[Libreoffice-bugs] [Bug 119503] New: Use of mouse scroll wheel then graphics work with Writer and Calc open then more scroll action causes Crash

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=119503

            Bug ID: 119503
           Summary: Use of mouse scroll wheel then graphics work with
                    Writer and Calc open then more scroll action causes
                    Crash
           Product: LibreOffice
           Version: 6.1.0.3 release
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: LibreOffice
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: matthewnote at yahoo.co.uk

Description:
Similar to Bug 106037 with LO 6.0.6.   With Lubuntu 18.04 and LO 6.10 the LO
starts up fine.  When selecting the first field, data entry in one cell of a
spreadsheet in Calc, the keyboard taps are shown some nine to ten seconds
later.  After that wait the number or letters appear; all the further data
entries or manipulations catch up and happen at usual speed.  After much
graphics work or  copying and pasting to Writer, suddenly LO crashes.  With LO
6.0.6 a PC freeze needed restart;  with LO 6.10 the Lubuntu remains
operational. 

Steps to Reproduce:
1.  A spreadsheet with many calculations and about 200 graphics, ten sheets.
2.  Move the view up or down using mouse thumbwheel (or slider)
3.  Data entry, modifications and more thumbwheel eventually may cause crash.
4.  The files were created with 6.0.6, about 15 MB and graphically complex.
5.  There's an impression at the crash (experience) that it was due to some
mouse or keyboard action about ten seconds before, the same delay described as
happening only at the first cell after opening the file for the first time. 
Difficult to be sure, yet crash occurs at odd moments, the reproduceable cause
which may be identical every time - occurred ten seconds earlier while working
(it seems).  Much more difficult to say what it was.

Actual Results:
crashreport.libreoffice.org/stats/crash_details/3fcb915a-557e-42b4-808e-9fb5737c1d82

If LO 6.10 is used,without crash then left running for hours without further
inputs, no crash occurs (no cumulative problem).  It seems to be provoked by
panning the page.

Expected Results:
Document Recovery occurs successfully (always so far, yet versions are backed
up manually frequently too).


Reproducible: Sometimes


User Profile Reset: No


OpenGL enabled: Yes

Additional Info:
Version: 6.1.0.3
Build ID: efb621ed25068d70781dc026f7e9c5187a4decd1
CPU threads: 4; OS: Linux 4.15; UI render: default; VCL: gtk2; 
Locale: fr-FR (fr_FR.UTF-8); Calc: group threaded

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