Bug 363488

Summary:	plasmashell freezes unpredictable
Product:	[Plasma] plasmashell	Reporter:	Kott <kv>
Component:	general	Assignee:	David Edmundson <kde>
Status:	RESOLVED DUPLICATE
Severity:	crash	CC:	bhush94, cfeck, plasma-bugs
Priority:	NOR
Version:	5.6.4
Target Milestone:	1.0
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed In:
Sentry Crash Report:

Description Kott 2016-05-25 03:33:09 UTC

I've changed my distro from OS 13.2 with Qt 5.6 and plasma-workspace 5.6.0 (from repos) to OS Tumbleweed mostly due often freezes in plasmashell.
When there (on Tumblewwed) was Qt 5.5.x and even plasma 5.6.x there weren't any freezes. Now it has Qt 5.6 and plasma 5.6.4, freezes came back...
I cannot realize the reasons or any what cause them, it simple freeze occasional in random time without any user action.

Reproducible: Sometimes

Steps to Reproduce:
1. Run plasma5-workspace.
2. Do something, or do nothing, just wait.


Actual Results:  
3. Plasma panel and desktop stops responding to mouse clicks.

Expected Results:  
plasmashell should work

NAME=openSUSE
VERSION="Tumbleweed"
VERSION_ID="20160520"
PRETTY_NAME="openSUSE Tumbleweed (20160520) (x86_64)"

Linux Kot 4.5.4-1-default #1 SMP PREEMPT Wed May 11 15:23:21 UTC 2016 (db90c25) x86_64 x86_64 x86_64 GNU/Linux

NVIDIA Driver Version: 364.19

Name        : libQt5Core5
Version     : 5.6.0

Name        : plasma5-workspace
Version     : 5.6.4

gdb trace:
http://pastebin.com/kmuTyNeP

Comment 1 Kott 2016-05-25 03:53:23 UTC

Well. I tried to clean ~/.cache. I tried to run fresh clean profile. It freezes.
What should I do else?

Comment 2 Kott 2016-05-26 01:40:58 UTC

Hm, guess I found some relation. It freeze during heavy disk/cpu load, eg make -j8
I caught freezes when compiled clementine and qbs, both times.

Maybe duplicates https://bugs.kde.org/show_bug.cgi?id=351897

Comment 3 Christoph Feck 2016-06-13 17:39:07 UTC

Can you confirm it works correctly with Qt 5.6.1?#

What you described could be bug 360408.

Comment 4 Kott 2016-06-16 01:11:10 UTC

>>Can you confirm it works correctly with Qt 5.6.1?

Not with 5.6.1 But 5.6.0 in main distr repo has this patch: https://build.opensuse.org/package/view_file/openSUSE:Factory/libqt5-qtbase/Fix-QtDBus-deadlock-inside-kded-kiod.patch?expand=1

I'm not sure when this patched version came in my install, but freezes with heavy load seems gone.

Comment 5 Christoph Feck 2016-06-16 08:46:17 UTC

Thanks for the update, closing.

If you get freezes again, please add a comment, or report a new bug.

*** This bug has been marked as a duplicate of bug 360408 ***