iOS app: crash when cursor is in a writer table for ~30s

[nikslor]

Describe the bug
When placing the cursor in a table in a writer document and just wait for ~30s the app will crash.

To Reproduce
Steps to reproduce the behavior:

1. Open a writer document in the iOS app
2. Add a table (in my case 3x3)
3. Put the cursor in a cell of the table
4. Wait for ~30s

Expected behavior
Nothing should happen.

Actual behavior
The app crashes.

Tablet

• OS: iOS 14.1
• Version: 6.4.0 (5)

Additional context
I have a hardware keyboard (Apple Smart Keyboard) attached.

[tml1024]

Investigating.

[tml1024]

It seems that while the cursor (caret) is inside the table, the JS (or maybe C++?) code is requesting tiles over and over again, or something like that. This then seems to overwhelm the WebContent process (possibly these tiles are leaked by the JS or C++ code?), and the WebContent process crashes. Here is a snippet of the log (with log level "debug"):

2020-10-23 11:52:57.284571 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 imgsize=0 tilewidth=3840 tileheight=3840 ver=4346 oldwid=0 wid=0 | Kit.cpp:1860
2020-10-23 11:52:57.292949 [ lokit_runloop ] DBG paintPartTile at (0, 0), (3840, 3840) rendered in 8.152 ms (32.157 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.309837 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4346| DocumentBroker.cpp:2060
2020-10-23 11:52:57.309932 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4346| TileCache.cpp:196
2020-10-23 11:52:57.310060 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 imgsize=0 tilewidth=3840 tileheight=3840 ver=4347 oldwid=0 wid=0 | Kit.cpp:1860
2020-10-23 11:52:57.312646 [ lokit_runloop ] DBG paintPartTile at (0, 0), (3840, 3840) rendered in 2.363 ms (110.937 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.318129 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4347| DocumentBroker.cpp:2060
2020-10-23 11:52:57.318303 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4347| TileCache.cpp:196
2020-10-23 11:52:57.318421 [ docbroker_001 ] DBG STATISTICS: tile 4347 internal roundtrip 42 ms.| TileCache.cpp:243
2020-10-23 11:52:57.340906 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,0,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.340955 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,3840,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.340970 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,7680,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.340907 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0,3840,7680 tileposy=0,0,0 imgsize=0,0,0 tilewidth=3840 tileheight=3840 ver=4348,4349,4350 oldwid=0,0,0 wid=0,0,0 | Kit.cpp:1860
2020-10-23 11:52:57.341287 [ docbroker_001 ] DBG Redundant request to subscribe on tile (0,0,0,0)| TileCache.cpp:430
2020-10-23 11:52:57.344483 [ lokit_runloop ] DBG paintPartTile at (0, 0), (11520, 3840) rendered in 3.093 ms (254.262 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.348830 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4348| DocumentBroker.cpp:2060
2020-10-23 11:52:57.348907 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4348| TileCache.cpp:196
2020-10-23 11:52:57.349790 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4349| DocumentBroker.cpp:2060
2020-10-23 11:52:57.349866 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4349| TileCache.cpp:196
2020-10-23 11:52:57.349967 [ docbroker_001 ] DBG STATISTICS: tile 4349 internal roundtrip 9 ms.| TileCache.cpp:243
2020-10-23 11:52:57.350758 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4350| DocumentBroker.cpp:2060
2020-10-23 11:52:57.350821 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4350| TileCache.cpp:196
2020-10-23 11:52:57.350918 [ docbroker_001 ] DBG STATISTICS: tile 4350 internal roundtrip 10 ms.| TileCache.cpp:243
2020-10-23 11:52:57.351143 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 imgsize=0 tilewidth=3840 tileheight=3840 ver=4351 oldwid=0 wid=0 | Kit.cpp:1860
2020-10-23 11:52:57.354339 [ lokit_runloop ] DBG paintPartTile at (0, 0), (3840, 3840) rendered in 2.949 ms (88.8925 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.358072 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4351| DocumentBroker.cpp:2060
2020-10-23 11:52:57.358184 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4351| TileCache.cpp:196
2020-10-23 11:52:57.358531 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 imgsize=0 tilewidth=3840 tileheight=3840 ver=4352 oldwid=0 wid=0 | Kit.cpp:1860
2020-10-23 11:52:57.362232 [ lokit_runloop ] DBG paintPartTile at (0, 0), (3840, 3840) rendered in 3.463 ms (75.6985 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.366311 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4352| DocumentBroker.cpp:2060
