armin@ubuntu:~$ cd Schreibtisch/ armin@ubuntu:~/Schreibtisch$ DISPLAY= gdb --args /opt/calibre/ebook-meta db030-473.epub --get-cover x.jpg GNU gdb (Ubuntu 7.7-0ubuntu3.1) 7.7 Copyright (C) 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from /opt/calibre/ebook-meta...(no debugging symbols found)...done. (gdb) run Starting program: /opt/calibre/ebook-meta db030-473.epub --get-cover x.jpg process 4391 is executing new program: /opt/calibre/bin/ebook-meta [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1". [New Thread 0x7fffdfe51700 (LWP 4397)] libpng warning: iCCP: Not recognizing known sRGB profile that has been edited [New Thread 0x7fff9d629700 (LWP 4398)] [New Thread 0x7fff9ce28700 (LWP 4399)] Program received signal SIGSEGV, Segmentation fault. 0x00007fffe0551faa in (anonymous namespace)::defaultHintStyleFromMatch(QFont::HintingPreference, _FcPattern*) [clone .part.10] () from /opt/calibre/lib/python2.7/site-packages/calibre/plugins/libheadless.so (gdb) bt #0 0x00007fffe0551faa in (anonymous namespace)::defaultHintStyleFromMatch(QFont::HintingPreference, _FcPattern*) [clone .part.10] () from /opt/calibre/lib/python2.7/site-packages/calibre/plugins/libheadless.so #1 0x00007fffe0552a59 in QFontconfigDatabase::fontEngine(QFontDef const&, void*) () from /opt/calibre/lib/python2.7/site-packages/calibre/plugins/libheadless.so #2 0x00007fffebebaf69 in ?? () from /opt/calibre/lib/libQt5Gui.so.5 #3 0x00007fffebebb2d2 in QFontDatabase::findFont(int, QFontPrivate const*, QFontDef const&, bool) () from /opt/calibre/lib/libQt5Gui.so.5 #4 0x00007fffebebbeac in QFontDatabase::load(QFontPrivate const*, int) () from /opt/calibre/lib/libQt5Gui.so.5 #5 0x00007fffebe98db7 in QFontPrivate::engineForScript(int) const () from /opt/calibre/lib/libQt5Gui.so.5 #6 0x00007fffebf6365c in QRawFont::fromFont(QFont const&, QFontDatabase::WritingSystem) () from /opt/calibre/lib/libQt5Gui.so.5 #7 0x00007fffe6c6cb6a in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #8 0x00007fffe6c96c4c in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #9 0x00007fffe6b62953 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #10 0x00007fffe6b6398e in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #11 0x00007fffe78276a9 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #12 0x00007fffe789b793 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #13 0x00007fffe6b63a72 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #14 0x00007fffe6b51ca9 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 ---Type to continue, or q to quit--- #15 0x00007fffe75cd59e in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #16 0x00007fffe75cd74e in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #17 0x00007fffe7789b94 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #18 0x00007fffe778809c in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #19 0x00007fffe77b332a in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #20 0x00007fffe77d2a55 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #21 0x00007fffe77d72dd in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #22 0x00007fffe77e7334 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #23 0x00007fffe77e8e59 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #24 0x00007fffe77e983f in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #25 0x00007fffe77ee456 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #26 0x00007fffe76d2cc4 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #27 0x00007fffe77edb69 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #28 0x00007fffe77ee1d5 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #29 0x00007fffe77ee6d0 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #30 0x00007fffe76d2cc4 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #31 0x00007fffe77edb69 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #32 0x00007fffe77ee1d5 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #33 0x00007fffe77ee6d0 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #34 0x00007fffe76d2cc4 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #35 0x00007fffe77edb69 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #36 