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<h3>
Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f38e8d61f066c3064c600c352eebcd87f28d989a">f38e8d61</a></strong>
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<span>by Daniel Gröber</span>
<i>at 2020-04-07T02:00:05-04:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">rts: ProfHeap: Fix memory leak when not compiled with profiling
If we're doing heap profiling on an unprofiled executable we keep
allocating new space in initEra via nextEra on each profiler run but we
don't have a corresponding freeEra call.
We do free the last era in endHeapProfiling but previous eras will have
been overwritten by initEra and will never get free()ed.
Metric Decrease:
space_leak_001
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<h4>1 changed file:</h4>
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<a href="#49d63c99feec397a2d9c3692f6d9f1c7698c81d0">
rts/ProfHeap.c
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<h4>Changes:</h4>
<li id="49d63c99feec397a2d9c3692f6d9f1c7698c81d0">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f38e8d61f066c3064c600c352eebcd87f28d989a#49d63c99feec397a2d9c3692f6d9f1c7698c81d0"><strong>rts/ProfHeap.c</strong></a>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1336" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1336,12 +1336,12 @@ void heapCensus (Time t)</td>
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<pre style="margin: 0;"> <span id="LC1336" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// future restriction by biography.</span></span>
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<pre style="margin: 0;"> <span id="LC1337" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#if defined(PROFILING)</span></span>
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<pre style="margin: 0;"> <span id="LC1338" class="line" lang="c"> <span class="k" style="font-weight: 600;">if</span> <span class="p">(</span><span class="n" style="color: #333;">RtsFlags</span><span class="p">.</span><span class="n" style="color: #333;">ProfFlags</span><span class="p">.</span><span class="n" style="color: #333;">bioSelector</span> <span class="o" style="font-weight: 600;">==</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC1339" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;"> <span id="LC1340" class="line" lang="c"> <span class="p">{</span></span>
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<pre style="margin: 0;"> <span id="LC1341" class="line" lang="c"> <span class="n" style="color: #333;">freeEra</span><span class="p">(</span><span class="n" style="color: #333;">census</span><span class="p">);</span></span>
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<pre style="margin: 0;"> <span id="LC1342" class="line" lang="c"> <span class="n" style="color: #333;">census</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">hash</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC1343" class="line" lang="c"> <span class="n" style="color: #333;">census</span><span class="o" style="font-weight: 600;">-></span><span class="n" style="color: #333;">arena</span> <span class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">NULL</span><span class="p">;</span></span>
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<pre style="margin: 0;"> <span id="LC1344" class="line" lang="c"> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC1344" class="line" lang="c"><span class="cp" style="color: #999; font-weight: 600;">#endif</span></span>
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<pre style="margin: 0;"> <span id="LC1345" class="line" lang="c"></span>
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<pre style="margin: 0;"> <span id="LC1346" class="line" lang="c"> <span class="c1" style="color: #998; font-style: italic;">// we're into the next time period now</span></span>
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<pre style="margin: 0;"> <span id="LC1347" class="line" lang="c"> <span class="n" style="color: #333;">nextEra</span><span class="p">();</span></span>
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