<div dir="ltr">The relevant response from John H was:<div><br></div><div>"<span style="font-size:12.8px">Your stack indicates the Qt crashed trying to draw an ellipse, as</span></div><span style="font-size:12.8px">invoked by QGIS while attempting to start rendering of a marker symbol.</span><br style="font-size:12.8px"><span style="font-size:12.8px">This is probably a straightforward crash to resolve by someone familiar</span><br style="font-size:12.8px"><div><span style="font-size:12.8px">with the code.</span>"</div><div><br></div><div>I'm new to using these lists and fairly new to QGIS. Should I file this as a bug with the QGIS group?</div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Mar 29, 2017 at 6:37 PM, NPE NewPathEconometrics <span dir="ltr"><<a href="mailto:newpatheconometrics@gmail.com" target="_blank">newpatheconometrics@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Being new to using these lists, I accidentally responded just to a person, and not the list, so I'm forwarding my response to the list<br><div class="gmail_quote"><span class="">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">NPE NewPathEconometrics</b> <span dir="ltr"><<a href="mailto:newpatheconometrics@gmail.com" target="_blank">newpatheconometrics@gmail.com</a><wbr>></span><br>Date: Sun, Mar 26, 2017 at 10:16 AM<br>Subject: Re: [Qgis-user] QGIS 2.18.2 Crashes often on Mac (Yosemite 10.10.5)<br></span><div><div class="h5">To: John Hawkinson <<a href="mailto:jhawk@mit.edu" target="_blank">jhawk@mit.edu</a>><br><br><br><div dir="ltr">Thank you for the thoughtful suggestions. I don't have a lot of experience digging into these types of crash reports, and I wasn't sure if the information in that report would be of interest to anybody. I pasted the full report into pastebin as you suggested (thanks for that idea, I had not heard of pastebin before).<div><br></div><div><a href="http://pastebin.com/Jcb4FH04" target="_blank">http://pastebin.com/Jcb4FH04</a><br></div><div><br></div><div>This time, it lists thread 27 as the crashed thread. I looked through the report for details of that, and see this information, thought I don't really understand what this tells me, or how to resolve this.</div><div><br></div><div><ol class="m_-2857407589184752275m_685435208669885820gmail-text" style="color:rgb(172,172,172);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(247,247,247);margin:0px;padding:0px 0px 0px 55px;font-family:consolas,menlo,monaco,"lucida console","liberation mono","dejavu sans mono","bitstream vera sans mono",monospace,serif;font-size:12px"><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">Thread 27 Crashed:: Thread (pooled)</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">0 QtGui 0x0000000111fb946b QPaintEngine::drawEllipse(QRec<wbr>tF const&) + 75</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">1 QtGui 0x0000000111fb8409 QPaintEngine::drawEllipse(QRec<wbr>t const&) + 73</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li2" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de2" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">2 QtGui 0x0000000111fccd0c QPainter::begin(QPaintDevice*) + 476</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">3 org.qgis.qgis2_core 0x0000000110ea178b QgsSimpleMarkerSymbolLayerV2::<wbr>prepareCache(QgsSymbolV2Render<wbr>Context&) + 405</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">4 org.qgis.qgis2_core 0x0000000110ea150e QgsSimpleMarkerSymbolLayerV2::<wbr>startRender(QgsSymbolV2RenderC<wbr>ontext&) + 1276</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">5 org.qgis.qgis2_core 0x0000000110f0f6fa QgsSymbolV2::startRender(QgsRe<wbr>nderContext&, QgsFields const*) + 660</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">6 org.qgis.qgis2_core 0x0000000110e2ee5a QgsCategorizedSymbolRendererV2<wbr>::startRender(QgsRenderContext<wbr>&, QgsFields const&) + 548</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li2" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de2" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">7 org.qgis.qgis2_core 0x000000011120f000 QgsVectorLayerRenderer::render<wbr>() + 194</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">8 org.qgis.qgis2_core 0x00000001110c15e3 QgsMapRendererParallelJob::ren<wbr>derLayerStatic(LayerRenderJob&<wbr>) + 59</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">9 org.qgis.qgis2_core 0x00000001110c1fb8 QtConcurrent::MapKernel<QList<<wbr>LayerRenderJob>::iterator, QtConcurrent::FunctionWrapper1<wbr><void, LayerRenderJob&> >::runIteration(QList<LayerRen<wbr>derJob>::iterator, int, void*) + 16</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">10 org.qgis.qgis2_core 0x00000001110c1ffc