[Okular-devel] [okular] [Bug 318048] okular hangs up for about 2 minutes while loading a new epub

[pritam ghanghas]

https://bugs.kde.org/show_bug.cgi?id=318048

--- Comment #8 from pritam ghanghas <pritam.ghanghas at gmail.com> ---
I tried gdb, first time it was stuck opening, I couldn't go back to terminal to
actually stop it midway, plasma becomes responsive only after the epub has
opened. After several tries I think I was able to get it to stop in the busy
phase, here is the backtrace. I will try installing some other desktop
environment and try then if I can reproduce it. I dont have debug symbols
installed though.

#0  0xb6fa4a85 in QImage::pixel(int, int) const () from
/usr/lib/i386-linux-gnu/libQtGui.so.4
#1  0xb2ed5c5c in Okular::Utils::imageBoundingBox(QImage const*) () from
/usr/lib/libokularcore.so.2abi1
#2  0xb2ebb64c in Okular::Generator::generatePixmap(Okular::PixmapRequest*) ()
   from /usr/lib/libokularcore.so.2abi1
#3  0x00000000 in ?? ()


There was one more strange thing. Once I have opened a epub successfully, If i
close and open the same epub again and again there is no wait/busy period, its
almost immediate. Even when I close okular in between. Its something that
happens first time I open that epub after a cold start. If I open diffrent
epubs every time, I can see the problem.

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