2020-10-23 11:52:57.366489 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4352| TileCache.cpp:196
2020-10-23 11:52:57.366609 [ docbroker_001 ] DBG STATISTICS: tile 4352 internal roundtrip 25 ms.| TileCache.cpp:243
2020-10-23 11:52:57.388900 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,0,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.388948 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,3840,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.388935 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0,3840,7680 tileposy=0,0,0 imgsize=0,0,0 tilewidth=3840 tileheight=3840 ver=4353,4354,4355 oldwid=0,0,0 wid=0,0,0 | Kit.cpp:1860
2020-10-23 11:52:57.388961 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,7680,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.389084 [ docbroker_001 ] DBG Redundant request to subscribe on tile (0,0,0,0)| TileCache.cpp:430
2020-10-23 11:52:57.392542 [ lokit_runloop ] DBG paintPartTile at (0, 0), (11520, 3840) rendered in 3.182 ms (247.15 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.393971 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4353| DocumentBroker.cpp:2060
2020-10-23 11:52:57.394047 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4353| TileCache.cpp:196
2020-10-23 11:52:57.394988 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4354| DocumentBroker.cpp:2060
2020-10-23 11:52:57.395065 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4354| TileCache.cpp:196
2020-10-23 11:52:57.395166 [ docbroker_001 ] DBG STATISTICS: tile 4354 internal roundtrip 6 ms.| TileCache.cpp:243
2020-10-23 11:52:57.397840 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4355| DocumentBroker.cpp:2060
2020-10-23 11:52:57.397920 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4355| TileCache.cpp:196
2020-10-23 11:52:57.398024 [ docbroker_001 ] DBG STATISTICS: tile 4355 internal roundtrip 9 ms.| TileCache.cpp:243
2020-10-23 11:52:57.398182 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 imgsize=0 tilewidth=3840 tileheight=3840 ver=4356 oldwid=0 wid=0 | Kit.cpp:1860
2020-10-23 11:52:57.402381 [ lokit_runloop ] DBG paintPartTile at (0, 0), (3840, 3840) rendered in 3.954 ms (66.2984 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.405979 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4356| DocumentBroker.cpp:2060
2020-10-23 11:52:57.406075 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4356| TileCache.cpp:196
2020-10-23 11:52:57.406161 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 imgsize=0 tilewidth=3840 tileheight=3840 ver=4357 oldwid=0 wid=0 | Kit.cpp:1860
2020-10-23 11:52:57.409617 [ lokit_runloop ] DBG paintPartTile at (0, 0), (3840, 3840) rendered in 3.148 ms (83.2732 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.413898 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4357| DocumentBroker.cpp:2060
2020-10-23 11:52:57.413981 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4357| TileCache.cpp:196
2020-10-23 11:52:57.414093 [ docbroker_001 ] DBG STATISTICS: tile 4357 internal roundtrip 25 ms.| TileCache.cpp:243
2020-10-23 11:52:57.436639 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,0,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.436685 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,3840,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.436701 [ docbroker_001 ] DBG Subscribing ToClient-001 to tile (0,0,7680,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-23 11:52:57.436649 [ lokit_runloop ] DBG child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0,3840,7680 tileposy=0,0,0 imgsize=0,0,0 tilewidth=3840 tileheight=3840 ver=4358,4359,4360 oldwid=0,0,0 wid=0,0,0 | Kit.cpp:1860
2020-10-23 11:52:57.436868 [ docbroker_001 ] DBG Redundant request to subscribe on tile (0,0,0,0)| TileCache.cpp:430
2020-10-23 11:52:57.440254 [ lokit_runloop ] DBG paintPartTile at (0, 0), (11520, 3840) rendered in 3.12 ms (252.062 MP/s).| RenderTiles.hpp:533
2020-10-23 11:52:57.441644 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4358| DocumentBroker.cpp:2060
2020-10-23 11:52:57.441722 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4358| TileCache.cpp:196
2020-10-23 11:52:57.442851 [ docbroker_001 ] DBG Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4359| DocumentBroker.cpp:2060
2020-10-23 11:52:57.442919 [ docbroker_001 ] DBG Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=4359| TileCache.cpp:196
2020-10-23 11:52:57.443014 [ docbroker_001 ] DBG STATISTICS: tile 4359 internal roundtrip 6 ms.| TileCache.cpp:243

