseUrl";s:1:"/";s:10:"scriptPath";N;s:10:"pathPrefix";s:0:"";s:11:"currentPath";s:8:"node/351";s:18:"currentPathIsAdmin";b:0;s:7:"isFront";b:0;s:15:"currentLanguage";s:2:"en";}s:15:"pluralDelimiter";s:1:"";s:9:"bootstrap";a:25:{s:28:"forms_has_error_value_toggle";i:1;s:15:"modal_animation";i:1;s:14:"modal_backdrop";s:4:"true";s:14:"modal_keyboard";i:1;s:10:"modal_show";i:1;s:10:"modal_size";s:0:"";s:15:"popover_enabled";i:1;s:17:"popover_animation";i:1;s:17:"popover_container";s:4:"body";s:15:"popover_content";s:0:"";s:13:"popover_delay";s:1:"0";s:12:"popover_html";i:0;s:17:"popover_placement";s:5:"right";s:16:"popover_selector";s:0:"";s:13:"popover_title";s:0:"";s:15:"popover_trigger";s:5:"click";s:25:"popover_trigger_autoclose";i:1;s:15:"tooltip_enabled";i:1;s:17:"tooltip_animation";i:1;s:17:"tooltip_container";s:4:"body";s:13:"tooltip_delay";s:1:"0";s:12:"tooltip_html";i:0;s:17:"tooltip_placement";s:9:"auto left";s:16:"tooltip_selector";s:0:"";s:15:"tooltip_trigger";s:5:"hover";}s:14:"ajaxTrustedUrl";a:1:{s:12:"/search/node";b:1;}s:4:"user";a:2:{s:3:"uid";i:0;s:15:"permissionsHash";s:64:"aa7fc4c8fb40c7a8665ccd12fea07926dff0f59b9ee3346bc513c6399bee5b01";}}s:11:"http_header";a:3:{i:0;a:3:{i:0;s:4:"Link";i:1;s:35:"</yaffs-debugging>; rel="canonical"";i:2;b:0;}i:1;a:3:{i:0;s:4:"Link";i:1;s:28:"</node/351>; rel="shortlink"";i:2;b:0;}i:2;a:3:{i:0;s:4:"Link";i:1;s:34:"</yaffs-debugging>; rel="revision"";i:2;b:0;}}}}