[Bug 337337] Re: mountmanager crashed with SIGSEGV in QGridLayout::rowCount()

[tdflanders]

root at thomas-laptop:/home/thomas# lsb_release -rd ; uname -a ; apt-cache policy mountmanager linux
Description:	Ubuntu 9.04
Release:	9.04
Linux thomas-laptop 2.6.28-11-generic #42-Ubuntu SMP Fri Apr 17 01:57:59 UTC 2009 i686 GNU/Linux
mountmanager:
  Installed: 0.2.6-0ubuntu2
  Candidate: 0.2.6-0ubuntu2
  Version table:
 *** 0.2.6-0ubuntu2 0
        500 http://archive.ubuntu.com jaunty/universe Packages
        100 /var/lib/dpkg/status
linux:
  Installed: 2.6.28.11.15
  Candidate: 2.6.28.11.15
  Version table:
 *** 2.6.28.11.15 0
        500 http://archive.ubuntu.com jaunty/restricted Packages
        100 /var/lib/dpkg/status
root at thomas-laptop:/home/thomas# 


It's a kernel issue:

root at thomas-laptop:/home/thomas# gdb mountmanager 2>&1 | tee gdb-mountmanager.txt
GNU gdb 6.8-debian
Copyright (C) 2008 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 "i486-linux-gnu"...
(gdb) handle SIG33 pass nostop noprint
Signal        Stop	Print	Pass to program	Description
SIG33         No	No	Yes		Real-time event 33
(gdb) set pagination 0
(gdb) run
Starting program: /usr/bin/mountmanager 
[Thread debugging using libthread_db enabled]
[New Thread 0xb6b3f920 (LWP 7033)]
6 records in /etc/fstab were detected. 
[G] DBus interface was created
[G] All devices were recieved
[I] Storage device was detected: "/dev/sr0" 
[I] Storage device was detected: "/dev/sda4" 
[I] Storage device was detected: "/dev/sda3" 
[I] Storage device was detected: "/dev/sda2" 
[I] Storage device was detected: "/dev/sda1" 
[I] Storage device was detected: "/dev/sda" 
[I] Storage device was detected: "/dev/sdb" 
[G] Parsing of  "/usr/share/mountmanager/options/common.xml"  was successful 
[G] Parsing of  "/usr/share/mountmanager/options/ntfs-3g.xml"  was successful 

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 0xb6b3f920 (LWP 7033)]
QGridLayout::rowCount (this=0xa123ff8) at kernel/qgridlayout.cpp:1268
1268	kernel/qgridlayout.cpp: No such file or directory.
	in kernel/qgridlayout.cpp
Current language:  auto; currently c++
(gdb) backtrace full
#0  QGridLayout::rowCount (this=0xa123ff8) at kernel/qgridlayout.cpp:1268
No locals.
#1  0x08099a06 in OptionsView::addOptions ()
No locals.
#2  0x080923a8 in VolumeWidget::VolumeWidget ()
No locals.
#3  0x0808745d in CentralWidget::addDevice ()
No locals.
#4  0x080894af in CentralWidget::CentralWidget ()
No locals.
#5  0x0807d06f in MainWindow::MainWindow ()
No locals.
#6  0x0807b13e in main ()
No locals.
(gdb) info registers
eax            0x0	0
ecx            0xbf900778	-1081079944
edx            0x80e4201	135152129
ebx            0x0	0
esp            0xbf9007cc	0xbf9007cc
ebp            0xbf900868	0xbf900868
esi            0xa2a23f8	170533880
edi            0xbf900848	-1081079736
eip            0xb758ad37	0xb758ad37 <QGridLayout::rowCount() const+7>
eflags         0x210202	[ IF RF ID ]
cs             0x73	115
ss             0x7b	123
ds             0x7b	123
es             0x7b	123
fs             0x0	0
gs             0x33	51
(gdb) thread apply all backtrace

Thread 1 (Thread 0xb6b3f920 (LWP 7033)):
#0  QGridLayout::rowCount (this=0xa123ff8) at kernel/qgridlayout.cpp:1268
#1  0x08099a06 in OptionsView::addOptions ()
#2  0x080923a8 in VolumeWidget::VolumeWidget ()
#3  0x0808745d in CentralWidget::addDevice ()
#4  0x080894af in CentralWidget::CentralWidget ()
#5  0x0807d06f in MainWindow::MainWindow ()
#6  0x0807b13e in main ()
(gdb) quit
The program is running.  Exit anyway? (y or n) y
root at thomas-laptop:/home/thomas# 

Attaching valgrind.log


** Attachment added: "valgrind.log"
   http://launchpadlibrarian.net/26041283/valgrind.log

-- 
mountmanager crashed with SIGSEGV in QGridLayout::rowCount()
https://bugs.launchpad.net/bugs/337337
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