Bug 648141 - okular causes system crash when zooming out in a PDF
Summary: okular causes system crash when zooming out in a PDF
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Fedora
Classification: Fedora
Component: kdegraphics
Version: 14
Hardware: x86_64
OS: Linux
low
high
Target Milestone: ---
Assignee: Than Ngo
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2010-10-31 09:37 UTC by Valentin Villenave
Modified: 2012-08-16 21:06 UTC (History)
8 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2012-08-16 21:06:26 UTC
Type: ---
Embargoed:


Attachments (Terms of Use)

Description Valentin Villenave 2010-10-31 09:37:44 UTC
Version-Release number of selected component (if applicable):

F14, KDE 4.5.2, okular 0.11.2. The bug didn't happen until the last yum update three days ago.

How reproducible:

Always.

Steps to Reproduce:
1. Open any PDF document (preferably multi-page) in okular.
2. Zoom in, pan: all goes smoothly.
3. Zoom out (quickly, e.g. using the mouse wheel): the system crashes.
  
Actual results:

The system immediately becomes unresponsive.  No tty switch, no Sysctrl
magic keys (which I *have* enabled on my system), no disk activity, nothing.  Hard reboot is the only option.

On one occasion, the CapsLock LED started blinking, indicating a kernel-panic.

Additional info:

- Also reported upstream as https://bugs.kde.org/show_bug.cgi?id=255704
The KDE team thinks (rightly so) that it looks like a low-level bug somewhere else in the kernel or graphic stack, although it's hard for me to pinpoint what exactly causes it.

- Launching okular with
   --graphicssystem raster
does solve the problem.

- Valgrind log only contains "uninitialized stuff", and since it stops logging as soon as the system freezes it's pretty useless.

Comment 1 Fedora End Of Life 2012-08-16 21:06:29 UTC
This message is a notice that Fedora 14 is now at end of life. Fedora 
has stopped maintaining and issuing updates for Fedora 14. It is 
Fedora's policy to close all bug reports from releases that are no 
longer maintained.  At this time, all open bugs with a Fedora 'version'
of '14' have been closed as WONTFIX.

(Please note: Our normal process is to give advanced warning of this 
occurring, but we forgot to do that. A thousand apologies.)

Package Maintainer: If you wish for this bug to remain open because you
plan to fix it in a currently maintained version, feel free to reopen 
this bug and simply change the 'version' to a later Fedora version.

Bug Reporter: Thank you for reporting this issue and we are sorry that 
we were unable to fix it before Fedora 14 reached end of life. If you 
would still like to see this bug fixed and are able to reproduce it 
against a later version of Fedora, you are encouraged to click on 
"Clone This Bug" (top right of this page) and open it against that 
version of Fedora.

Although we aim to fix as many bugs as possible during every release's 
lifetime, sometimes those efforts are overtaken by events.  Often a 
more recent Fedora release includes newer upstream software that fixes 
bugs or makes them obsolete.

The process we are following is described here: 
http://fedoraproject.org/wiki/BugZappers/HouseKeeping


Note You need to log in before you can comment on or make changes to this bug.