[Lazarus] [Qt] Random issues at startup

Vojtěch Čihák vojtech.cihak at atlas.cz
Mon Feb 23 15:10:00 CET 2015

I work on app. (~20000 lines) and sometimes at startup (10 - 15% cases of hiting F9) I got this message in console:
malloc(): smallbin double linked list corrupted: 0x00000000010ee860 ***
and it crashes.
(Note that it is only in Qt, the same app. in GTK2 is  OK.)
CallStack window doesn't show me anything.Google doesn't help much, I didn't find anything Lazarus-related but I found a few Qt related topics - one of them recommende valgrind.So I tried valgrind and KCacheGrind$ valgrind --tool=callgrind ./myprogrambut it also didn't help me much (maybe I do it wrong ?). The last line of output is pointing to libQtCore.so.4.8.6I don't want to publish code yet and I cannot reproduce with a small demo.Thanks for help,Vojtěch
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