Use HEAPCHECK=normal to analysis WebKit on Ubuntu, But segment fault crash

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Use HEAPCHECK=normal to analysis WebKit on Ubuntu, But segment fault crash

(gdb) r
Starting program: /opt/webkit-201203/WebKitBuild/Release/bin/QtTestBrowser 
-platform xlibgl -gl-viewport -graphicsbased -viewport-update-mode Full 
http://localhost/html5_launcher/

Program received signal SIGSEGV, Segmentation fault.
0x00010c46 in ?? ()
(gdb) bt
#0  0x00010c46 in ?? ()
Backtrace stopped: Not enough registers or memory available to unwind further

Original issue reported on code.google.com by ctengc...@gmail.com on 19 Jun 2013 at 8:42

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Original comment by alkondratenko on 6 Jul 2013 at 11:16

• Changed state: Accepted

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The memory leak had been found to be a Qt bug in fbo(frame buffer object) pool 
implementation.

The is due to the software OpenGL driver(the machine has no real graphics gpu 
hardware) which doesn't support `multi-sample` feature.

My question is: why does HEAPCHECK tool fail in this situation?

Original comment by ctengc...@gmail.com on 9 Jul 2013 at 1:34

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Valgrind can work in this situation, but it only found a lot of small 
"possible" leaks which were in fact not related.

I've an idea: could HEAPCHECK tool only check memory blocks which size is > 
given threshold? For wasting extra memory recording small-size blocks is no 
useful.

Original comment by ctengc...@gmail.com on 9 Jul 2013 at 1:39

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> I've an idea: could HEAPCHECK tool only check memory blocks which size is > 
given threshold? For wasting extra memory recording small-size blocks is no 
useful.

If you contribute such change we'll gladly accept it :)

Original comment by alkondratenko on 24 Jul 2013 at 5:10