[Bug 303186] New: crash on Shortcut edit for tagging

[Peter Gervai-2]

https://bugs.kde.org/show_bug.cgi?id=303186

            Bug ID: 303186
          Severity: crash
           Version: 2.6.0
          Priority: NOR
          Assignee: [hidden email]
           Summary: crash on Shortcut edit for tagging
    Classification: Unclassified
                OS: Linux
          Reporter: [hidden email]
          Hardware: Debian unstable
            Status: UNCONFIRMED
         Component: general
           Product: digikam

Application: digikam (2.6.0)
KDE Platform Version: 4.8.4 (4.8.4)
Qt Version: 4.8.2
Operating System: Linux 3.2.0-2-686-pae i686
Distribution: Debian GNU/Linux unstable (sid)

-- Information about the crash:
- What I was doing when the application crashed:
Settings >> Configure shortcuts >> Select "Assign Tag "xxx"" >> Click on
"Custom" radio button >> crash

- Custom settings of the application:
CTRL-B is assigned to a tag.

I have noticed something which weren't there before upgrade: now tagging images
using the shortcut generates a few working threads:
- assignment of a tag - working normally
- flushing metadata - it's okay as well
- removal of a tag - never starts, never finishes, and I cannot see what it
wants to remove. these are accumulating, until I exit.

I think using the shortcut for removal is the same in reverse: there is an
assignment of a tag thread starts, lingering on forever.

This is Debian/sid, using latest libs which the package depends on, but not all
of KDE is refreshed. (It's a multi-gigabyte refresh,
still pending...)

The crash can be reproduced every time.

-- Backtrace:
Application: digiKam (digikam), signal: Segmentation fault
Using host libthread_db library
"/lib/i386-linux-gnu/i686/cmov/libthread_db.so.1".
[Current thread is 1 (Thread 0xae8368c0 (LWP 29066))]

Thread 4 (Thread 0xac788b70 (LWP 29075)):
#0  0xb7780424 in __kernel_vsyscall ()
#1  0xb348f20a in __pthread_cond_wait (cond=0x895ea80, mutex=0x895ea68) at
pthread_cond_wait.c:153
#2  0xb472f36d in __pthread_cond_wait (cond=0x895ea80, mutex=0x895ea68) at
forward.c:139
#3  0xb49ce460 in wait (time=4294967295, this=0x895ea68) at
thread/qwaitcondition_unix.cpp:86
#4  QWaitCondition::wait (this=0x895e9d4, mutex=0x895e9d0, time=4294967295) at
thread/qwaitcondition_unix.cpp:158
#5  0x081fc1a7 in Digikam::ScanController::run() ()
#6  0xb49cdef0 in QThreadPrivate::start (arg=0x8948710) at
thread/qthread_unix.cpp:307
#7  0xb348ac39 in start_thread (arg=0xac788b70) at pthread_create.c:304
#8  0xb472227e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 3 (Thread 0xabf87b70 (LWP 29076)):
#0  0xb7780424 in __kernel_vsyscall ()
#1  0xb4714886 in *__GI___poll (fds=0xb47aaff4, nfds=1, timeout=-1) at
../sysdeps/unix/sysv/linux/poll.c:87
#2  0xb308e6ab in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
#3  0xb3080c3e in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#4  0xb3080d91 in g_main_context_iteration () from
/lib/i386-linux-gnu/libglib-2.0.so.0
#5  0xb4b1191f in QEventDispatcherGlib::processEvents (this=0xab600468,
flags=...) at kernel/qeventdispatcher_glib.cpp:426
#6  0xb4ade0dc in QEventLoop::processEvents (this=this@entry=0xabf870f8,
flags=...) at kernel/qeventloop.cpp:149
#7  0xb4ade3d1 in QEventLoop::exec (this=0xabf870f8, flags=...) at
kernel/qeventloop.cpp:204
#8  0xb49cab2c in QThread::exec (this=0x8961a48) at thread/qthread.cpp:501
#9  0xb4abc7dd in QInotifyFileSystemWatcherEngine::run (this=0x8961a48) at
io/qfilesystemwatcher_inotify.cpp:248
#10 0xb49cdef0 in QThreadPrivate::start (arg=0x8961a48) at
thread/qthread_unix.cpp:307
#11 0xb348ac39 in start_thread (arg=0xabf87b70) at pthread_create.c:304
#12 0xb472227e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 2 (Thread 0xab5ffb70 (LWP 29078)):
#0  0xb7780424 in __kernel_vsyscall ()
#1  0xb348f20a in __pthread_cond_wait (cond=0x8b3b7a8, mutex=0x8b3b790) at
pthread_cond_wait.c:153
#2  0xb472f36d in __pthread_cond_wait (cond=0x8b3b7a8, mutex=0x8b3b790) at
forward.c:139
#3  0xb49ce460 in wait (time=4294967295, this=0x8b3b790) at
thread/qwaitcondition_unix.cpp:86
#4  QWaitCondition::wait (this=0x89e6a58, mutex=0x89e6a54, time=4294967295) at
thread/qwaitcondition_unix.cpp:158
#5  0xb6a1c6ce in Digikam::ParkingThread::run() () from
/usr/lib/libdigikamcore.so.2
#6  0xb49cdef0 in QThreadPrivate::start (arg=0x89e6a48) at
thread/qthread_unix.cpp:307
#7  0xb348ac39 in start_thread (arg=0xab5ffb70) at pthread_create.c:304
#8  0xb472227e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xae8368c0 (LWP 29066)):
[KCrash Handler]
#7  0xb509db86 in QKeySequence::isEmpty (this=0xaabe588) at
kernel/qkeysequence.cpp:1064
#8  0xb506f462 in QAction::shortcuts (this=0xaa88ad8) at kernel/qaction.cpp:508
#9  0xb5b1899f in KAction::shortcut (this=0xaa88ad8, type=...) at
../../kdeui/actions/kaction.cpp:193
#10 0xbf929a2c in ?? ()
#11 0xb5e5dff4 in ?? () from /usr/lib/libkdeui.so.5
Backtrace stopped: previous frame inner to this frame (corrupt stack?)

Reported using DrKonqi

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[Gilles Caulier-4]

https://bugs.kde.org/show_bug.cgi?id=303186

Gilles Caulier <[hidden email]> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |[hidden email]
          Component|general                     |shortcuts
            Version|2.6.0                       |unspecified
           Assignee|[hidden email]       |[hidden email]
            Product|digikam                     |kdelibs

--- Comment #1 from Gilles Caulier <[hidden email]> ---
Sound like it crash in KDELibs, not digiKam...

Gilles Caulier

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