0x00007fffe77ee1d5 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #37 0x00007fffe77ee6d0 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 ---Type to continue, or q to quit--- #38 0x00007fffe76d2cc4 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #39 0x00007fffe7709789 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #40 0x00007fffe773edca in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #41 0x00007fffe6b2231d in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #42 0x00007fffe792c091 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #43 0x00007fffe6a847e1 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #44 0x00007fffe6a6c7d5 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #45 0x00007fffe6aaf4bb in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #46 0x00007fffe6aaf869 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #47 0x00007fffe6c91453 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #48 0x00007fffe6c91022 in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #49 0x00007fffe6c9172f in ?? () from /opt/calibre/lib/libQt5WebKit.so.5 #50 0x00007fffed32c583 in QMetaObject::activate(QObject*, int, int, void**) () from /opt/calibre/lib/libQt5Core.so.5 #51 0x00007fffed331006 in QObject::event(QEvent*) () from /opt/calibre/lib/libQt5Core.so.5 #52 0x00007fffe2d1726c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /opt/calibre/lib/libQt5Widgets.so.5 #53 0x00007fffe2d1ab76 in QApplication::notify(QObject*, QEvent*) () from /opt/calibre/lib/libQt5Widgets.so.5 #54 0x00007fffe35c1e8e in sipQApplication::notify(QObject*, QEvent*) () from /opt/calibre/lib/python2.7/site-packages/PyQt5/QtWidgets.so #55 0x00007fffed2fb406 in QCoreApplication::notifyInternal(QObject*, QEvent*) ---Type to continue, or q to quit--- () from /opt/calibre/lib/libQt5Core.so.5 #56 0x00007fffed2fddf0 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /opt/calibre/lib/libQt5Core.so.5 #57 0x00007fffed3572e3 in ?? () from /opt/calibre/lib/libQt5Core.so.5 #58 0x00007fffecb1f91e in g_main_dispatch () from /opt/calibre/lib/libglib-2.0.so.0 #59 0x00007fffecb20695 in g_main_context_dispatch () from /opt/calibre/lib/libglib-2.0.so.0 #60 0x00007fffecb20885 in g_main_context_iterate () from /opt/calibre/lib/libglib-2.0.so.0 #61 0x00007fffecb20949 in g_main_context_iteration () from /opt/calibre/lib/libglib-2.0.so.0 #62 0x00007fffed35773c in QEventDispatcherGlib::processEvents(QFlags) () from /opt/calibre/lib/libQt5Core.so.5 #63 0x00007fffed2f9ae3 in QEventLoop::exec(QFlags) () from /opt/calibre/lib/libQt5Core.so.5 #64 0x00007fffed7f21f2 in meth_QEventLoop_exec_ () from /opt/calibre/lib/python2.7/site-packages/PyQt5/QtCore.so #65 0x00007ffff751df32 in call_function (oparg=, pp_stack=0x7fffffffbd90) at Python/ceval.c:4033 #66 PyEval_EvalFrameEx (f=f@entry=0x1098d70, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #67 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, ---Type to continue, or q to quit--- globals=, locals=locals@entry=0x0, args=, argcount=3, kws=0x7fffe0b5fc28, kwcount=0, defs=0x7ffff2d4eb58, defcount=3, closure=0x0) at Python/ceval.c:3265 #68 0x00007ffff751ca2d in fast_function (nk=, na=, n=3, pp_stack=0x7fffffffc080, func=0x7ffff35afd70) at Python/ceval.c:4129 #69 call_function (oparg=, pp_stack=0x7fffffffc080) at Python/ceval.c:4054 #70 PyEval_EvalFrameEx (f=f@entry=0x7fffe0b5fa50, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #71 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=2, kws=0x104f370, kwcount=0, defs=0x7ffff2d5a8d8, defcount=2, closure=0x0) at Python/ceval.c:3265 #72 0x00007ffff751ca2d in fast_function (nk=, na=, n=2, pp_stack=0x7fffffffc370, func=0x7ffff35afcf8) at Python/ceval.c:4129 #73 call_function (oparg=, pp_stack=0x7fffffffc370) at Python/ceval.c:4054 #74 PyEval_EvalFrameEx (f=f@entry=0x104f150, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #75 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, ---Type to continue, or q to quit--- argcount=3, kws=0x1089870, kwcount=1, defs=0x7fffe0b5d5e8, defcount=1, closure=0x0) at Python/ceval.c:3265 #76 0x00007ffff751ca2d in fast_function (nk=, na=, n=5, pp_stack=0x7fffffffc660, func=0x7fffe0b5b2a8) at