I have created a new project from scratch and modified the bare minimum I could to make sure I didn't introduce a bug.<br><br>This project uses the original source code for the declarativewebview from Qt4.7 (I did not see any difference when compared to 4.8). The only change is that it offers a different user agent so google will return the Android version.<br>
<br>I can reproduce the crash by:<br>1. login to a gmail account<br>2. go to inbox<br>3. switch to the task manager<br>4. switch back to the application<br>5. click back to menu and select another folder (it seems that is related to triggering a reload of the page but the exception seems to be related to QPaint)<br>
<br>Also, it crashes almost every time I switch to the task manager while loading something.<br><br>The source and a deb file can be found at <a href="http://www.crochik.com/gapp/webviewcrash.zip">http://www.crochik.com/gapp/webviewcrash.zip</a><br>
<br>Any help greatly appreciated since the application is pretty useless you can't leave it running.<br><br>Thanks, <br>Felipe <br><br><br><div class="gmail_quote">On Sat, Nov 5, 2011 at 7:03 PM, Nicolai Hess <span dir="ltr"><<a href="mailto:nicolaihess@web.de">nicolaihess@web.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div><div></div><div class="h5"><br><br><div class="gmail_quote">2011/11/5 Felipe Crochik <span dir="ltr"><<a href="mailto:felipe@crochik.com" target="_blank">felipe@crochik.com</a>></span><br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
Unfortunately It didn't do the trick.... I can't tell any difference ...still crashes with the QPainter::save().... <br><br>Please let me know if any of you have any more ideas... I will play a little more tomorrow.<span><font color="#888888"><br>
<br>Felipe</font></span><div><div><br><br><div class="gmail_quote">2011/11/5 Kristóf Timur <span dir="ltr"><<a href="mailto:timur@sch.bme.hu" target="_blank">timur@sch.bme.hu</a>></span><br>
<blockquote class="gmail_quote" style="margin:0pt 0pt 0pt 0.8ex;border-left:1px solid rgb(204, 204, 204);padding-left:1ex">
<div dir="ltr">
<div dir="ltr">
<div style="font-family:'Calibri';color:rgb(0, 0, 0);font-size:12pt">
<div>That’s not how it’s done.</div>
<div> </div>
<div>1. In your .pro file, add:</div>
<div>QT += opengl</div>
<div> </div>
<div>2. at the top of your cpp, add:</div>
<div>#include <QGLWidget></div>
<div> </div>
<div>3. when you initialize your QDeclarativeView:</div>
<div>QGLWidget glWidget;</div>
<div>QDeclarativeView view;</div>
<div>view.setViewport(&glWidget);</div>
<div> </div>
<div>Cheers,</div>
<div>Timur</div>
<div style="font-style:normal;display:inline;font-family:'Calibri';color:rgb(0, 0, 0);font-size:small;font-weight:normal;text-decoration:none">
<div style="font:10pt tahoma">
<div><font face="Calibri" size="3"></font> </div>
<div style="background:none repeat scroll 0% 0% rgb(245, 245, 245)">
<div><b>From:</b> <a title="felipe@crochik.com" href="mailto:felipe@crochik.com" target="_blank">Felipe Crochik</a> </div>
<div><b>Sent:</b> Saturday, November 05, 2011 11:26 PM</div>
<div><b>To:</b> <a title="nicolaihess@web.de" href="mailto:nicolaihess@web.de" target="_blank">nicolaihess@web.de</a> </div>
<div><b>Cc:</b> <a title="maemo-developers@maemo.org" href="mailto:maemo-developers@maemo.org" target="_blank">maemo-developers</a> </div>
<div><b>Subject:</b> Re: N950 SEGFAULT - help?</div></div></div>
<div> </div></div>
<div style="font-style:normal;display:inline;font-family:'Calibri';color:rgb(0, 0, 0);font-size:small;font-weight:normal;text-decoration:none"><div><div></div><div>Nicolai,
<br><br>I tried the application using (I assume that is what you
meant):<br><span style="color:rgb(128, 0, 128)">QApplication</span><span style="color:rgb(0, 0, 0)">::</span>setGraphicsSystem<span style="color:rgb(0, 0, 0)">(</span><span style="color:rgb(0, 128, 0)">"opengl"</span><span style="color:rgb(0, 0, 0)">);<br>
<br>and haven't been able to crash the application
but it gets really slow and unresponsive. Also I get these error messages on my
log:<br></span><span style="color:rgb(0, 128, 0)"></span><br><span style="font-family:'Courier';color:rgb(170, 0, 0);font-size:10pt">Valid eglHandle
received but not running with meego compatible graphicssystem.<br><br><span style="color:rgb(0, 0, 0)">Any ideas?</span><br style="color:rgb(0, 0, 0)"><br style="color:rgb(0, 0, 0)"><span style="color:rgb(0, 0, 0)">Thanks, </span><br style="color:rgb(0, 0, 0)">
<span style="color:rgb(0, 0, 0)">Felipe</span><br style="color:rgb(0, 0, 0)"><br><br></span><br>
<div class="gmail_quote">2011/10/7 Nicolai Hess <span dir="ltr"><<a href="mailto:nicolaihess@web.de" target="_blank">nicolaihess@web.de</a>></span><br>
<blockquote style="border-left:1px solid rgb(204, 204, 204);margin:0px 0px 0px 0.8ex;padding-left:1ex" class="gmail_quote">Have you tried to use a QGLWidget for the qmlviewer
?<br>This works for the QML Camera element which has the <br>same behavior,
segfaults when application moved to background.
