https://bugs.documentfoundation.org/show_bug.cgi?id=145843
--- Comment #32 from Patrick Luby <plub...@neooffice.org> --- (In reply to Telesto from comment #30) > > Whole problem, I can create the issue with a few steps.. somehow, but not > everybody else does. > > Comment 8 works pretty reliable for me > > Alternative > 1. Open Impress from Start Center > 2. Double click BeeHive template > 3. LibreOffice -> About Window -> Press Copy About > 4. Close the dialog > 5. Enter Click to add title > 6. CMD+V > 7. LibreOffice -> About Window -> Press Copy about -> Might crash here > 8. Close the dialog > 9. Go to slide 2 > 10. CMD+V > 11. LibreOffice -> About Window -> Press Copy about -> Crash > > Alternative -> even less predictable > 1. Open Writer from Start Center > 2. LibreOffice -> Preferences -> View > 3. Uncheck Use Skia for all rendering > 4. Hoover over the Apply/ OK buttons.. Press Apply button. Close the restart > button. Press Cancel in the Preference dialog > > It appears Window related, the dialogs appear like tip of the day/ template > manager/ about window/ preference the often it happens. > > But will there some kind of timing element.. > > Sidenote: the patch attachment 181096 [details] authored by Luboš Luňák - > received by email - solves the issue. However a different patch got pushed > at comment 24 for unknown reasons Thank you for the steps. I can now reproduce the crash using your first alternative. I now understand why the patch in attachment 181096 was not used: it makes a copy of the bitmap in memory. It fixes the crashing, but it would require a lot more memory and frequently copying of bitmaps. I added the debug patch in attachment 184138 and I noticed the following debug output immediately before the crash: debug:2178:56744: XXX:0x600003e71e00 709x464*2R::1418x928::2::244x232@(399,156) 798,312,488,464::5672::6 2::6 2 debug:2178:56744: XXX:0x600003e71e00 709x464*2R::1418x928::2::200x145@(509,319) 1018,638,400,290::5672::6 2::6 22022-12-14 08:57:10.358900-0500 soffice[2178:56744] [org.libreoffice.script] copy_read_only: vm_copy failed: status 1. Note that the first line doesn't crash and the second one crashes. Both are taking a small subarea of the same bitmap. The difference is that the subarea in the second one aligns with the bottom, right edges of the bitmap. >From the above, I think that Luboš Luňák's "HACK for tdf#145843" in vcl/skia/osx/gdiimpl.cxx now makes sense to me. His fix is just missing cases like this. I will see if I am able to expand his fix to handle this case. -- You are receiving this mail because: You are the assignee for the bug.