[tml1024]

Reproducible on Linux with a "make run", too. Open a text document with a simple 3x3 table, just let it sit there, with the caret in a table cell. The /tmp/loolwsd.log will show an endless stream of stuff going on. Surely this can not be normal?

[tml1024]

Sample document. (The .zip contains a single .odt, because silly GitHub doesn't accept .odt files as attachments in comments...)
00AA.zip

[tml1024]

More accurately, it isn't the Online code (JS or C++) that requests tiles spontaneously in a loop, but the core code that sends LOK_CALLBACK_INVALIDATE_TILES callbacks, I think. Backtraces from these:

#0 SfxLokHelper::notifyInvalidation(SfxViewShell const*, rtl::OString const&) (pThisView=0x6f1ac50, rPayload="284, 284, 5589, 3001")
at sfx2/source/view/lokhelper.cxx:490
#1 0x00007fbebcd1c948 in SwEditWin::LogicInvalidate(tools::Rectangle const*) (this=0x7245d20, pRectangle=0x7ffc773d5c60) at sw/source/uibase/docvw/edtwin.cxx:6357
#2 0x00007fbed248fc82 in vcl::Window::Invalidate(tools::Rectangle const&, InvalidateFlags) (this=0x7245d20, rRect=..., nFlags=InvalidateFlags::NONE)
at vcl/source/window/paint.cxx:1183
#3 0x00007fbebc8bf144 in SwViewShell::InvalidateWindows(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:565
#4 0x00007fbebc8be3b4 in SwViewShell::ImplEndAction(bool) (this=0x7258f50, bIdleEnd=false) at sw/source/core/view/viewsh.cxx:428
#5 0x00007fbebb915c71 in SwViewShell::EndAction(bool) (this=0x7258f50, bIdleEnd=false) at sw/inc/viewsh.hxx:600
#6 0x00007fbebb9024a5 in SwCursorShell::EndAction(bool, bool) (this=0x7258f50, bIdleEnd=false, DoSetPosX=false) at sw/source/core/crsr/crsrsh.cxx:254
#7 0x00007fbebbf2c083 in SwEditShell::ApplyViewOptions(SwViewOption const&) (this=0x7258f50, rOpt=...) at sw/source/core/edit/editsh.cxx:1059
#8 0x00007fbebd0a9727 in SwWrtShell::ApplyViewOptions(SwViewOption const&) (this=0x7258f50, rOpt=...) at sw/source/uibase/wrtsh/wrtsh1.cxx:1803
#9 0x00007fbebc8c841e in SwViewShell::PaintTile(VirtualDevice&, int, int, int, int, long, long)
(this=0x7258f50, rDevice=..., contextWidth=1536, contextHeight=512, tilePosX=0, tilePosY=0, tileWidth=11520, tileHeight=3840)
at sw/source/core/view/viewsh.cxx:1934
#10 0x00007fbebcfd461e in SwXTextDocument::paintTile(VirtualDevice&, int, int, int, int, long, long)
(this=0x706cb50, rDevice=..., nOutputWidth=1536, nOutputHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at sw/source/uibase/uno/unotxdoc.cxx:3149
#11 0x00007fbebcfd46c0 in non-virtual thunk to SwXTextDocument::paintTile(VirtualDevice&, int, int, int, int, long, long) ()
at /home/tml/lo/cp-6.4/instdir/program/../program/libswlo.so
#12 0x00007fbeda0ce6d9 in doc_paintTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int)
(pThis=0x7688960, pBuffer=0x8729310 "", nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at desktop/source/lib/init.cxx:3166
#13 0x00007fbeda0cf340 in doc_paintPartTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int, int)
(pThis=0x7688960, pBuffer=0x8729310 "", nPart=0, nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at desktop/source/lib/init.cxx:3296
#14 0x000000000055fa52 in lok::Document::paintPartTile(unsigned char*, int, int, int, int, int, int, int)
(this=0x767f340, pBuffer=0x8729310 "", nPart=0, nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:584
