Version: 0.9.4-beta5 (using 3.5.9, Debian Package 4:3.5.9.dfsg.1-4 (lenny/sid)) Compiler: Target: powerpc-linux-gnu OS: Linux (ppc) release 2.6.18-5-powerpc This is a forwarded report from: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=437021 I confirm I am able to reproduce the crash with 0.9.4-beta5. I also noticed there are a couple of light table crash reports, that were never resolved. So I suspect there maybe a real problem here. I can provide the beta5 backtrace if that is of more help: From: David Bremner <bremner@unb.ca> To: Debian Bug Tracking System <submit@bugs.debian.org> Subject: digikam crashes when using light table Date: Fri, 10 Aug 2007 08:15:08 +0200 Package: digikam Version: 2:0.9.2-4 Severity: normal It seems with the current unstable version of digikam, digikam crashes consistently for me if I add 3 pictures to the light table, select one to be the left, and press page down once The backtrace is not very informative; I thought I had the right packages (digikam-dbg) installed, but perhaps not. Using host libthread_db library "/lib/libthread_db.so.1". [Thread debugging using libthread_db enabled] [New Thread -1247365440 (LWP 31937)] [New Thread -1340671088 (LWP 31969)] [New Thread -1332282480 (LWP 31968)] [New Thread -1302103152 (LWP 31967)] [New Thread -1293714544 (LWP 31966)] [New Thread -1249895536 (LWP 31953)] [New Thread -1258284144 (LWP 31952)] 0xb5b3af7c in nanosleep () from /lib/libc.so.6 #0 0xb5b3af7c in nanosleep () from /lib/libc.so.6 #1 0xb5b3ad9a in sleep () from /lib/libc.so.6 #2 0xb6a2b107 in KCrash::startDrKonqi (argv=0xbf983f40, argc=17) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kcrash.cpp:312 #3 0xb6a41107 in KCrash::defaultCrashHandler (sig=11) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kcrash.cpp:229 #4 0xffffe420 in ?? () #5 0x0000000b in ?? () #6 0x00000033 in ?? () #7 0xc0100000 in ?? () #8 0xc010007b in ?? () #9 0xffff007b in ?? () #10 0xbf984364 in ?? () #11 0xbf984360 in ?? () #12 0xbf9842f8 in ?? () #13 0xbf9842bc in ?? () #14 0xb68865ac in ?? () from /usr/lib/libqt-mt.so.3 #15 0x0886f5d0 in ?? () #16 0x00000004 in ?? () #17 0x00000000 in ?? () -- System Information: Debian Release: lenny/sid APT prefers unstable APT policy: (500, 'unstable'), (500, 'stable') Architecture: i386 (i686) Kernel: Linux 2.6.22 (PREEMPT) Locale: LANG=en_CA, LC_CTYPE=en_CA (charmap=ISO-8859-1) Shell: /bin/sh linked to /bin/bash Versions of packages digikam depends on: ii kdebase-kio-plugins 4:3.5.7-2+b1 core I/O slaves for KDE ii kdelibs4c2a 4:3.5.7.dfsg.1-3 core libraries and binaries for al ii libacl1 2.2.42-1 Access control list shared library ii libart-2.0-2 2.3.19-3 Library of functions for 2D graphi ii libattr1 1:2.4.32-1.2 Extended attribute shared library ii libaudio2 1.9-2+b1 The Network Audio System (NAS). (s ii libc6 2.6.1-1 GNU C Library: Shared libraries ii libexif12 0.6.16-2 library to parse EXIF files ii libexiv2-0 0.15-1 EXIF/IPTC metadata manipulation li ii libfontconfig1 2.4.2-1.2 generic font configuration library ii libfreetype6 2.3.5-1+b1 FreeType 2 font engine, shared lib ii libgamin0 [libfam0] 0.1.8-2 Client library for the gamin file ii libgcc1 1:4.2.1-2 GCC support library ii libgphoto2-2 2.3.1-8 gphoto2 digital camera library ii libgphoto2-2-dev 2.3.1-8 gphoto2 digital camera library (de ii libgphoto2-port0 2.3.1-8 gphoto2 digital camera port librar ii libice6 2:1.0.3-3 X11 Inter-Client Exchange library ii libidn11 1.0-0 GNU libidn library, implementation ii libjasper1 1.900.1-3 The JasPer JPEG-2000 runtime libra ii libjpeg62 6b-13 The Independent JPEG Group's JPEG ii libkdcraw1 0.1.1-2 Raw picture decoding C++ library ( ii libkexiv2-1 0.1.5-1+b1 Qt like interface for the libexiv2 ii libkipi0 0.1.5-2 library for apps that want to use ii liblcms1 1.16-6 Color management library ii libltdl3 1.5.24-1 A system independent dlopen wrappe ii libpcre3 7.2-1 Perl 5 Compatible Regular Expressi ii libpng12-0 1.2.15~beta5-2 PNG library - runtime ii libqt3-mt 3:3.3.7-6 Qt GUI Library (Threaded runtime v ii libsm6 2:1.0.3-1+b1 X11 Session Management library ii libsqlite3-0 3.4.1-1 SQLite 3 shared library ii libstdc++6 4.2.1-2 The GNU Standard C++ Library v3 ii libtiff4 3.8.2-7 Tag Image File Format (TIFF) libra ii libx11-6 2:1.0.3-7 X11 client-side library ii libxcursor1 1:1.1.8-2 X cursor management