Bug#337789: libqt3-mt: Crash in libc6 free() caused by a vtable function of QGList that kills KDevelop and others
Package: libqt3-mt
Version: 3:3.3.5-1
Severity: important
Several operations in KDevelop induces crashes with similar tracebacks.
Theses bugs are reported to bugs.kde.org, but they may have a common
root in the libqt3-mt package used in Debian unstable.
Common part (last lines) of these tracebacks:
...
#47 0xb688895c in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#48 0xb68fdea2 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#49 0xb68fddcb in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#50 0xb68e4305 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#51 0x0804e3c8 in ?? ()
#52 0xbfa9b424 in ?? ()
#53 0x08051c42 in vtable for QGList ()
#54 0xbfa9b5e8 in ?? ()
#55 0x0804e37c in ?? ()
#56 0xb61ca134 in free () from /lib/tls/libc.so.6
#57 0xb6177ec0 in __libc_start_main () from /lib/tls/libc.so.6
#58 0x0804d991 in ?? ()
Something in QGList crashes KDevelop and possibly other apps in some cases.
You could reproduce the bug under Debian unstable:
Open KDevelop and create a new project. Go to the Project / Project options
dialog. Select the "Extension modules" pane and deselect visualboyadvance,
then press Ok to save changes. KDevelop crashes for me at this point with
SIGSEGV. It does not crash if you press Cancel. For full traceback see:
http://bugs.kde.org/show_bug.cgi?id=115757
Please drop me a mail it the bug cannot be reproduced and this issue is
related to my system only. I use a custom SMP kernel with Intel P4 CPU
with HyperThreading support. I can send .config, do tests of everything
you need to track down this thing.
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'stable')
Architecture: i386 (i686)
Shell: /bin/sh linked to /bin/bash
Kernel: Linux 2.6.13.4-sirius-20051105-1516
Locale: LANG=hu_HU, LC_CTYPE=hu_HU (charmap=ISO-8859-2)
Versions of packages libqt3-mt depends on:
ii fontconfig 2.3.2-1.1 generic font configuration library
ii libaudio2 1.7-3 The Network Audio System (NAS). (s
ii libc6 2.3.5-7 GNU C Library: Shared libraries an
ii libfontconfig1 2.3.2-1.1 generic font configuration library
ii libfreetype6 2.1.10-1 FreeType 2 font engine, shared lib
ii libgcc1 1:4.0.2-3 GCC support library
ii libice6 6.8.2.dfsg.1-10 Inter-Client Exchange library
ii libjpeg62 6b-10 The Independent JPEG Group's JPEG
ii libmng1 1.0.8-1 Multiple-image Network Graphics li
ii libpng12-0 1.2.8rel-5 PNG library - runtime
ii libsm6 6.8.2.dfsg.1-10 X Window System Session Management
ii libstdc++6 4.0.2-3 The GNU Standard C++ Library v3
ii libx11-6 6.8.2.dfsg.1-10 X Window System protocol client li
ii libxcursor1 1.1.3-1 X cursor management library
ii libxext6 6.8.2.dfsg.1-10 X Window System miscellaneous exte
ii libxft2 2.1.7-1 FreeType-based font drawing librar
ii libxi6 6.8.2.dfsg.1-10 X Window System Input extension li
ii libxinerama1 6.8.2.dfsg.1-10 X Window System multi-head display
ii libxrandr2 6.8.2.dfsg.1-10 X Window System Resize, Rotate and
ii libxrender1 1:0.9.0-2 X Rendering Extension client libra
ii libxt6 6.8.2.dfsg.1-10 X Toolkit Intrinsics
ii xlibs 6.8.2.dfsg.1-10 X Window System client libraries m
ii zlib1g 1:1.2.3-6 compression library - runtime
libqt3-mt recommends no packages.
-- no debconf information
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