doc/release-notes/skiboot-5.9.7.html


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130


<!DOCTYPE html>

<html>
  <head>
    <meta charset="utf-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" /><meta name="generator" content="Docutils 0.17.1: http://docutils.sourceforge.net/" />

    <title>skiboot-5.9.7 &#8212; skiboot 9eb2874
 documentation</title>
    <link rel="stylesheet" type="text/css" href="../_static/pygments.css" />
    <link rel="stylesheet" type="text/css" href="../_static/classic.css" />
    
    <script data-url_root="../" id="documentation_options" src="../_static/documentation_options.js"></script>
    <script src="../_static/jquery.js"></script>
    <script src="../_static/underscore.js"></script>
    <script src="../_static/doctools.js"></script>
    
    <link rel="index" title="Index" href="../genindex.html" />
    <link rel="search" title="Search" href="../search.html" />
    <link rel="next" title="skiboot-5.9.8" href="skiboot-5.9.8.html" />
    <link rel="prev" title="skiboot-5.9.6" href="skiboot-5.9.6.html" /> 
  </head><body>
    <div class="related" role="navigation" aria-label="related navigation">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="../genindex.html" title="General Index"
             accesskey="I">index</a></li>
        <li class="right" >
          <a href="skiboot-5.9.8.html" title="skiboot-5.9.8"
             accesskey="N">next</a> |</li>
        <li class="right" >
          <a href="skiboot-5.9.6.html" title="skiboot-5.9.6"
             accesskey="P">previous</a> |</li>
        <li class="nav-item nav-item-0"><a href="../index.html">skiboot 9eb2874
 documentation</a> &#187;</li>
          <li class="nav-item nav-item-1"><a href="index.html" accesskey="U">Release Notes</a> &#187;</li>
        <li class="nav-item nav-item-this"><a href="">skiboot-5.9.7</a></li> 
      </ul>
    </div>  

    <div class="document">
      <div class="documentwrapper">
        <div class="bodywrapper">
          <div class="body" role="main">
            
  <section id="skiboot-5-9-7">
<span id="id1"></span><h1>skiboot-5.9.7<a class="headerlink" href="#skiboot-5-9-7" title="Permalink to this headline">¶</a></h1>
<p>skiboot 5.9.7 was released on Friday December 22nd, 2017. It replaces
<a class="reference internal" href="skiboot-5.9.6.html#skiboot-5-9-6"><span class="std std-ref">skiboot-5.9.6</span></a> as the current stable release in the 5.9.x series.</p>
<p>Over <a class="reference internal" href="skiboot-5.9.6.html#skiboot-5-9-6"><span class="std std-ref">skiboot-5.9.6</span></a>, we have two bug fixes, they are:</p>
<ul>
<li><p>phb4: Change PCI MMIO timers</p>
<p>Currently we have a mismatch between the NCU and PCI timers for MMIO
accesses. The PCI timers must be lower than the NCU timers otherwise
it may cause checkstops.</p>
<p>This changes PCI timeouts controlled by skiboot to 33-50ms. It should
be forwards and backwards compatible with expected hostboot changes to
the NCU timer.</p>
</li>
<li><p>p8-i2c: Limit number of retry attempts</p>
<p>Currently we will attempt to start an I2C transaction until it succeeds.
In the event that the OCC does not release the lock on an I2C bus this
results in an async token being held forever and the kernel thread that
started the transaction will block forever while waiting for an async
completion message. Fix this by limiting the number of attempts to
start the transaction.</p>
</li>
</ul>
</section>


            <div class="clearer"></div>
          </div>
        </div>
      </div>
      <div class="sphinxsidebar" role="navigation" aria-label="main navigation">
        <div class="sphinxsidebarwrapper">
  <h4>Previous topic</h4>
  <p class="topless"><a href="skiboot-5.9.6.html"
                        title="previous chapter">skiboot-5.9.6</a></p>
  <h4>Next topic</h4>
  <p class="topless"><a href="skiboot-5.9.8.html"
                        title="next chapter">skiboot-5.9.8</a></p>
  <div role="note" aria-label="source link">
    <h3>This Page</h3>
    <ul class="this-page-menu">
      <li><a href="../_sources/release-notes/skiboot-5.9.7.rst.txt"
            rel="nofollow">Show Source</a></li>
    </ul>
   </div>
<div id="searchbox" style="display: none" role="search">
  <h3 id="searchlabel">Quick search</h3>
    <div class="searchformwrapper">
    <form class="search" action="../search.html" method="get">
      <input type="text" name="q" aria-labelledby="searchlabel" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false"/>
      <input type="submit" value="Go" />
    </form>
    </div>
</div>
<script>$('#searchbox').show(0);</script>
        </div>
      </div>
      <div class="clearer"></div>
    </div>
    <div class="related" role="navigation" aria-label="related navigation">
      <h3>Navigation</h3>
      <ul>
        <li class="right" style="margin-right: 10px">
          <a href="../genindex.html" title="General Index"
             >index</a></li>
        <li class="right" >
          <a href="skiboot-5.9.8.html" title="skiboot-5.9.8"
             >next</a> |</li>
        <li class="right" >
          <a href="skiboot-5.9.6.html" title="skiboot-5.9.6"
             >previous</a> |</li>
        <li class="nav-item nav-item-0"><a href="../index.html">skiboot 9eb2874
 documentation</a> &#187;</li>
          <li class="nav-item nav-item-1"><a href="index.html" >Release Notes</a> &#187;</li>
        <li class="nav-item nav-item-this"><a href="">skiboot-5.9.7</a></li> 
      </ul>
    </div>
    <div class="footer" role="contentinfo">
        &#169; Copyright 2016-2017, IBM, others.
      Created using <a href="https://www.sphinx-doc.org/">Sphinx</a> 4.3.2.
    </div>
  </body>
</html>