library ii libxext6 1:1.0.3-2 X11 miscellaneous extension librar ii libxft2 2.1.12-2 FreeType-based font drawing librar ii libxi6 2:1.1.2-1 X11 Input extension library ii libxinerama1 1:1.0.2-1 X11 Xinerama extension library ii libxrandr2 2:1.2.1-1 X11 RandR extension library ii libxrender1 1:0.9.2-1 X Rendering Extension client libra ii libxt6 1:1.0.5-3 X11 toolkit intrinsics library ii zlib1g 1:1.2.3.3.dfsg-5 compression library - runtime Versions of packages digikam recommends: ii kdeprint 4:3.5.7-2+b1 print system for KDE ii kipi-plugins 0.1.4-1+b1 image manipulation/handling plugin ii konqueror 4:3.5.7-2+b1 KDE's advanced file manager, web b -- no debconf information Message #10 received at 437021@bugs.debian.org (full text, mbox): From: bremner@unb.ca To: 437021@bugs.debian.org Subject: better backtrace Date: Fri, 10 Aug 2007 20:08:59 +0200 Doh! I guess I should have tried this earlier. Here is a backtrace from within gdb (as opposed to from the KDE crash handler widget) #0 0xb7c6cf59 in QString::length (this=0xbff96c20) at /usr/share/qt3/include/qstring.h:879 #1 0x0804b368 in operator+ (s1=@0xbff96c24, s2=@0xb27032d4) at /usr/share/qt3/include/qstring.h:1038 #2 0xb7c24624 in Digikam::ImageInfo::filePath (this=0xb27032c8) at /home/mark/src/debian/kde-extras/build-area/digikam-0.9.2/./digikam/digik am/imageinfo.cpp:188 #3 0xb7e55946 in Digikam::LightTablePreview::setImageInfo (this=0x881ad30, info=0xb27032c8, previous=0x0, next=0x0) at /home/mark/src/debian/kde-extras/build-area/digikam-0.9.2/./digikam/utili ties/lighttable/lighttablepreview.cpp:330 #4 0xb7e55b61 in Digikam::LightTableView::setLeftImageInfo (this=0x881a720, info=0xb27032c8) at /home/mark/src/debian/kde-extras/build-area/digikam-0.9.2/./digikam/utili ties/lighttable/lighttableview.cpp:364 #5 0xb7e55ba5 in Digikam::LightTableWindow::slotSetItemOnLeftPanel ( this=0x8749558, info=0xb27032c8) at /home/mark/src/debian/kde-extras/build-area/digikam-0.9.2/./digikam/utili ties/lighttable/lighttablewindow.cpp:764 #6 0xb7e5a91c in Digikam::LightTableWindow::slotSetItemLeft (this=0x8749558) at /home/mark/src/debian/kde-extras/build-area/digikam-0.9.2/./digikam/utili ties/lighttable/lighttablewindow.cpp:750 #7 0xb7e61fe7 in Digikam::LightTableWindow::qt_invoke (this=0x8749558, _id=78, _o=0xbff96dbc) at ./lighttablewindow.moc:233 #8 0xb62c9d23 in QObject::activate_signal (this=0x876d918, clist=0x881fb58, o=0xbff96dbc) at kernel/qobject.cpp:2356 #9 0xb62ca7c8 in QObject::activate_signal (this=0x876d918, signal=2) at kernel/qobject.cpp:2325 #10 0xb6c11709 in KAction::activated (this=0x876d918) at ./kaction.moc:176 #11 0xb6c46ab2 in KAction::slotActivated (this=0x876d918) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdeui/kaction.cpp:1102 #12 0xb6c46a4c in KAction::slotButtonClicked (this=0x876d918, state=LeftButton) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdeui/kaction.cpp:1147 #13 0xb6d13016 in KAction::qt_invoke (this=0x876d918, _id=17, _o=0xbff96ec0) at ./kaction.moc:220 #14 0xb62c9d23 in QObject::activate_signal (this=0x8906f00, clist=0x8901208, o=0xbff96ec0) at kernel/qobject.cpp:2356 #15 0xb6c48c60 in KToolBarButton::buttonClicked (this=0x8906f00, t0=-25, t1=LeftButton) at ./ktoolbarbutton.moc:154 #16 0xb6c48f66 in KToolBarButton::mouseReleaseEvent (this=0x8906f00, e=0xbff97384) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdeui/ktoolbarbutton.cpp:479 #17 0xb6300cb2 in QWidget::event (this=0x8906f00, e=0xbff97384) at kernel/qwidget.cpp:4702 #18 0xb6cc35d1 in KToolBarButton::event (this=0x4, e=0xb27043b8) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdeui/ktoolbarbutton.cpp:651 #19 0xb62614e0 in QApplication::internalNotify (this=0xbff9795c, receiver=0x8906f00, e=0xbff97384) at kernel/qapplication.cpp:2635 #20 0xb62636a1 in QApplication::notify (this=0xbff9795c, receiver=0x8906f00, e=0xbff97384) at kernel/qapplication.cpp:2421 #21 0xb6a07122 in KApplication::notify (this=0xbff9795c, receiver=0x8906f00, event=0xbff97384) at /tmp/buildd/kdelibs-3.5.7.dfsg.1/./kdecore/kapplication.cpp:550 #22 0xb61f4609 in QApplication::sendSpontaneousEvent (receiver=0x8906f00, event=0xbff97384) at kernel/qapplication.h:523 #23 0xb61f3292 in QETWidget::translateMouseEvent (this=0x8906f00, event=0xbff977b8) at kernel/qapplication_x11.cpp:4301 #24 0xb61f16da in QApplication::x11ProcessEvent (this=0xbff9795c, event=0xbff977b8) at kernel/qapplication_x11.cpp:3478 #25 0xb6207fb8 in QEventLoop::processEvents (this=0x8081c68, flags=4) at kernel/qeventloop_x11.cpp:192 #26 0xb627bbe6 in QEventLoop::enterLoop (this=0x8081c68) at kernel/qeventloop.cpp:198 #27 0xb627b9f6 in QEventLoop::exec (this=0x8081c68) at kernel/qeventloop.cpp:145 #28 0xb6263089 in QApplication::exec (this=0xbff9795c) at kernel/qapplication.cpp:2758 #29 0x0804b148 in main (argc=1, argv=0xbff97be4) at /home/mark/src/debian/kde-extras/build-area/digikam-0.9.2/./digikam/digikam/main.cpp:322 (gdb)