#15 0x000000000054da07 in RenderTiles::doRender(std::shared_ptrlok::Document, TileCombined&, PngCache&, ThreadPool&, bool, std::function<void (unsigned char*, int, int, unsigned long, unsigned long, int, int, LibreOfficeKitTileMode)> const&, std::function<void (char const*, unsigned long)> const&)
(document=std::shared_ptrlok::Document (use count 2, weak count 0) = {...}, tileCombined=..., pngCache=..., pngPool=..., combined=true, blendWatermark=..., outputMessage=...) at ./common/RenderTiles.hpp:523
#16 0x000000000056b33b in Document::renderTiles(TileCombined&, bool) (this=0x6f91010, tileCombined=..., combined=true) at kit/Kit.cpp:662
#17 0x000000000056ab7a in Document::renderCombinedTiles(StringVector const&) (this=0x6f91010, tokens=...) at kit/Kit.cpp:631
#18 0x0000000000575737 in Document::drainQueue(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) (this=0x6f91010) at kit/Kit.cpp:1429
#19 0x00000000005778b2 in KitSocketPoll::drainQueue(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) (this=0x1a83c50, now=...) at kit/Kit.cpp:1717
#20 0x0000000000577c01 in KitSocketPoll::kitPoll(int) (this=0x1a83c50, timeoutMicroS=0) at kit/Kit.cpp:1759
#21 0x00000000005548ae in pollCallback(void*, int) (pData=0x1a83c50, timeoutUs=0) at kit/Kit.cpp:1988
#22 0x00007fbed31aaed7 in SvpSalInstance::DoYield(bool, bool) (this=0x1ad1100, bWait=true, bHandleAllCurrentEvents=false) at vcl/headless/svpinst.cxx:492
#23 0x00007fbed2f55b59 in ImplYield(bool, bool) (i_bWait=true, i_bAllEvents=false) at vcl/source/app/svapp.cxx:445
#24 0x00007fbed2f55910 in Application::Yield() () at vcl/source/app/svapp.cxx:509
#25 0x00007fbed2f55899 in Application::Execute() () at vcl/source/app/svapp.cxx:426
#26 0x00007fbeda017e5d in desktop::Desktop::Main() (this=0x7ffc773dbc68) at desktop/source/app/app.cxx:1617
#27 0x00007fbed2f76ac4 in ImplSVMain() () at vcl/source/app/svmain.cxx:191
#28 0x00007fbed2f78379 in SVMain() () at vcl/source/app/svmain.cxx:225
#29 0x00007fbeda08af10 in soffice_main() () at desktop/source/app/sofficemain.cxx:115
#30 0x00007fbeda0e8a83 in lo_runLoop(_LibreOfficeKit*, int ()(void, int), void ()(void), void*)
(pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50) at desktop/source/lib/init.cxx:5909
#31 0x000000000055fce7 in lok::Office::runLoop(int ()(void, int), void ()(void), void*)
(this=0x6f7bdc0, pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:983
#32 0x000000000055a594 in lokit_main(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, bool, bool, bool, bool, unsigned long)
(childRoot="/home/tml/lo/online-co-6-4/jails/", jailId="HB3sTabU5lxIEOGW", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", noCapabilities=false, noSeccomp=false, queryVersion=false, displayVersion=true, numericIdentifier=2) at kit/Kit.cpp:2408
#33 0x0000000000534766 in createLibreOfficeKit(std::string const&, std::string const&, std::string const&, std::string const&, bool)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", queryVersion=false) at kit/ForKit.cpp:356
#34 0x0000000000535068 in forkLibreOfficeKit(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", limit=0) at kit/ForKit.cpp:406
#35 0x0000000000537ac2 in main(int, char**) (argc=19, argv=0x7ffc773e1c08) at kit/ForKit.cpp:669

