Crash on run

[krc]

I saw phototonic in Debian sid and decided to try it, but found that it crashes on startup. I filed Debian bug 763950 (https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=763950), but it became apparent it is an upstream issue. I downloaded and compiled 1.4 myself and I get the same crash.

krc@ken:$ phototonic
*** Error in `/opt/fail/usr/bin/phototonic': free(): invalid pointer: 0x00007ffed899b5a0 ***
Aborted
krc@ken:$

when I built with debugging symbols and used gdb:

gdb /opt/fail/usr/bin/phototonic

Reading symbols from /opt/fail/usr/bin/phototonic...done.
(gdb) run
Starting program: /opt/fail/usr/bin/phototonic
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[New Thread 0x7fffec162700 (LWP 14905)]
*** Error in `/opt/fail/usr/bin/phototonic': free(): invalid pointer: 0x00007fffeeddd5a0 ***

Program received signal SIGABRT, Aborted.
0x00007ffff5248077 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
56 ../nptl/sysdeps/unix/sysv/linux/raise.c: No such file or directory.
(gdb)

Valgrind:

krc@ken:~$ valgrind phototonic
==20744== Memcheck, a memory error detector
==20744== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al.
==20744== Using Valgrind-3.10.0 and LibVEX; rerun with -h for copyright info
==20744== Command: /opt/fail/usr/bin/phototonic
==20744==
==20744== Invalid free() / delete / delete[] / realloc()
==20744== at 0x4C29E90: free (vg_replace_malloc.c:473)
==20744== by 0xE06670E: ??? (in /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so)
==20744== by 0xE067F4F: ??? (in /usr/lib/x86_64-linux-gnu/qt5/plugins/platforms/libqxcb.so)
==20744== by 0x5CE86C3: ??? (in /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.3.2)
==20744== by 0x5CEB0AC: QFontDatabase::findFont(int, QFontPrivate const_, QFontDef const&, bool, bool) (in /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.3.2)
==20744== by 0x5CEB9D0: QFontDatabase::load(QFontPrivate const_, int) (in /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.3.2)
==20744== by 0x5CC7208: QFontPrivate::engineForScript(int) const (in /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.3.2)
==20744== by 0x5CE0552: QFontMetrics::height() const (in /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5.3.2)
==20744== by 0x5682A20: QHeaderView::minimumSectionSize() const (in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.3.2)
==20744== by 0x5682C89: QHeaderView::QHeaderView(Qt::Orientation, QWidget_) (in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.3.2)
==20744== by 0x56A3E5C: ??? (in /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5.3.2)
==20744== by 0x458F67: InfoView::InfoView(QWidget_) (infoview.cpp:21)
==20744== Address 0xe0a45a0 is not stack'd, malloc'd or (recently) free'd
==20744==
==20744==
==20744== More than 10000000 total errors detected. I'm not reporting any more.
==20744== Final error counts will be inaccurate. Go fix your program!
==20744== Rerun with --error-limit=no to disable this cutoff. Note
==20744== that errors may occur in your program without prior warning from
==20744== Valgrind, because errors are no longer being displayed.
==20744==

^C==20744==
==20744== HEAP SUMMARY:
==20744== in use at exit: 634,131 bytes in 9,399 blocks
==20744== total heap usage: 29,454 allocs, 12,504,465 frees, 3,651,187 bytes allocated
==20744==
==20744== LEAK SUMMARY:
==20744== definitely lost: 2,564 bytes in 13 blocks
==20744== indirectly lost: 7,348 bytes in 296 blocks
==20744== possibly lost: 6,065 bytes in 102 blocks
==20744== still reachable: 618,154 bytes in 8,988 blocks
==20744== suppressed: 0 bytes in 0 blocks
==20744== Rerun with --leak-check=full to see details of leaked memory
==20744==
==20744== For counts of detected and suppressed errors, rerun with: -v
==20744== ERROR SUMMARY: 10000000 errors from 1 contexts (suppressed: 0 from 0)
Killed

As per my debian report, my system info is:

-- System Information:
Debian Release: jessie/sid
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.16-2-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages phototonic depends on:
ii libc6 2.19-11
ii libexiv2-13 0.24-4
ii libgcc1 1:4.9.1-16
ii libgl1-mesa-glx [libgl1] 10.2.6-1
ii libqt5core5a 5.3.2+dfsg-3
ii libqt5gui5 5.3.2+dfsg-3
ii libqt5widgets5 5.3.2+dfsg-3
ii libstdc++6 4.9.1-16

[krc]

FYI just compiled from git master just in case, same errors.

[JHooverman]

What did you do before Phototonic crashes?

[krc]

er, nothing? I never so much as see a window come up. Run, crash.

[oferkv]

Thank you for this detailed report.

[oferkv]

Hi krc, from the stack trace, (which is Qt code) I am guessing that there is a problem with a specific font.
Are other Qt applications work fine on your setup?
Can you try changing the font/theme, so we can make sure its not related?
Thanks!

[krc]

Hm, seems my qt install is borked in some way? anyway, all qt5 apps are crashing the same way... I just don't run any that often, so I didn't realize. Sorry, not your issue after all!

[oferkv]

Cool, thanks.