Error 4 In Libqtcore.so.4.6.2
Status Importance Assigned to Milestone virtualbox (Ubuntu) Edit Confirmed Undecided Unassigned Edit You need to log in to change this bug's status. Affecting: virtualbox (Ubuntu) Filed here by: Mikko Valkonen When: 2012-06-28 Confirmed: 2012-07-03 Target Distribution Baltix BOSS Juju Charms Collection Elbuntu Guadalinex Guadalinex Edu Kiwi Linux nUbuntu PLD Linux Tilix tuXlab Ubuntu Ubuntu Linaro Evaluation Build Ubuntu RTM Package (Find…) Project (Find…) Status Importance Confirmed Undecided Assigned to Nobody Me Comment on this change (optional) Email me about changes to this bug report Also affects project (?) Also affects distribution/package Nominate for series Bug Description I have been successfully using the newest Oracle Virtualbox for Ubuntu 12.04 amd64 for quite a while now. Apparently libqtcore4 was upgraded a while ago and now I cannot start virtualbox anymore. The window pops up and closes after a couple of seconds. Nothing seems to help. I believe I've tracked the issue down to a piece of code in the libQtCore.so.4.8.1. Could not find a bug report on this, sorry if it's a double. I'll provide more information if necessary. msvalkon@Lunkwill:~/work/gecko/tools$ virtualbox Error opening file for reading: Permission denied <-- Which file could this be? Segmentation fault Dmesg: [ 6160.368735] VirtualBox[6144]: segfault at 29 ip 00007fd397f4824c sp 00007fff70efc3a8 error 4 in libQtCore.so.4.8.1[7fd397e86000+2c6000] Running gdb produces the following output: msvalkon@Lunkwill:~/work/gecko/tools$ sudo gdb /usr/lib/virtualbox/VirtualBox GNU gdb (Ubuntu/Linaro 7.4-2012.04-0ubuntu2) 7.4-2012.04 Copyright (C) 2012 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later
by: Damien Couroussé
including libQtcore and now Virtualbox segfaultsAgile Board ExportXMLWordPrintable Details Type: Bug Status: Need https://bugreports.qt.io/browse/QTBUG-38410 More Info Priority: Not Evaluated Resolution: Incomplete Affects Version/s: https://bugs.linuxsampler.org/cgi-bin/show_bug.cgi?id=143 4.8.5 Fix Version/s: None Component/s: QtExtras: X11 Labels: None Environment: Hide CENTOS 6.5 latest patches rpm -qa | grep -i qt dbusmenu-qt-0.9.2-0.4.el6.x86_64 qtwebkit-2.3.3-1.el6.x86_64 qt-x11-4.8.5-11.el6.x86_64 qt3-3.3.8b-30.el6.x86_64 qt-4.8.5-11.el6.x86_64 poppler-qt4-0.12.4-3.el6_0.1.x86_64 polkit-qt-0.103.0-0.6.el6.x86_64 ibus-qt-1.3.0-2.el6.x86_64 rpm -qa | grep -i virtualbox VirtualBox-4.3-4.3.10_93012_el6-1.x86_64 error 4 (problem still remains if VB downgraded to 4.2.2X) uname -a Linux bob 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25 19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Show CENTOS 6.5 latest patches rpm -qa | grep -i qt dbusmenu-qt-0.9.2-0.4.el6.x86_64 qtwebkit-2.3.3-1.el6.x86_64 qt-x11-4.8.5-11.el6.x86_64 qt3-3.3.8b-30.el6.x86_64 qt-4.8.5-11.el6.x86_64 poppler-qt4-0.12.4-3.el6_0.1.x86_64 polkit-qt-0.103.0-0.6.el6.x86_64 ibus-qt-1.3.0-2.el6.x86_64 rpm -qa error 4 in | grep -i virtualbox VirtualBox-4.3-4.3.10_93012_el6-1.x86_64 (problem still remains if VB downgraded to 4.2.2X) uname -a Linux bob 2.6.32-431.11.2.el6.x86_64 #1 SMP Tue Mar 25 19:59:55 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux Description VIrtualbox crashes (segfaults) on startup with the following being recorded in /var/spool/messages: VirtualBox[3519]: segfault at 0 ip 000000310407901f sp 00007fffee9412b0 error 4 in libQtCore.so.4.8.5[3104000000+2c4000] Was working fine until qt-4.8.5-11 and qt-x11-4.8.5 installed. OptionsIssue OnlyShow All ReviewsShow Open ReviewsShow All IssuesShow Open IssuesGerrit Reviews No reviews matched the request. Check your Options in the drop-down menu of this sections header. Activity Ascending order - Click to sort in descending order All Comments Work Log History Activity Transitions Hide Permalink David Faure (Private) added a comment - 17/Apr/14 8:34 PM "patched" ? Which patch did you apply? Or do you mean you simply upgraded
Qsampler crash at start : sementation fault : error 4 in libQtGui Summary: Qsampler crash at start : sementation fault : error 4 in libQtGui Status: CLOSED FIXED Alias: None Product: QSampler Classification: Unclassified Component: qsampler (show other bugs) Version: unspecified Hardware: PC Linux Importance: P2 critical Assignee: Rui Nuno Capela URL: Depends on: Blocks: Reported: 2010-03-14 19:19 CET by victor Modified: 2013-05-31 18:29 CEST (History) CC List: 1 user (show) cuse See Also: Attachments Add an attachment (proposed patch, testcase, etc.) Note You need to log in before you can comment on or make changes to this bug. Description victor 2010-03-14 19:19:03 CET Overview Description: I'm using Qsampler-0.2.2 on Gentoo; fresh install (2010-03-10) with real time kernel 2.6.31.12-r21, using jack-audio-connection-kit 1.9.5 and qjackctl 3.6 Qsampler crashes most of the time at start, but not every time (I can launch it every 4 to 8 times); when I launch it in a terminal : i just get (after the crash) : Segmentation fault When I type "dmesg" in a terminal after crash, I get : [ 533.049170] qsampler[3966]: segfault at 16f6448 ip 00007fdc60cbafc8 sp 00007fff46f56dc0 error 4 in libQtGui.so.4.6.2[7fdc605e6000+a4e000] [ 550.878995] qsampler[3979]: segfault at 7f3c02ae60e8 ip 00007f3ccabe9fc8 sp 00007fff7ec4fb80 error 4 in libQtGui.so.4.6.2[7f3cca515000+a4e000] [ 665.107963] qsampler[4004]: segfault at 7fb1016f6448 ip 00007fb145519fc8 sp 00007fff57999600 error 4 in libQtGui.so.4.6.2[7fb144e45000+a4e000] [ 674.752181] qsampler[4010]: segfault at 7fc0f97e02a8 ip 00007fc0fb3fcfc8 sp 00007fff9f4cc730 error 4 in libQtGui.so.4.6.2[7fc0fad28000+a4e000] (this came after 4 consecutive crashes) As the error message was poiting to libQtGui, i downgraded qt-gui (x11-libs/qt-qui as I'm on Gentoo) from 6.2.4 to 5.4.3 and it worked perfectly after that. This is reproducible on another machine with exactly the