[Pkg-virtualbox-devel] Bug#675373: virtualbox: segfault in libQtCore.so.4.8.1

[manuk7]

I'm suffering of the same problem, which seems to be double :

* right permission on /usr/lib/virtualbox/VirtualBox
By default, set to 6755, but
https://forums.virtualbox.org/viewtopic.php?t=11154 says 4711. This last
value doesn't work for me and seems really strange to me (the file isn't
executable any more).
I can't get a backtrace when running virtualbox in gdb as a normal user,
but it's more interesting when running as root (see below).

* crash in libqtcore :
# gdb /usr/lib/virtualbox/VirtualBox
GNU gdb (GDB) 7.3-debian
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later
<http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /usr/lib/virtualbox/VirtualBox...Reading symbols
from /usr/lib/debug/usr/lib/virtualbox/VirtualBox...done.
done.
(gdb) r
Starting program: /usr/lib/virtualbox/VirtualBox
[Thread debugging using libthread_db enabled]
[New Thread 0x7fa3f5fe4700 (LWP 9993)]
[New Thread 0x7fa3f5fc3700 (LWP 9994)]
[Thread 0x7fa3f5fc3700 (LWP 9994) exited]
[Thread 0x7fa3f5fe4700 (LWP 9993) exited]

Program received signal SIGSEGV, Segmentation fault.
0x00007fa3eeac893f in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
(gdb) bt
#0  0x00007fa3eeac893f in ?? () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#1  0x00007fa3eeac67e9 in QThread::currentThread() () from
/usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007fa3eebc5d88 in
QCoreApplicationPrivate::QCoreApplicationPrivate(int&, char**, unsigned
int) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#3  0x00007fa3edf6e603 in QApplicationPrivate::QApplicationPrivate(int&,
char**, QApplication::Type, int) () from
/usr/lib/x86_64-linux-gnu/libQtGui.so.4
#4  0x00007fa3edf7608d in QApplication::QApplication(_XDisplay*, int&,
char**, unsigned long, unsigned long, int) () from
/usr/lib/x86_64-linux-gnu/libQtGui.so.4
#5  0x00007fa3f046e3de in TrustedMain (argc=1, argv=<optimized out>) at
/tmp/buildd/virtualbox-4.1.16-dfsg/src/VBox/Frontends/VirtualBox/src/main.cpp:372
#6  0x00007fa3f5662ead in __libc_start_main () from
/lib/x86_64-linux-gnu/libc.so.6
#7  0x00000000004012a5 in _start ()
(gdb)

-------------------
SIGSEGV occurs ~10s after launching 'run'.

Please let me know if you needs more outputs.

Packages version :
virtualbox : 4.1.16-dfsg-1
libqtcore4 : 4:4.8.1-2