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<section id="skiboot-6-0-14">
<span id="id1"></span><h1>skiboot-6.0.14<a class="headerlink" href="#skiboot-6-0-14" title="Permalink to this headline">¶</a></h1>
<p>skiboot 6.0.14 was released on Tuesday November 27th, 2018. It replaces
<a class="reference internal" href="skiboot-6.0.13.html#skiboot-6-0-13"><span class="std std-ref">skiboot-6.0.13</span></a> as the current stable release in the 6.0.x series.</p>
<p>It is recommended that 6.0.14 be used instead of any previous 6.0.x version
due to the bug fixes it contains.</p>
<p>Bug fixes included in this release are:</p>
<ul>
<li><p>libflash: Don’t merge ECC-protected ranges</p>
<p>Libflash currently merges contiguous ECC-protected ranges, but doesn’t
check that the ECC bytes at the end of the first and start of the second
range actually match sanely. More importantly, if blocklevel_read() is
called with a position at the start of a partition that is contained
somewhere within a region that has been merged it will update the
position assuming ECC wasn’t being accounted for. This results in the
position being somewhere well after the actual start of the partition
which is incorrect.</p>
<p>For now, remove the code merging ranges. This means more ranges must be
held and checked however it prevents incorrectly reading ECC-correct
regions like below:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="p">[</span> <span class="mf">174.334119453</span><span class="p">,</span><span class="mi">7</span><span class="p">]</span> <span class="n">FLASH</span><span class="p">:</span> <span class="n">CAPP</span> <span class="n">partition</span> <span class="n">has</span> <span class="n">ECC</span>
<span class="p">[</span> <span class="mf">174.437349574</span><span class="p">,</span><span class="mi">3</span><span class="p">]</span> <span class="n">ECC</span><span class="p">:</span> <span class="n">uncorrectable</span> <span class="n">error</span><span class="p">:</span> <span class="n">ffffffffffffffff</span> <span class="n">ff</span>
<span class="p">[</span> <span class="mf">174.437426306</span><span class="p">,</span><span class="mi">3</span><span class="p">]</span> <span class="n">FLASH</span><span class="p">:</span> <span class="n">failed</span> <span class="n">to</span> <span class="n">read</span> <span class="n">the</span> <span class="n">first</span> <span class="mh">0x1000</span> <span class="kn">from</span> <span class="nn">CAPP</span> <span class="n">partition</span><span class="p">,</span> <span class="n">rc</span> <span class="mi">14</span>
<span class="p">[</span> <span class="mf">174.439919343</span><span class="p">,</span><span class="mi">3</span><span class="p">]</span> <span class="n">CAPP</span><span class="p">:</span> <span class="n">Error</span> <span class="n">loading</span> <span class="n">ucode</span> <span class="n">lid</span><span class="o">.</span> <span class="n">index</span><span class="o">=</span><span class="mi">201</span><span class="n">d1</span>
</pre></div>
</div>
</li>
<li><p>ipmi: Reduce ipmi_queue_msg_sync() polling loop time to 10ms.</p>
<p>On a plain boot with hiomap, this reduces the time spent in OPAL
by ~170ms on p9dsu. This is due to hiomap (currently) using
synchronous IPMI messages.</p>
<p>It will also <em>significantly</em> reduce latency on runtime flash
operations with hiomap, as we’ll spend typically 10-20ms in OPAL
rather than 100-200ms. It’s not an ideal solution to that, but
it’s a quick and obvious win for jitter.</p>
</li>
<li><p>opal-prd: Fix opal-prd crash</p>
<p>Crash log without this patch:</p>
<div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">opal</span><span class="o">-</span><span class="n">prd</span><span class="p">[</span><span class="mi">2864</span><span class="p">]:</span> <span class="n">unhandled</span> <span class="n">signal</span> <span class="mi">11</span> <span class="n">at</span> <span class="mi">0000000000029320</span> <span class="n">nip</span> <span class="mi">00000</span> <span class="mi">00102012830</span> <span class="n">lr</span> <span class="mi">0000000102016890</span> <span class="n">code</span> <span class="mi">1</span>
</pre></div>
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