<div>
<div></div>
<div><br><br>
<div class="gmail_quote">2011/10/7 Felipe Crochik <span dir="ltr"><<a href="mailto:felipe@crochik.com" target="_blank">felipe@crochik.com</a>></span><br>
<blockquote style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex" class="gmail_quote">That is the "next" problem. They are not available - maybe
I need to add some extra repository? sorry if I missed some obvious
"development" required step.... It is hard to start over!
<div>
<div></div>
<div><br><br>
<div class="gmail_quote">2011/10/7 Daniil Ivanov <span dir="ltr"><<a href="mailto:daniil.ivanov@gmail.com" target="_blank">daniil.ivanov@gmail.com</a>></span><br>
<blockquote style="border-left:1px solid rgb(204, 204, 204);margin:0pt 0pt 0pt 0.8ex;padding-left:1ex" class="gmail_quote">apt-get install libqtwebkit4-dbg<br>or<br>apt-get
install libqt4-webkit-dbg.<br><br>2011/10/7 Ивайло Димитров <<a href="mailto:freemangordon@abv.bg" target="_blank">freemangordon@abv.bg</a>>:<br>
<div>
<div></div>
<div>> Why not install Qt debug symbols on the device and run/attach to
your<br>> program there under gdb?<br>><br>><br>><br>>
-------- Оригинално писмо --------<br>> От: Felipe Crochik<br>>
Относно: N950 SEGFAULT - help?<br>> До: <a href="mailto:maemo-developers@maemo.org" target="_blank">maemo-developers@maemo.org</a><br>> Изпратено на: Петък,
2011, Октомври 7 05:20:55 EEST<br>> I hit a wall with my application so
I am looking for someone to help<br>> everywhere I can.<br>><br>>
The short version: how can I get qt creator to debug my application on
the<br>> device. Right now I get CRC mismatch warnings for all
libraries and I assume<br>> this is what prevents me to see any trace
information<br>><br>> That is what I get when I start to
debug:<br>> ...<br>> the debug information found in<br>>
"c:/qtsdk/madde/sysroots/harmattan-nokia-meego-arm-sysroot-1134-slim/usr/lib/libpvrPVR2D_DRI2WSEGL_r125.so"<br>>
does not match<br>>
"c:/qtsdk/madde/sysroots/harmattan-nokia-meego-arm-sysroot-1134-slim/usr/lib/libpvrPVR2D_DRI2WSEGL.so"<br>>
(CRC mismatch).<br>><br>> the debug information found in<br>>
"c:/qtsdk/madde/sysroots/harmattan-nokia-meego-arm-sysroot-1134-slim/usr/lib/libpvr2d_r125.so"<br>>
does not match<br>>
"c:/qtsdk/madde/sysroots/harmattan-nokia-meego-arm-sysroot-1134-slim/usr/lib/libpvr2d.so"<br>>
(CRC mismatch).<br>><br>> ...<br>><br>> I assume I need to
install "debug symbols/versions" for the qt libraries on<br>> the
device somehow. Am I right? How can I accomplish this?<br>><br>> The
long version:<br>><br>> My applications uses qml\webview and
everything works fine until I swipe out<br>> of my application and then
later come back to it. With one click or two I<br>> get a segfault.
This is all the information that I managed to get running<br>> gdb on
the device:<br>><br>> (gdb) backtrace<br>> #0 0x42068924 in
QPainter::save() () from /usr/lib/libQtGui.so.4<br>> #1
0x48ec294c in ?? () from /usr/lib/libQtWebKit.so.4<br>> #2
0x48ec294c in ?? () from /usr/lib/libQtWebKit.so.4<br>><br>> Program
received signal SIGSEGV, Segmentation fault.<br>><br>> Any
suggestions?<br>><br>> Thanks in advance,<br>>
Felipe<br>><br></div></div>>
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><br>><br></blockquote></div>
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<br></blockquote></div>
<div> </div></div></div></blockquote></div><br>
</div></div><p>
</p><hr><div>
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</div><p></p></div></div></div></div>
</blockquote></div><br>
</div></div></blockquote></div><br><br></div></div>Can you give a link to your source.<br><font color="#888888"><br>nicolai<br>
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