[Bug 272285] New: Akonadi crashes when moving/dragging task

[jolay]

https://bugs.kde.org/show_bug.cgi?id=272285

           Summary: Akonadi crashes when moving/dragging task
           Product: Akonadi
           Version: unspecified
          Platform: openSUSE RPMs
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: crash
          Priority: NOR
         Component: ICal file resource
        AssignedTo: kdepim-bugs at kde.org
        ReportedBy: jolay606 at gmail.com


Application: akonadi_ical_resource (0.1)
KDE Platform Version: 4.6.00 (4.6.0) "release 6"
Qt Version: 4.7.1
Operating System: Linux 2.6.37.6-0.5-desktop x86_64
Distribution: "openSUSE 11.4 (x86_64)"

-- Information about the crash:
- What I was doing when the application crashed:

Primary bug: I move task without associated hour by dragging it with mouse from
one day to the other in the kontact task panel (korganizer top panel) and
akonadiserver crashes most of the time.

Other noticeable bug is that doing the same operation may associate the task
with hour set at 0:00 (midnight) when akonadi does not crash. The task
positionned at midnight is out of normal view and the user may think it has
disappeared!

Dragging task from top panel (task without associated hour) to the calendar
panel ( task with associated hour) fails sometimes: the task reverts to the top
panel automagically  (without associated hour) as for late tasks (red).

I am not sure it has something to do with other reported bugs (task
modification/deleted).
My personnal calendar is stored in a local ics file mixing events and tasks.

reproducible many time: I cannot identify the exact condition. Maybe mouse
operations with late tasks. htop shows many processes racing for cpu usage (5-7
PID at 35%CPU each) notably korgac, kontact and nepomuk/virtuoso/mysqld or
akonadi, xorg etc before crash.

- Unusual behavior I noticed:

The laptop is running very slowly, 
most of the time I have cpu usage at 100% (dual core),
I have to wait  ~ 5 to 10 mn of 100% CPU usage after KDE4 login (user autostart
launch yakuake)

sysinfo:
NVIDIA 270.41.06
laptop dell precision m65
Intel(R) Core(TM)2 CPU T5500 @ 1.66GHz
RAM 2.0 Gio, used 1335/2005MB
used swap 63/2196MB

zypper info kontact
Dépot: @System
Nom: kontact
Version: 4.4.10-3.2
Arch: x86_64

Best regards,

The crash can be reproduced every time.

-- Backtrace:
Application: Akonadi Resource (akonadi_ical_resource), signal: Segmentation
fault
[KCrash Handler]
#6  begin (this=0x1855af0, incidence=0x139cc50) at
/usr/include/QtCore/qlist.h:97
#7  contains (this=0x1855af0, incidence=0x139cc50) at
/usr/include/QtCore/qlist.h:861
#8  removeRef (this=0x1855af0, incidence=0x139cc50) at
/usr/src/debug/kdepimlibs-4.6.0/kcal/listbase.h:118
#9  KCal::Incidence::removeRelation (this=0x1855af0, incidence=0x139cc50) at
/usr/src/debug/kdepimlibs-4.6.0/kcal/incidence.cpp:535
#10 0x00007f416b454cde in KCal::Incidence::~Incidence (this=0x139cc50,
__in_chrg=<value optimized out>) at
/usr/src/debug/kdepimlibs-4.6.0/kcal/incidence.cpp:207
#11 0x00007f416b4550a9 in KCal::Todo::~Todo (this=0x139cc50, __in_chrg=<value
optimized out>) at /usr/src/debug/kdepimlibs-4.6.0/kcal/todo.cpp:105
#12 0x000000000041311a in _start ()

Possible duplicates by query: bug 259199, bug 252103, bug 252084, bug 246124,
bug 238029.

Reported using DrKonqi

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