QtConcurrent::MapKernel<QList<<wbr>LayerRenderJob>::iterator, QtConcurrent::FunctionWrapper1<wbr><void, LayerRenderJob&> >::runIterations(QList<LayerRe<wbr>nderJob>::iterator, int, int, void*) + 64</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">11 org.qgis.qgis2_core 0x00000001110c213b QtConcurrent::IterateKernel<QL<wbr>ist<LayerRenderJob>::iterator, void>::forThreadFunction() + 227</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li2" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de2" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">12 QtCore 0x0000000111a97559 QtConcurrent::ThreadEngineBase<wbr>::run() + 57</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">13 QtCore 0x0000000111a9a32d QThreadPoolThread::run() + 205</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">14 QtCore 0x0000000111aa73f4 QThreadPrivate::start(void*) + 356</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">15 libsystem_pthread.dylib 0x00007fff8e6dd05a _pthread_body + 131</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">16 libsystem_pthread.dylib 0x00007fff8e6dcfd7 _pthread_start + 176</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li2" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de2" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">17 libsystem_pthread.dylib 0x00007fff8e6da3ed thread_start + 13</div></li><li class="m_-2857407589184752275m_685435208669885820gmail-li1" style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(255,255,255)"><div class="m_-2857407589184752275m_685435208669885820gmail-de1" style="padding:0px 8px;vertical-align:top;color:rgb(51,51,51);border-left:1px solid rgb(221,221,221);background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;background-color:rgb(248,248,248)"> </div></li></ol></div><div><br></div></div><div class="m_-2857407589184752275HOEnZb"><div class="m_-2857407589184752275h5"><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Mar 25, 2017 at 4:18 PM, John Hawkinson <span dir="ltr"><<a href="mailto:jhawk@mit.edu" target="_blank">jhawk@mit.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I don't have a lot of QGIS experience (none prior to 2.18), and I have seen<br>
more crashes than I would like (mostly related to Cocoa), but I would<br>
offer some general comments:<br>
<br>
> I did note this warning there: *WARNING: QGIS will crash if Qt4<br>
<span>> developer components are installed in the standard /Developer<br>
> location. Either rename /Developer/Applications/Qt/Plu<wbr>gins or<br>
</span>> uninstall Qt before running QGIS.*<br>
<span>><br>
> I don't have Qt4 developer installed there, but I'm wondering why QGIS is<br>
> crashing so often, and this warning is the best clue I have.<br>
<br>
</span>This is not related. Both because you don't have Qt4 developer stuff<br>
installed, and also because I believe the warning is about a deterministic<br>
crash -- that QGIS will *always* crash if those incompatible components are<br>
installed, not that it will be unstable, which is what you are saying.<br>
<span><br>
> I did put a post on Stack Exchange over a week ago, with some of the crash<br>
> information:<br>
> <a href="http://gis.stackexchange.com/questions/230576/qgis-crashes-frequently-since-upgrading-to-2-18-2-on-mac" rel="noreferrer" target="_blank">http://gis.stackexchange.com/q<wbr>uestions/230576/qgis-crashes-f<wbr>requently-since-upgrading-to-2<wbr>-18-2-on-mac</a><br>
> No responses from that post.<br>
<br>
</span>There is not enough information in your post to be useful.<br>
You write:<br>
<br>
| (I'm not pasting the entire report because it is pretty long):<br>
<br>
You should probably get over this, or at least get some background<br>
on what information is important. It is not always the beginning<br>
of the report. It might be helpful to post the report to <a href="http://pastebin.com" rel="noreferrer" target="_blank">pastebin.com</a><br>
or <a href="http://gist.github.com" rel="noreferrer" target="_blank">gist.github.com</a> and provide a link, though.<br>
<br>
Specifically, when your crash report says:<br>
<br>
> Crashed Thread: 18 Thread (pooled)<br>
<br>
Then the stack trace for Thread 18 is what's of interest. In your<br>
report, you included only the first thread (Thread 0), and only the<br>
first 11 (0-10) frames of that stack. To be helpful, you should include<br>
the entirety of the stack of the thread in question.<br>
<br>
--<a href="mailto:jhawk@mit.edu" target="_blank">jhawk@mit.edu</a><br>
<span class="m_-2857407589184752275m_685435208669885820HOEnZb"><font color="#888888"> John Hawkinson<br>
</font></span></blockquote></div><br></div>
</div></div></div></div></div><br></div>
</blockquote></div><br></div>