#0 SfxLokHelper::notifyInvalidation(SfxViewShell const*, rtl::OString const&) (pThisView=0x6f1ac50, rPayload="1474, 1474, 9525, 651")
at sfx2/source/view/lokhelper.cxx:490
#1 0x00007fbebcd1c948 in SwEditWin::LogicInvalidate(tools::Rectangle const*) (this=0x7245d20, pRectangle=0x7ffc773d4cd0) at sw/source/uibase/docvw/edtwin.cxx:6357
#2 0x00007fbed248fc82 in vcl::Window::Invalidate(tools::Rectangle const&, InvalidateFlags) (this=0x7245d20, rRect=..., nFlags=InvalidateFlags::NONE)
at vcl/source/window/paint.cxx:1183
#3 0x00007fbebc8bf144 in SwViewShell::InvalidateWindows(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:565
#4 0x00007fbebc8c6b62 in SwViewShell::CheckInvalidForPaint(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:1692
#5 0x00007fbebc8c73c9 in SwViewShell::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7258f50, rRenderContext=..., rRect=...)
at sw/source/core/view/viewsh.cxx:1832
#6 0x00007fbebb90bd98 in SwCursorShell::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7258f50, rRenderContext=..., rRect=...)
at sw/source/core/crsr/crsrsh.cxx:1413
#7 0x00007fbebcd33462 in SwEditWin::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7245d20, rRenderContext=..., rRect=...)
at sw/source/uibase/docvw/edtwin2.cxx:441
#8 0x00007fbed248a788 in PaintHelper::DoPaint(vcl::Region const*) (this=0x7ffc773d5d10, pRegion=0x0) at vcl/source/window/paint.cxx:311
#9 0x00007fbed248c422 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x7245d20, pRegion=0x0, nPaintFlags=ImplPaintFlags::Erase)
at vcl/source/window/paint.cxx:615
#10 0x00007fbed248dc9b in vcl::Window::Update() (this=0x7245d20) at vcl/source/window/paint.cxx:1346
#11 0x00007fbebc8c405a in SwViewShell::VisPortChgd(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:1242
#12 0x00007fbebb90c131 in SwCursorShell::VisPortChgd(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/crsr/crsrsh.cxx:1459
#13 0x00007fbebc8c8571 in SwViewShell::PaintTile(VirtualDevice&, int, int, int, int, long, long)
(this=0x7258f50, rDevice=..., contextWidth=1536, contextHeight=512, tilePosX=0, tilePosY=0, tileWidth=11520, tileHeight=3840)
at sw/source/core/view/viewsh.cxx:1949
#14 0x00007fbebcfd461e in SwXTextDocument::paintTile(VirtualDevice&, int, int, int, int, long, long)
(this=0x706cb50, rDevice=..., nOutputWidth=1536, nOutputHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at sw/source/uibase/uno/unotxdoc.cxx:3149
#15 0x00007fbebcfd46c0 in non-virtual thunk to SwXTextDocument::paintTile(VirtualDevice&, int, int, int, int, long, long) ()
at /home/tml/lo/cp-6.4/instdir/program/../program/libswlo.so
#16 0x00007fbeda0ce6d9 in doc_paintTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int)
(pThis=0x7688960, pBuffer=0x8729310 "", nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at desktop/source/lib/init.cxx:3166
#17 0x00007fbeda0cf340 in doc_paintPartTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int, int)
(pThis=0x7688960, pBuffer=0x8729310 "", nPart=0, nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at desktop/source/lib/init.cxx:3296
#18 0x000000000055fa52 in lok::Document::paintPartTile(unsigned char*, int, int, int, int, int, int, int)
(this=0x767f340, pBuffer=0x8729310 "", nPart=0, nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:584
#19 0x000000000054da07 in RenderTiles::doRender(std::shared_ptrlok::Document, TileCombined&, PngCache&, ThreadPool&, bool, std::function<void (unsigned char*, int, int, unsigned long, unsigned long, int, int, LibreOfficeKitTileMode)> const&, std::function<void (char const*, unsigned long)> const&)
(document=std::shared_ptrlok::Document (use count 2, weak count 0) = {...}, tileCombined=..., pngCache=..., pngPool=..., combined=true, blendWatermark=..., outputMessage=...) at ./common/RenderTiles.hpp:523
#20 0x000000000056b33b in Document::renderTiles(TileCombined&, bool) (this=0x6f91010, tileCombined=..., combined=true) at kit/Kit.cpp:662
#21 0x000000000056ab7a in Document::renderCombinedTiles(StringVector const&) (this=0x6f91010, tokens=...) at kit/Kit.cpp:631
#22 0x0000000000575737 in Document::drainQueue(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) (this=0x6f91010) at kit/Kit.cpp:1429
#23 0x00000000005778b2 in KitSocketPoll::drainQueue(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) (this=0x1a83c50, now=...) at kit/Kit.cpp:1717
#24 0x0000000000577c01 in KitSocketPoll::kitPoll(int) (this=0x1a83c50, timeoutMicroS=0) at kit/Kit.cpp:1759
#25 0x00000000005548ae in pollCallback(void*, int) (pData=0x1a83c50, timeoutUs=0) at kit/Kit.cpp:1988
#26 0x00007fbed31aaed7 in SvpSalInstance::DoYield(bool, bool) (this=0x1ad1100, bWait=true, bHandleAllCurrentEvents=false) at vcl/headless/svpinst.cxx:492
#27 0x00007fbed2f55b59 in ImplYield(bool, bool) (i_bWait=true, i_bAllEvents=false) at vcl/source/app/svapp.cxx:445
#28 0x00007fbed2f55910 in Application::Yield() () at vcl/source/app/svapp.cxx:509
#29 0x00007fbed2f55899 in Application::Execute() () at vcl/source/app/svapp.cxx:426
#30 0x00007fbeda017e5d in desktop::Desktop::Main() (this=0x7ffc773dbc68) at desktop/source/app/app.cxx:1617
#31 0x00007fbed2f76ac4 in ImplSVMain() () at vcl/source/app/svmain.cxx:191
#32 0x00007fbed2f78379 in SVMain() () at vcl/source/app/svmain.cxx:225
#33 0x00007fbeda08af10 in soffice_main() () at desktop/source/app/sofficemain.cxx:115
#34 0x00007fbeda0e8a83 in lo_runLoop(_LibreOfficeKit*, int ()(void, int), void ()(void), void*)
(pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50) at desktop/source/lib/init.cxx:5909
#35 0x000000000055fce7 in lok::Office::runLoop(int ()(void, int), void ()(void), void*)
(this=0x6f7bdc0, pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:983
#36 0x000000000055a594 in lokit_main(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, bool, bool, bool, bool, unsigned long)
(childRoot="/home/tml/lo/online-co-6-4/jails/", jailId="HB3sTabU5lxIEOGW", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", noCapabilities=false, noSeccomp=false, queryVersion=false, displayVersion=true, numericIdentifier=2) at kit/Kit.cpp:2408
#37 0x0000000000534766 in createLibreOfficeKit(std::string const&, std::string const&, std::string const&, std::string const&, bool)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", queryVersion=false) at kit/ForKit.cpp:356
#38 0x0000000000535068 in forkLibreOfficeKit(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", limit=0) at kit/ForKit.cpp:406
#39 0x0000000000537ac2 in main(int, char**) (argc=19, argv=0x7ffc773e1c08) at kit/ForKit.cpp:669