Python/ceval.c:4129 #77 call_function (oparg=, pp_stack=0x7fffffffc660) at Python/ceval.c:4054 #78 PyEval_EvalFrameEx (f=f@entry=0x1089680, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #79 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=3, kws=0x7fffe1a7ec18, kwcount=1, defs=0x7fffe0b5d628, defcount=1, closure=0x0) at Python/ceval.c:3265 #80 0x00007ffff751ca2d in fast_function (nk=, na=, n=5, pp_stack=0x7fffffffc950, func=0x7fffe0b5b410) at Python/ceval.c:4129 #81 call_function (oparg=, pp_stack=0x7fffffffc950) at Python/ceval.c:4054 #82 PyEval_EvalFrameEx (f=f@entry=0x7fffe1a7ea50, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #83 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=1, kws=0x63f660, kwcount=0, defs=0x7fffe0b5d668, defcount=1, ---Type to continue, or q to quit--- closure=0x0) at Python/ceval.c:3265 #84 0x00007ffff751ca2d in fast_function (nk=, na=, n=1, pp_stack=0x7fffffffcc40, func=0x7fffe0b5b488) at Python/ceval.c:4129 #85 call_function (oparg=, pp_stack=0x7fffffffcc40) at Python/ceval.c:4054 #86 PyEval_EvalFrameEx (f=, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #87 0x00007ffff751e229 in fast_function (nk=, na=, n=3, pp_stack=0x7fffffffce80, func=0x7ffff2b75230) at Python/ceval.c:4119 #88 call_function (oparg=, pp_stack=0x7fffffffce80) at Python/ceval.c:4054 #89 PyEval_EvalFrameEx (f=f@entry=0x1029c40, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #90 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=2, kws=0x9494a0, kwcount=0, defs=0x0, defcount=0, closure=0x0) at Python/ceval.c:3265 #91 0x00007ffff751ca2d in fast_function (nk=, na=, n=2, pp_stack=0x7fffffffd170, func=0x7ffff2b77848) at Python/ceval.c:4129 #92 call_function (oparg=, pp_stack=0x7fffffffd170) ---Type to continue, or q to quit--- at Python/ceval.c:4054 #93 PyEval_EvalFrameEx (f=f@entry=0x9492c0, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #94 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=5, kws=0x7fffe1a7e828, kwcount=0, defs=0x7fffe26c9e78, defcount=2, closure=0x0) at Python/ceval.c:3265 #95 0x00007ffff751ca2d in fast_function (nk=, na=, n=5, pp_stack=0x7fffffffd460, func=0x7fffe1592848) at Python/ceval.c:4129 #96 call_function (oparg=, pp_stack=0x7fffffffd460) at Python/ceval.c:4054 #97 PyEval_EvalFrameEx (f=f@entry=0x7fffe1a7e650, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #98 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=2, kws=0x101c4f0, kwcount=1, defs=0x7fffe15e8ed8, defcount=4, closure=0x0) at Python/ceval.c:3265 #99 0x00007ffff751ca2d in fast_function (nk=, na=, n=4, pp_stack=0x7fffffffd750, func=0x7fffe15927d0) at Python/ceval.c:4129 #100 call_function (oparg=, pp_stack=0x7fffffffd750) at Python/ceval.c:4054 ---Type to continue, or q to quit--- #101 PyEval_EvalFrameEx (f=f@entry=0x101c2f0, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #102 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=, argcount=0, kws=0x7ffff7f109b8, kwcount=0, defs=0x7ffff2ce6228, defcount=1, closure=0x0) at Python/ceval.c:3265 #103 0x00007ffff751ca2d in fast_function (nk=, na=, n=0, pp_stack=0x7fffffffda40, func=0x7fffe0b2b5f0) at Python/ceval.c:4129 #104 call_function (oparg=, pp_stack=0x7fffffffda40) at Python/ceval.c:4054 #105 PyEval_EvalFrameEx (f=f@entry=0x7ffff7f10810, throwflag=throwflag@entry=0) at Python/ceval.c:2679 #106 0x00007ffff751ed80 in PyEval_EvalCodeEx (co=, globals=, locals=locals@entry=0x0, args=args@entry=0x7ffff7f9a068, argcount=0, kws=kws@entry=0x0, kwcount=kwcount@entry=0, defs=defs@entry=0x0, defcount=defcount@entry=0, closure=0x0) at Python/ceval.c:3265 #107 0x00007ffff74a0c06 in function_call (func=0x7ffff7e77e60, arg=0x7ffff7f9a050, kw=0x0) at Objects/funcobject.c:526 #108 0x00007ffff747563e in PyObject_Call (func=func@entry=0x7ffff7e77e60, arg=arg@entry=0x7ffff7f9a050, kw=) at Objects/abstract.c:2529 ---Type to continue, or q to quit--- #109 0x00007ffff7517e77 in PyEval_CallObjectWithKeywords (func=0x7ffff7e77e60, arg=0x7ffff7f9a050, kw=) at Python/ceval.c:3902 #110 0x00007ffff7bd3529 in execute_python_entrypoint () from /opt/calibre/lib/libcalibre-launcher.so #111 0x0000000000400627 in main () (gdb) (gdb) quit