Arnd, What do you think about ? Gilles
I can't confirm this... light table works just fine here (I'm also using beta5).
Thanks Andy. Same for me. i cannot reproduce the crash here... Gilles
I can't reproduce that problem either, and the above backtrace does not really help, right? Mark, you wrote: > I also noticed there are a couple of light table crash reports, > that were never resolved. I don't see any open crash reports for the light-table, did I miss one? (It might be that a couple of crash reports had to be closed, because those crashes were not reproducible and no back-trace with further information was available). Of course it might very well be possible that in certain situtations one can trigger a crash, so a full back trace in such a case would be very helpful! Best, Arnd
Arnd, > I don't see any open crash reports for the light-table, did I miss one? > (It might be that a couple of crash reports had to be closed, because > those crashes were not reproducible and no back-trace with further > information was available). Sorry, yes I was referring to those that were closed without a back-trace. I'll try and generate the backtrack from -beta5 to be of more use. Mark
Created attachment 25002 [details] back trace from light table crash.
Mark, ==> #5 0x0fd4633c in Digikam::ThumbBarItem::next (this=0x0) "This" is null. this is why LT crash. Can you give us exactly all steps done on gui to reproduce it ? Gilles Caulier
On Fri, 30 May 2008, Gilles Caulier wrote: > ==> #5 0x0fd4633c in Digikam::ThumbBarItem::next (this=0x0) > > "This" is null. this is why LT crash. > > Can you give us exactly all steps done on gui to reproduce it ? Gilles, I can reproduce using the following steps. 1. Load three images onto the light table 2. Drag the right hand image onto the left and right panes (or Ctrl+L, Ctrl+R) 3. Right click the right hand image and select "Remove Item" (or Ctrl+K) 4. Digikam crash (this=0x0) Attached screen shot just prior to crash. Mark Created an attachment (id=25005) lighttable-crash.png
Mark, Arnd, Andy, Yes, now i can reproduce the crash... Who want to check source code (:=))) ? Gilles
Ok, now I can confirm it, too. Maybe I'll take a look at the code later on, right now I'm too busy. It seems to crash only if the last image is displayed in the left and right window, otherwise the image will be just removed from the list as expected.
Created attachment 25010 [details] quick fix
Created attachment 25011 [details] new patch I think it is more logical to display the last image in the thumbar than the first one
Created attachment 25012 [details] third patch When just two images were in the thumbbar and the last one was removed, no image was displayed in the panel. Now the only remaining image is displayed in the left panel.
SVN commit 815897 by aclemens: digiKam from KDE3 branch: fixed null-pointer issue when removing the last item in lighttable thumbbar CCBUGS: 162814 TODO: KDE4PORT M +2 -1 NEWS M +16 -5 utilities/lighttable/lighttablewindow.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=815897
*** Bug has been marked as fixed ***.
SVN commit 816103 by cgilles: backport commit #815897 from KDE3 branch CCBUGS: 162814 M +18 -8 lighttablewindow.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=816103
SVN commit 827415 by aclemens: If only one image is left in thumbbar and it is removed from the list, lighttable crashes. Again this is the same nullpointer issue as mentioned in this bugreport and has been fixed now. CCBUGS:162814 M +0 -6 lighttablewindow.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=827415
SVN commit 827429 by aclemens: backport commit #827415 from KDE3 branch CCBUGS: 162814 M +0 -6 lighttablewindow.cpp WebSVN link: http://websvn.kde.org/?view=rev&revision=827429