Bug 122447 - konsole windows sometimes freeze up
Summary: konsole windows sometimes freeze up
Status: RESOLVED WORKSFORME
Alias: None
Product: konsole
Classification: Applications
Component: general (show other bugs)
Version: unspecified
Platform: Slackware Linux
: NOR crash
Target Milestone: ---
Assignee: Konsole Developer
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2006-02-21 21:43 UTC by Jesper Juhl
Modified: 2008-07-25 21:53 UTC (History)
1 user (show)

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Description Jesper Juhl 2006-02-21 21:43:33 UTC
Version:            (using KDE KDE 3.5.1)
Installed from:    Slackware Packages
OS:                Linux

Sometimes konsole windows freeze up on me.

It doesn't matter if I'm using sepperate konsole windows or multiple tabs within a single one, sometimes one or more of them just freeze up.
Sometimes it happens when the window has been left alone for a while and when I come back to it it's frozen - nothing can be entered into it at all, only solution is to close it and start a new one. Sometimes it happens right after executing a command - you press enter, the command runs, then you try to enter something else and discover it's locked up.

I've tried starting konsole from a xterm window, just to see if it would dump something there before it locks up, but unfortunately that's not the case.
I've not found a reliable way to reproduce it unfortunately, but so far I think I can say with a good deal of confidence that if I open 8 konsole windows and/or tabs then at least one of them will freeze up on me within 2 hours.

To me this smells of a race condition somewhere, and the box is indeed running an SMP kernel on a dual-core Athlon 64 X2 4400+ (32bit kernel).

If there's anything I can do to help narrow down what's going on or any info I can provide that might help, then please let me know.
Comment 1 Maksim Orlovich 2006-02-21 22:26:49 UTC
Are you using xine?
Comment 2 Jesper Juhl 2006-02-21 22:30:13 UTC
I have xine installed and I occasionally launch xine from firefox, but I never launch xine from a konsole window.
The freezing of konsole windows also happens even when I've not been running xine since powering on the computer.
Comment 3 Thiago Macieira 2006-02-25 19:32:13 UTC
Make sure you did not press Ctrl+S or ScrollLock. If you did, you can unfreeze by pressing Ctrl+Q or ScrollLock again.
Comment 4 Jesper Juhl 2006-02-25 19:33:41 UTC
I'm well aware of the effects of CTRL+S / CTRL+Q  that's not what's going on here.
Comment 5 Jim Kwon 2006-06-03 04:07:15 UTC
This also happens to plain xterms, not just 'konsole'.

The xterm process itself appears to be fine (scroll bars work, menus work, etc.). Is this a bash shell problem?

I'm using KDE 3.4.2 under Slackware 10.2.

A possible lead: I've noticed that it seems like these konsole/xterm/bash freezings/"lock-ups" occur soon after KDE starts up. When these annoying lock-ups occur I've had to open another konsole/xterm to kill the offending process. However, after killing the offending konsole's/xterm's and using KDE for a while, I don't seem to notice any more konsole/xterm lock-ups.

One hypothesis might be that the freezings/lock-ups occur in those konsole's/xterm's that KDE automatically restores at start-up - I don't think I've had newly-created konsole's/xterm's freeze (so far at least, after several days of use); it was always the ones that were "restored" that seemed susceptible to freezing.

The newly-created xterm's show up on the job list normally. The xterm's that were "restored" had some long session ID number (I don't remember exactly at the moment) as part of the arguments, as well as other "junk." Perhaps there was something in those mysterious arguments that wasn't "quite right?"
Comment 6 Robert Knight 2007-02-10 04:48:51 UTC
Is there any update on this?  Does it still happen?
Comment 7 Jesper Juhl 2007-02-12 08:59:49 UTC
I've been running KDE 3.5.4 since it came out and I've not experienced the problem again since that upgrade.
Comment 8 Jesper Juhl 2007-02-12 09:00:21 UTC
Problem appears to be solved. Closing.