GNU Octave - Bugs: bug #55963, waitbar...

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bug #55963: waitbar "createcancelbtn" property results in octave hang

Submitter:	Mario Mielenhausen <mariomie>
Submitted:	Wed 20 Mar 2019 07:32:26 AM UTC


Category:	Octave Function	Severity:	3 - Normal
Priority:	5 - Normal	Item Group:	Regression
Status:	Fixed	Assigned to:	None
Originator Name:		Open/Closed: *	Closed
Release: *	5.1.0	Operating System: *	Any
Fixed Release:	None	Planned Release:	None

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Wed 27 Mar 2019 07:47:36 PM UTC, comment #4: @Rik: Thanks, this will give us some time to think about this synchronous approach which doesn't really fix what it was meant to fix (bug #52225, bug #53328 among others), may lead to deadlocks and finally slows things down (see bug #55418).	Pantxo Diribarne <pantxo>
Wed 27 Mar 2019 07:33:23 PM UTC, comment #3: I checked in a change that allows things to work (https://hg.savannah.gnu.org/hgweb/octave/rev/a7ad08ed3cb7). Ultimately, it would be better if creating Qt widgets synchronously would never result in a deadlock situation. The fix will be part of the 5.2.0 bug fix release.	Rik <rik5>
Wed 20 Mar 2019 09:40:29 PM UTC, comment #2: This is due to this cset: changeset: 26276:5535267e88ba branch: stable parent: 26272:aa47b1287d7e user: Pantxo Diribarne <pantxo.diribarne@gmail.com> date: Sat Dec 15 11:31:31 2018 +0100 summary: Make creation and destruction of Qt widgets synchronous (bug #55526) One more regression ...	Pantxo Diribarne <pantxo>
Wed 20 Mar 2019 04:12:36 PM UTC, comment #1: Confirmed. I have the same problem on a Linux system so I've change the affected Operating System ot Any. Marking as a regression.	Rik <rik5>
Wed 20 Mar 2019 07:32:26 AM UTC, original submission: Running the createcancelbtn demo of the waitbar.m file (line 269-317) on windows 7 Octave version 5.1.0 results in octave not responing with a blank waitbar window.	Mario Mielenhausen <mariomie>

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Items that depend on this one

"demo waitbar 4" hangs in Octave 5 (bug #56483, Duplicate)

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Follow 7 latest changes.

Date	Changed by	Updated Field	Previous Value	Replaced by
2019-06-12	mtmiller	Dependencies	-	bugs #56483 is dependent
2019-03-27	rik5	Status	Confirmed	Fixed
		Open/Closed	Open	Closed
2019-03-20	rik5	Summary	waitbar createcancelbtn results in octave crash	waitbar "createcancelbtn" property results in octave hang
2019-03-20	rik5	Item Group	Unexpected Error or Warning	Regression
		Status	None	Confirmed
		Operating System	Microsoft Windows	Any

GNU Octave - Bugs: bug #55963, waitbar...

bug #55963: waitbar "createcancelbtn" property results in octave hang

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