#0 SfxLokHelper::notifyInvalidation(SfxViewShell const*, rtl::OString const&) (pThisView=0x6f1ac50, rPayload="38, 38, 745, 400")
at sfx2/source/view/lokhelper.cxx:490
#1 0x00007fbebcd1c948 in SwEditWin::LogicInvalidate(tools::Rectangle const*) (this=0x7245d20, pRectangle=0x7ffc773d4d60) at sw/source/uibase/docvw/edtwin.cxx:6357
#2 0x00007fbed248fc82 in vcl::Window::Invalidate(tools::Rectangle const&, InvalidateFlags) (this=0x7245d20, rRect=..., nFlags=InvalidateFlags::NONE)
at vcl/source/window/paint.cxx:1183
#3 0x00007fbebc8c6cd0 in SwViewShell::CheckInvalidForPaint(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:1702
#4 0x00007fbebc8c73c9 in SwViewShell::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7258f50, rRenderContext=..., rRect=...)
at sw/source/core/view/viewsh.cxx:1832
#5 0x00007fbebb90bd98 in SwCursorShell::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7258f50, rRenderContext=..., rRect=...)
at sw/source/core/crsr/crsrsh.cxx:1413
#6 0x00007fbebcd33462 in SwEditWin::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7245d20, rRenderContext=..., rRect=...)
at sw/source/uibase/docvw/edtwin2.cxx:441
#7 0x00007fbed248a788 in PaintHelper::DoPaint(vcl::Region const*) (this=0x7ffc773d5d10, pRegion=0x0) at vcl/source/window/paint.cxx:311
#8 0x00007fbed248c422 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x7245d20, pRegion=0x0, nPaintFlags=ImplPaintFlags::Erase)
at vcl/source/window/paint.cxx:615
#9 0x00007fbed248dc9b in vcl::Window::Update() (this=0x7245d20) at vcl/source/window/paint.cxx:1346
#10 0x00007fbebc8c405a in SwViewShell::VisPortChgd(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:1242
#11 0x00007fbebb90c131 in SwCursorShell::VisPortChgd(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/crsr/crsrsh.cxx:1459
#12 0x00007fbebc8c8571 in SwViewShell::PaintTile(VirtualDevice&, int, int, int, int, long, long)
(this=0x7258f50, rDevice=..., contextWidth=1536, contextHeight=512, tilePosX=0, tilePosY=0, tileWidth=11520, tileHeight=3840)
at sw/source/core/view/viewsh.cxx:1949
#13 0x00007fbebcfd461e in SwXTextDocument::paintTile(VirtualDevice&, int, int, int, int, long, long)
(this=0x706cb50, rDevice=..., nOutputWidth=1536, nOutputHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at sw/source/uibase/uno/unotxdoc.cxx:3149
#14 0x00007fbebcfd46c0 in non-virtual thunk to SwXTextDocument::paintTile(VirtualDevice&, int, int, int, int, long, long) ()
at /home/tml/lo/cp-6.4/instdir/program/../program/libswlo.so
#15 0x00007fbeda0ce6d9 in doc_paintTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int)
(pThis=0x7688960, pBuffer=0x8729310 "", nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at desktop/source/lib/init.cxx:3166
#16 0x00007fbeda0cf340 in doc_paintPartTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int, int)
(pThis=0x7688960, pBuffer=0x8729310 "", nPart=0, nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at desktop/source/lib/init.cxx:3296
#17 0x000000000055fa52 in lok::Document::paintPartTile(unsigned char*, int, int, int, int, int, int, int)
(this=0x767f340, pBuffer=0x8729310 "", nPart=0, nCanvasWidth=1536, nCanvasHeight=512, nTilePosX=0, nTilePosY=0, nTileWidth=11520, nTileHeight=3840)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:584
#18 0x000000000054da07 in RenderTiles::doRender(std::shared_ptrlok::Document, TileCombined&, PngCache&, ThreadPool&, bool, std::function<void (unsigned char*, int, int, unsigned long, unsigned long, int, int, LibreOfficeKitTileMode)> const&, std::function<void (char const*, unsigned long)> const&)
(document=std::shared_ptrlok::Document (use count 2, weak count 0) = {...}, tileCombined=..., pngCache=..., pngPool=..., combined=true, blendWatermark=..., outputMessage=...) at ./common/RenderTiles.hpp:523
#19 0x000000000056b33b in Document::renderTiles(TileCombined&, bool) (this=0x6f91010, tileCombined=..., combined=true) at kit/Kit.cpp:662
#20 0x000000000056ab7a in Document::renderCombinedTiles(StringVector const&) (this=0x6f91010, tokens=...) at kit/Kit.cpp:631
#21 0x0000000000575737 in Document::drainQueue(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) (this=0x6f91010) at kit/Kit.cpp:1429
#22 0x00000000005778b2 in KitSocketPoll::drainQueue(std::chrono::time_point<std::chrono::_V2::steady_clock, std::chrono::duration<long, std::ratio<1l, 1000000000l> > > const&) (this=0x1a83c50, now=...) at kit/Kit.cpp:1717
#23 0x0000000000577c01 in KitSocketPoll::kitPoll(int) (this=0x1a83c50, timeoutMicroS=0) at kit/Kit.cpp:1759
#24 0x00000000005548ae in pollCallback(void*, int) (pData=0x1a83c50, timeoutUs=0) at kit/Kit.cpp:1988
#25 0x00007fbed31aaed7 in SvpSalInstance::DoYield(bool, bool) (this=0x1ad1100, bWait=true, bHandleAllCurrentEvents=false) at vcl/headless/svpinst.cxx:492
#26 0x00007fbed2f55b59 in ImplYield(bool, bool) (i_bWait=true, i_bAllEvents=false) at vcl/source/app/svapp.cxx:445
#27 0x00007fbed2f55910 in Application::Yield() () at vcl/source/app/svapp.cxx:509
#28 0x00007fbed2f55899 in Application::Execute() () at vcl/source/app/svapp.cxx:426
#29 0x00007fbeda017e5d in desktop::Desktop::Main() (this=0x7ffc773dbc68) at desktop/source/app/app.cxx:1617
#30 0x00007fbed2f76ac4 in ImplSVMain() () at vcl/source/app/svmain.cxx:191
#31 0x00007fbed2f78379 in SVMain() () at vcl/source/app/svmain.cxx:225
#32 0x00007fbeda08af10 in soffice_main() () at desktop/source/app/sofficemain.cxx:115
#33 0x00007fbeda0e8a83 in lo_runLoop(_LibreOfficeKit*, int ()(void, int), void ()(void), void*)
(pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50) at desktop/source/lib/init.cxx:5909
#34 0x000000000055fce7 in lok::Office::runLoop(int ()(void, int), void ()(void), void*)
(this=0x6f7bdc0, pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:983
#35 0x000000000055a594 in lokit_main(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, bool, bool, bool, bool, unsigned long)
(childRoot="/home/tml/lo/online-co-6-4/jails/", jailId="HB3sTabU5lxIEOGW", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", noCapabilities=false, noSeccomp=false, queryVersion=false, displayVersion=true, numericIdentifier=2) at kit/Kit.cpp:2408
#36 0x0000000000534766 in createLibreOfficeKit(std::string const&, std::string const&, std::string const&, std::string const&, bool)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", queryVersion=false) at kit/ForKit.cpp:356
#37 0x0000000000535068 in forkLibreOfficeKit(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", limit=0) at kit/ForKit.cpp:406
#38 0x0000000000537ac2 in main(int, char**) (argc=19, argv=0x7ffc773e1c08) at kit/ForKit.cpp:669

