[Weechat-dev] [bug #36107] Issue with small windows, zooming, iset and being left in unusable state

[Filip H.F.]

URL:
  <http://savannah.nongnu.org/bugs/?36107>

                 Summary: Issue with small windows, zooming, iset and being
left in unusable state
                 Project: WeeChat
            Submitted by: fixato
            Submitted on: Fri 06 Apr 2012 00:31:59 GMT
                Category: None
                Severity: 3 - Normal
              Item Group: other
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: 
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any
                 Release: 0.3.7
                IRC nick: FiXato

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Details:

For quite some time now I've been having random issues with iset and zooming,
often leaving my WeeChat either in an unusable state (all windows displaying
the iset buffer and no way to get rid of it) or even crashing my WeeChat.

I've finally been able to reproduce it for myself on 2 different remote Ubuntu
hosts, connected via MinTTY (though I've experienced the bug with PuTTY as
SSH/Terminal client too), using a clean WeeChat environment.

Basically this happens when zooming in and out of the iset.pl buffer while it
is in a very small WeeChat window.

Steps to reproduce:

1. Resize your terminal window to a small size (for instance 50 columns by 15
rows) (see notes)
2. Start a clean WeeChat which only has the iset.pl script loaded
3. /window splith
4. /iset foobar

(at this point iset should be in 1 window and the weechat core buffer in the
other)

5. /window zoom
6. /window zoom

Now you should see the iset buffer in both windows. Also, trying to switch
buffers (/buffer 1) will lead to nothing.

Closing the iset buffer (/close) will most likely also not work and /quit is
the only way out.
Occasionally, when this occurs in my general setup, it will even crash.

I took screenshots along the way: http://fixato.org/screenshots/isetbug/

Notes:
1. I've used a very small terminal window here as it makes it easier to
reproduce. In my normal setup I use a much larger terminal window (160 Columns
by 75 Rows), but with many more /window splits and I found it usually only
occurs in a small WeeChat window.
2. While I use iset.pl to show this bug, my gut feeling says it could possibly
happen with any 'free' window.
3. Probably a different bug, but when resizing the terminal window, WeeChat
occasionally also gets a SIGSEGV.
4. When all windows are showing the iset.pl buffer as a result of this bugged
state, I've tried resetting the window layout, closing the iset buffer,
unloading the iset script, merging windows and changing the /buffer, but all
without any result.




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