Re: how to debug segment fault problem in kdevelop?
On Sun, Apr 26, 2009 at 2:40 PM, Boyd Stephen Smith Jr. b...@iguanasuicide.net wrote: In 6a8fced30904251059g77a533c2yf94d6b66d6a63...@mail.gmail.com, 明覺 wrote: I download the k3dsurf project(a kdevelop project) and compiled it in kdevelop successfully, but when i run it, it says segment fault, how could I debug it? thanks. here is the gdb info: This list isn't quite correct for this question. You may want to use a mailing list, newsgroup, or other forum specifically for k3dsurf, or possibly kde-devel. Tracking down a SIGSEGV is often the role of a developer[1], and this list is not developer-oriented. That said, SIGSEGV is generally sent to the process by the kernel when it attempts to access a page of memory that it doesn't have a mapping for -- usually caused by dereferrencing a NULL or invalid pointer, but also common if the program is not linked correctly. thank you for the information, it seems to be caused by the mesa libs which is the implementation of opengl, for after I replace the libGL***.so by installing nvidia video card driver from Nividia company(not free software), the applications can run normally. thanks. - This GDB was configured as x86_64-linux-gnu. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... (gdb) run Starting program: /root/workspace/C++/k3dsurf/bin/k3dsurf [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x75d74a60 in ?? () from /lib/libc.so.6 (gdb) bt #0 0x75d74a60 in ?? () from /lib/libc.so.6 #1 0x76ec4651 in glXWaitX () from /usr/lib/libGL.so.1 #2 0x7790c2a1 in QGLWidget::resizeEvent(QResizeEvent*) () from /usr/lib/libqt-mt.so.3 #3 0x7772f07b in QWidget::event(QEvent*) () from /usr/lib/libqt-mt.so.3 #4 0x776a8953 in QApplication::internalNotify(QObject*, QEvent*) () from /usr/lib/libqt-mt.so.3 #5 0x776a962e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libqt-mt.so.3 #6 0x776aa03a in QApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libqt-mt.so.3 #7 0x7773018d in QWidget::show() () from /usr/lib/libqt-mt.so.3 #8 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #9 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 #10 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #11 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 #12 0x778193c9 in QWidgetStack::show() () from /usr/lib/libqt-mt.so.3 #13 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #14 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 -- If this backtrace is correct and complete it looks like a bug in Qt, but it could also be caused by misuse of Qt by the application. If you have no other ideas, you should try reducing the application to a minimal test case. As part of that process you'll probably find a misuse of the library, but you may complete that process and be able to file a high-quality bug report against Qt. -- Boyd Stephen Smith Jr. ,= ,-_-. =. b...@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/\_/ [1] You'll need to understand the programming language the program was written in at least, and maybe the implementation language of associated libraries as well. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
Re: how to debug segment fault problem in kdevelop?
In 6a8fced30904251059g77a533c2yf94d6b66d6a63...@mail.gmail.com, 明覺 wrote: I download the k3dsurf project(a kdevelop project) and compiled it in kdevelop successfully, but when i run it, it says segment fault, how could I debug it? thanks. here is the gdb info: This list isn't quite correct for this question. You may want to use a mailing list, newsgroup, or other forum specifically for k3dsurf, or possibly kde-devel. Tracking down a SIGSEGV is often the role of a developer[1], and this list is not developer-oriented. That said, SIGSEGV is generally sent to the process by the kernel when it attempts to access a page of memory that it doesn't have a mapping for -- usually caused by dereferrencing a NULL or invalid pointer, but also common if the program is not linked correctly. - This GDB was configured as x86_64-linux-gnu. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... (gdb) run Starting program: /root/workspace/C++/k3dsurf/bin/k3dsurf [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x75d74a60 in ?? () from /lib/libc.so.6 (gdb) bt #0 0x75d74a60 in ?? () from /lib/libc.so.6 #1 0x76ec4651 in glXWaitX () from /usr/lib/libGL.so.1 #2 0x7790c2a1 in QGLWidget::resizeEvent(QResizeEvent*) () from /usr/lib/libqt-mt.so.3 #3 0x7772f07b in QWidget::event(QEvent*) () from /usr/lib/libqt-mt.so.3 #4 0x776a8953 in QApplication::internalNotify(QObject*, QEvent*) () from /usr/lib/libqt-mt.so.3 #5 0x776a962e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libqt-mt.so.3 #6 0x776aa03a in QApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libqt-mt.so.3 #7 0x7773018d in QWidget::show() () from /usr/lib/libqt-mt.so.3 #8 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #9 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 #10 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #11 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 #12 0x778193c9 in QWidgetStack::show() () from /usr/lib/libqt-mt.so.3 #13 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #14 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 -- If this backtrace is correct and complete it looks like a bug in Qt, but it could also be caused by misuse of Qt by the application. If you have no other ideas, you should try reducing the application to a minimal test case. As part of that process you'll probably find a misuse of the library, but you may complete that process and be able to file a high-quality bug report against Qt. -- Boyd Stephen Smith Jr. ,= ,-_-. =. b...@iguanasuicide.net ((_/)o o(\_)) ICQ: 514984 YM/AIM: DaTwinkDaddy `-'(. .)`-' http://iguanasuicide.net/\_/ [1] You'll need to understand the programming language the program was written in at least, and maybe the implementation language of associated libraries as well. signature.asc Description: This is a digitally signed message part.
how to debug segment fault problem in kdevelop?
I download the k3dsurf project(a kdevelop project) and compiled it in kdevelop successfully, but when i run it, it says segment fault, how could I debug it? thanks. here is the gdb info: - This GDB was configured as x86_64-linux-gnu. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/... (gdb) run Starting program: /root/workspace/C++/k3dsurf/bin/k3dsurf [Thread debugging using libthread_db enabled] Program received signal SIGSEGV, Segmentation fault. 0x75d74a60 in ?? () from /lib/libc.so.6 (gdb) bt #0 0x75d74a60 in ?? () from /lib/libc.so.6 #1 0x76ec4651 in glXWaitX () from /usr/lib/libGL.so.1 #2 0x7790c2a1 in QGLWidget::resizeEvent(QResizeEvent*) () from /usr/lib/libqt-mt.so.3 #3 0x7772f07b in QWidget::event(QEvent*) () from /usr/lib/libqt-mt.so.3 #4 0x776a8953 in QApplication::internalNotify(QObject*, QEvent*) () from /usr/lib/libqt-mt.so.3 #5 0x776a962e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libqt-mt.so.3 #6 0x776aa03a in QApplication::sendPostedEvents(QObject*, int) () from /usr/lib/libqt-mt.so.3 #7 0x7773018d in QWidget::show() () from /usr/lib/libqt-mt.so.3 #8 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #9 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 #10 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #11 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 #12 0x778193c9 in QWidgetStack::show() () from /usr/lib/libqt-mt.so.3 #13 0x7772e5d1 in QWidget::showChildren(bool) () from /usr/lib/libqt-mt.so.3 #14 0x77730260 in QWidget::show() () from /usr/lib/libqt-mt.so.3 -- (the project source code is downloaded from http://www.kde-apps.org/content/show.php?content=25049) -- My platform is debian-sid-amd64 gnome kdevelop. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org