#0 SfxLokHelper::notifyInvalidation(SfxViewShell const*, rtl::OString const&) (pThisView=0x6f1ac50, rPayload="1474, 1474, 9525, 651")
at sfx2/source/view/lokhelper.cxx:490
#1 0x00007fbebcd1c948 in SwEditWin::LogicInvalidate(tools::Rectangle const*) (this=0x7245d20, pRectangle=0x7ffc773d7cc0) at sw/source/uibase/docvw/edtwin.cxx:6357
#2 0x00007fbed248fc82 in vcl::Window::Invalidate(tools::Rectangle const&, InvalidateFlags) (this=0x7245d20, rRect=..., nFlags=InvalidateFlags::NONE)
at vcl/source/window/paint.cxx:1183
#3 0x00007fbebc8bf144 in SwViewShell::InvalidateWindows(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:565
#4 0x00007fbebc8c6b62 in SwViewShell::CheckInvalidForPaint(SwRect const&) (this=0x7258f50, rRect=SwRect = {...}) at sw/source/core/view/viewsh.cxx:1692
#5 0x00007fbebc8c73c9 in SwViewShell::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7258f50, rRenderContext=..., rRect=...)
at sw/source/core/view/viewsh.cxx:1832
#6 0x00007fbebb90bd98 in SwCursorShell::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7258f50, rRenderContext=..., rRect=...)
at sw/source/core/crsr/crsrsh.cxx:1413
#7 0x00007fbebcd33462 in SwEditWin::Paint(OutputDevice&, tools::Rectangle const&) (this=0x7245d20, rRenderContext=..., rRect=...)
at sw/source/uibase/docvw/edtwin2.cxx:441
#8 0x00007fbed248a788 in PaintHelper::DoPaint(vcl::Region const*) (this=0x7ffc773d8d00, pRegion=0x0) at vcl/source/window/paint.cxx:311
#9 0x00007fbed248c422 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags)
(this=0x7245d20, pRegion=0x0, nPaintFlags=(ImplPaintFlags::PaintAll | ImplPaintFlags::PaintChildren | ImplPaintFlags::Erase))
at vcl/source/window/paint.cxx:615
#10 0x00007fbed248bc84 in PaintHelper::~PaintHelper() (this=0x7ffc773d8f90) at vcl/source/window/paint.cxx:551
#11 0x00007fbed248c493 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x6f18300, pRegion=0x0, nPaintFlags=ImplPaintFlags::PaintChildren)
at vcl/source/window/paint.cxx:621
#12 0x00007fbed248bc84 in PaintHelper::~PaintHelper() (this=0x7ffc773d9220) at vcl/source/window/paint.cxx:551
#13 0x00007fbed248c493 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x6f18700, pRegion=0x0, nPaintFlags=ImplPaintFlags::PaintChildren)
at vcl/source/window/paint.cxx:621
#14 0x00007fbed248bc84 in PaintHelper::~PaintHelper() (this=0x7ffc773d94b0) at vcl/source/window/paint.cxx:551
#15 0x00007fbed248c493 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x6ea3b30, pRegion=0x0, nPaintFlags=ImplPaintFlags::PaintChildren)
at vcl/source/window/paint.cxx:621
#16 0x00007fbed248bc84 in PaintHelper::~PaintHelper() (this=0x7ffc773d9740) at vcl/source/window/paint.cxx:551
#17 0x00007fbed248c493 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x6f23360, pRegion=0x0, nPaintFlags=ImplPaintFlags::PaintChildren)
at vcl/source/window/paint.cxx:621
#18 0x00007fbed248bc84 in PaintHelper::~PaintHelper() (this=0x7ffc773d99d0) at vcl/source/window/paint.cxx:551
#19 0x00007fbed248c493 in vcl::Window::ImplCallPaint(vcl::Region const*, ImplPaintFlags) (this=0x6e86e20, pRegion=0x0, nPaintFlags=ImplPaintFlags::PaintChildren)
at vcl/source/window/paint.cxx:621
#20 0x00007fbed248c5f6 in vcl::Window::ImplCallOverlapPaint() (this=0x6e86e20) at vcl/source/window/paint.cxx:639
#21 0x00007fbed248c7c5 in vcl::Window::ImplHandlePaintHdl(Timer*) (this=0x6e86e20) at vcl/source/window/paint.cxx:662
#22 0x00007fbed248c640 in vcl::Window::LinkStubImplHandlePaintHdl(void*, Timer*) (instance=0x6e86e20, data=0x6f1f630) at vcl/source/window/paint.cxx:643
