Bug 430601 - [Wayland][kwin] crash in eclipse + tentative of moving the frozen window lead to a system freeze (ui and keyboard not responding)
Summary: [Wayland][kwin] crash in eclipse + tentative of moving the frozen window lead...
Status: RESOLVED WORKSFORME
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (show other bugs)
Version: 5.20.4
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
: 430600 (view as bug list)
Depends on:
Blocks:
 
Reported: 2020-12-19 22:53 UTC by jonas-miles-kwecl
Modified: 2021-02-07 04:33 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
jonas-miles-kwecl: Wayland+


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Description jonas-miles-kwecl 2020-12-19 22:53:54 UTC
SUMMARY


STEPS TO REPRODUCE
1. use eclipse IDE
2. make the content assist crash by entering '.' and CTRL+SPACE
   (this stage is random)
3. This will make the ui freeze in some case (The application window became pale in my case)
4. try to move that frozen window or to close it with the mouse button
5. In my case after one try the system ui was not responding to mouse movements
   And the keyboard was not responding any more, I had to restart my entire system.

OBSERVED RESULT
No screen shot could be taken since the system froze.

EXPECTED RESULT
The crash one one application's UI should not be the cause of a full system freeze.


SOFTWARE/OS VERSIONS
kwin RPM version: kwin-5.20.4-2.fc33 

ADDITIONAL INFORMATION
Comment 1 David Edmundson 2020-12-20 23:14:15 UTC
If kwin is frozen, we're going to need a backtrace of the frozen kwin.

The easiest way is to ssh from another machine or phone ssh client and 

sudo gdb --pid `pidof kwin_wayland`
"bt"

and attach

I'm afraid it's very hard for us to do anything otherwise.
Comment 2 jonas-miles-kwecl 2020-12-21 19:42:50 UTC
Thank you for the advice I will try this if i reproduce the bug.
Comment 3 Bug Janitor Service 2021-01-05 04:33:56 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 4 jonas-miles-kwecl 2021-01-08 19:58:27 UTC
*** Bug 430600 has been marked as a duplicate of this bug. ***
Comment 5 Bug Janitor Service 2021-01-23 04:33:14 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 6 Bug Janitor Service 2021-02-07 04:33:16 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

Thank you for helping us make KDE software even better for everyone!