240438 - Mozilla freezes receiving XTEST synthetic events

Status: RESOLVED WORKSFORME

(SeaMonkey :: General, defect)

Description

[Francesco Bochicchio]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040207 Firefox/0.8
Build Identifier: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6) Gecko/20040207 Firefox/0.8

Mozilla Firefox 0.8, as well as Mozilla 1.4, often but not always freezes when
it receives an X event generated using XTEST XFree86 extension (e.g. the ones
generated using XTestFakeKeyEvent or the ones generated by the program
xvkbd (http://member.nifty.ne.jp/tsato/xvkbd/ ).
When this happens, the program stay alive but id does not respond to any event -
it does not even refresh the window if overlapped or resized. 


Reproducible: Always
Steps to Reproduce:
1. Run  xvkbd (virtual keyboard for X)
2. Select mozilla broser as focus target of xvkbd 
3. Press a key on the on-screen keyboard

Actual Results:  
Mozilla is unable to handle any other X event and needs to be killed.

Expected Results:  
Handle the 'faked' key press event as if it was a real one (as all other
applications I tried with xvkbd do)

Comment 1

[Francesco Bochicchio]

I discovered that the browser does not lock  forever. If I leave the program
running for a few minutes ( BTW top shows that it is not using CPU, just
sleeping). at last the event is handled, and from that moment XTEST events are
processed correctly.
This might suggest a bogus time-tagging of XTEST events, however all my other
applications (xterms and GUI based on gtk) do not have this problem. 

Comment 2

[Francesco Bochicchio]

The problem disappeared with Firefox 0.9.3.

NOTE : some time after the bug report, the problem started to occurr also with
real keybord events, not only with the ones generated using the XTEST estension.

I'm not sure if this is the right thing to do, but I will mark the bug as FIXED
(shouldn't be an option  OBSOLETED or something like that?)

Comment 3

[Jason Bassford]

No bug/patch referenced as the fix.

->WORKSFORME