https://bugs.documentfoundation.org/show_bug.cgi?id=149807

            Bug ID: 149807
           Summary: Libreoffice Calc regularly/randomly hangs on macOS
                    mojave
           Product: LibreOffice
           Version: 7.2.7.2 release
          Hardware: x86-64 (AMD64)
                OS: macOS (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: [email protected]
          Reporter: [email protected]

Description:
Libreoffice Calc regularly/randomly hangs on macOS mojave and has to be
force-quit, recovered and data re-entered.



Steps to Reproduce:
Open a new calc spreadsheet.
Copy and paste URLs from chrome address bar into various cells (no idea if
chrome or copy/paste has anything to do with it).
After a few copy and pastes LO/Calc hangs (spinning wheel).  
Can leave it for 30 minutes and it is still the spinning beachball of death.
Eventually have to "force quit" and start/recover documents.  
I get the apple error reporter but no libreoffice error reporter because it is
a hang and so I guess the LO crash reporter also can't come up before the force
quit from macos side.

Sometimes just right clicking on a cell causes the hang (was trying to test
mouse paste vs keyboard paste).  Didn't get to paste, just the mouseclick
caused hang.

Paste unformatted doesn't make a difference.

Restarted in safe mode and created a new Calc document... I could still
reproduce in safe mode.  I did not reset my profile because the docs
(https://wiki.documentfoundation.org/UserProfile#Help_wizard_.28LibreOffice_5.3_and_newer.29)
say if the problem is reproducible in safe-mode that the user profile is not
the problem.

Problem is also present on 7.3.X.  I just downgraded to 7.2 hoping the problem
would go away.

Hardware acceleration is disabled.
Skia is disabled (in the 7.3 version that had the issue).


macos Mojave
2012 Macbook pro
external monitor via thunderbolt 2 dock
No clipboard management apps.

I can't reproduce this in predictable steps because it isn't clear exactly what
is triggering the hang.  ...but it is happening often enough that I can't use
Calc anymore because the hangs are frequent enough I have to constantly
force-quit/recover and re-enter data lost since the last autosave.

I suspect it is some hardware/rendering bug specific to my hardware or macOS
version.  I used Libreoffice for a long time with this hardware setup and it
was rock solid (no crashes/hangs).  This has only become a problem in the last
few months I guess.

I guess next step could be to downgrade minor version by minor version until
the problem goes away so we at least know which commit-set introduced this.



Actual Results:
Libreoffice calc hangs regularly during mouse or clipboard interaction and has
to be force quit.

Expected Results:
Calc should not hang


Reproducible: Always


User Profile Reset: Yes



Additional Info:
Happy to provide system/hardware report but not sure what format you might want
that in.  I can also provide the crash dump text that apple generates after the
force quit.

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