Application: gwenview (2.4.3)
KDE Platform Version: 4.4.5 (KDE 4.4.5)
Qt Version: 4.6.3
Operating System: Linux 2.6.32-5-amd64 x86_64
Distribution: Debian GNU/Linux testing (squeeze)

-- Information about the crash:
When navigating to a subfolder, the application stats creating thumbnails for browsing and then (always) exits when it hits one of two particular image files, which are down-sampled versions of the original which opens in GwenView fine.  These two 'problem' files can be opened with Okular and GIMP, but not with KoulorPaint or ImageJ.  Imagej reports a "TiffDecoder" error of "Unsupported SamplesPerPixel: 2" for both files.  IIRC all image processing on these two files was performed with GIMP2.2 and 2.4 and ImageJ (~2001-2007) for resizing and dynamic range compression (reducing levels).  

When the files are moved to another directory the behavior follows them.  Also, when copied into a directory which is currently being viewed in Gwenview, the application will crash.

The crash can be reproduced every time.

 -- Backtrace:
Application: Gwenview (gwenview), signal: Aborted
pthread_cond_wait@@GLIBC_2.3.2 ()
    at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
	in ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
The current source language is "auto; currently asm".
[Current thread is 1 (Thread 0x7f4a45d7b760 (LWP 16278))]

Thread 4 (Thread 0x7f4a37bf9710 (LWP 16279)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4a44d44e6b in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/libQtCore.so.4
#2  0x00007f4a456ce3fc in ?? () from /usr/lib/libgwenviewlib.so.4
#3  0x00007f4a44d43e15 in ?? () from /usr/lib/libQtCore.so.4
#4  0x00007f4a3ffc68ba in start_thread (arg=<value optimized out>) at pthread_create.c:300
#5  0x00007f4a42aa602d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#6  0x0000000000000000 in ?? ()

Thread 3 (Thread 0x7f4a2f7d4710 (LWP 16284)):
#0  __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/x86_64/lowlevellock.S:97
#1  0x00007f4a42a4f458 in _L_lock_9590 () from /lib/libc.so.6
#2  0x00007f4a42a4d841 in *__GI___libc_free (mem=0x7f4a42d33e40) at malloc.c:3737
#3  0x00007f4a3f711fea in ?? () from /lib/libglib-2.0.so.0
#4  0x00007f4a44e5d1b3 in QEventDispatcherGlib::~QEventDispatcherGlib() () from /usr/lib/libQtCore.so.4
#5  0x00007f4a44d43a04 in ?? () from /usr/lib/libQtCore.so.4
#6  0x00007f4a44d43e1d in ?? () from /usr/lib/libQtCore.so.4
#7  0x00007f4a3ffc68ba in start_thread (arg=<value optimized out>) at pthread_create.c:300
#8  0x00007f4a42aa602d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#9  0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4a2ebd1710 (LWP 16285)):
[KCrash Handler]
#5  0x00007f4a42a09165 in *__GI_raise (sig=<value optimized out>) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#6  0x00007f4a42a0bf70 in *__GI_abort () at abort.c:92
#7  0x00007f4a42a3f27b in __libc_message (do_abort=<value optimized out>, fmt=<value optimized out>) at ../sysdeps/unix/sysv/linux/libc_fatal.c:189
#8  0x00007f4a42a48ad6 in malloc_printerr (action=3, str=0x7f4a42affac8 "double free or corruption (!prev)", ptr=<value optimized out>) at malloc.c:6267
#9  0x00007f4a42a4d84c in *__GI___libc_free (mem=<value optimized out>) at malloc.c:3739
#10 0x00007f4a4330c875 in QImageData::~QImageData() () from /usr/lib/libQtGui.so.4
#11 0x00007f4a4330d1c3 in QImage::~QImage() () from /usr/lib/libQtGui.so.4
#12 0x00007f4a456b4325 in ?? () from /usr/lib/libgwenviewlib.so.4
#13 0x00007f4a456b4650 in ?? () from /usr/lib/libgwenviewlib.so.4
#14 0x00007f4a44d43e15 in ?? () from /usr/lib/libQtCore.so.4
#15 0x00007f4a3ffc68ba in start_thread (arg=<value optimized out>) at pthread_create.c:300
#16 0x00007f4a42aa602d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#17 0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f4a45d7b760 (LWP 16278)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x00007f4a44d43563 in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007f4a44d3ee05 in QMutex::lock() () from /usr/lib/libQtCore.so.4
#3  0x00007f4a44d43ee9 in QThread::wait(unsigned long) () from /usr/lib/libQtCore.so.4
#4  0x00007f4a44d3a14a in ?? () from /usr/lib/libQtCore.so.4
#5  0x00007f4a44d3a348 in QThreadPool::~QThreadPool() () from /usr/lib/libQtCore.so.4
#6  0x00007f4a44d3a9d5 in ?? () from /usr/lib/libQtCore.so.4
#7  0x00007f4a42a0d5e2 in __run_exit_handlers (status=1, listp=0x7f4a42d324a8, run_list_atexit=true) at exit.c:78
#8  0x00007f4a42a0d635 in *__GI_exit (status=9611148) at exit.c:100
#9  0x00007f4a432bae68 in ?? () from /usr/lib/libQtGui.so.4
#10 0x00007f4a443fb258 in KApplication::xioErrhandler(_XDisplay*) () from /usr/lib/libkdeui.so.5
#11 0x00007f4a40ab1e3e in _XIOError () from /usr/lib/libX11.so.6
#12 0x00007f4a40ab925f in ?? () from /usr/lib/libX11.so.6
#13 0x00007f4a40ab9b97 in _XEventsQueued () from /usr/lib/libX11.so.6
#14 0x00007f4a40aa2463 in XEventsQueued () from /usr/lib/libX11.so.6
#15 0x00007f4a432f43b7 in ?? () from /usr/lib/libQtGui.so.4
#16 0x00007f4a3f715cd1 in g_main_context_prepare () from /lib/libglib-2.0.so.0
#17 0x00007f4a3f716138 in ?? () from /lib/libglib-2.0.so.0
#18 0x00007f4a3f71671c in g_main_context_iteration () from /lib/libglib-2.0.so.0
#19 0x00007f4a44e5c726 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#20 0x00007f4a432f418e in ?? () from /usr/lib/libQtGui.so.4
#21 0x00007f4a44e319e2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#22 0x00007f4a44e31dbc in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/libQtCore.so.4
#23 0x00007f4a44e36a4b in QCoreApplication::exec() () from /usr/lib/libQtCore.so.4
#24 0x000000000044400e in _start ()

Reported using DrKonqi