#23 0x00007fbed2f7b648 in Link<Timer*, void>::Call(Timer*) const (this=0x6f1f650, data=0x6f1f630) at include/tools/link.hxx:112
#24 0x00007fbed2f7b495 in Timer::Invoke() (this=0x6f1f630) at vcl/source/app/timer.cxx:75
#25 0x00007fbed2f241a5 in Scheduler::ProcessTaskScheduling() () at vcl/source/app/scheduler.cxx:478
#26 0x00007fbed2f23409 in Scheduler::CallbackTaskScheduling() () at vcl/source/app/scheduler.cxx:287
#27 0x00007fbed31aba76 in SalTimer::CallCallback() (this=0x277cb90) at vcl/inc/saltimer.hxx:54
#28 0x00007fbed31a9d76 in SvpSalInstance::CheckTimeout(bool) (this=0x1ad1100, bExecuteTimers=true) at vcl/headless/svpinst.cxx:210
#29 0x00007fbed31aad4e in SvpSalInstance::DoYield(bool, bool) (this=0x1ad1100, bWait=true, bHandleAllCurrentEvents=false) at vcl/headless/svpinst.cxx:456
#30 0x00007fbed2f55b59 in ImplYield(bool, bool) (i_bWait=true, i_bAllEvents=false) at vcl/source/app/svapp.cxx:445
#31 0x00007fbed2f55910 in Application::Yield() () at vcl/source/app/svapp.cxx:509
#32 0x00007fbed2f55899 in Application::Execute() () at vcl/source/app/svapp.cxx:426
#33 0x00007fbeda017e5d in desktop::Desktop::Main() (this=0x7ffc773dbc68) at desktop/source/app/app.cxx:1617
#34 0x00007fbed2f76ac4 in ImplSVMain() () at vcl/source/app/svmain.cxx:191
#35 0x00007fbed2f78379 in SVMain() () at vcl/source/app/svmain.cxx:225
#36 0x00007fbeda08af10 in soffice_main() () at desktop/source/app/sofficemain.cxx:115
#37 0x00007fbeda0e8a83 in lo_runLoop(_LibreOfficeKit*, int ()(void, int), void ()(void), void*)
(pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50) at desktop/source/lib/init.cxx:5909
#38 0x000000000055fce7 in lok::Office::runLoop(int ()(void, int), void ()(void), void*)
(this=0x6f7bdc0, pPollCallback=0x554880 <pollCallback(void*, int)>, pWakeCallback=0x5548b1 <wakeCallback(void*)>, pData=0x1a83c50)
at /home/tml/lo/cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:983
#39 0x000000000055a594 in lokit_main(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, bool, bool, bool, bool, unsigned long)
(childRoot="/home/tml/lo/online-co-6-4/jails/", jailId="HB3sTabU5lxIEOGW", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", noCapabilities=false, noSeccomp=false, queryVersion=false, displayVersion=true, numericIdentifier=2) at kit/Kit.cpp:2408
#40 0x0000000000534766 in createLibreOfficeKit(std::string const&, std::string const&, std::string const&, std::string const&, bool)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", queryVersion=false) at kit/ForKit.cpp:356
#41 0x0000000000535068 in forkLibreOfficeKit(std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, std::__cxx11::basic_string<char, std::char_traits, std::allocator > const&, int)
(childRoot="/home/tml/lo/online-co-6-4/jails/", sysTemplate="/home/tml/lo/online-co-6-4/systemplate", loTemplate="/home/tml/lo/cp-6.4/instdir", loSubPath="lo", limit=0) at kit/ForKit.cpp:406
#42 0x0000000000537ac2 in main(int, char**) (argc=19, argv=0x7ffc773e1c08) at kit/ForKit.cpp:669

[tml1024]

I tried to add a stopgap measure just for the iOS app by adding a - (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView method to DocumentViewController that would just do a [webView reload] but that doesn't work; re-loading the loleaflet.html page would need to be done in a much more complicated fashion. Plus, it is no real fix anyway. We really need to fix this in core or the C++ parts of online, so that the loop that shows up for a "make run" gets fixed.

[tml1024]

This trivial patch seems to help for the "make run" case, but sadly not for the iOS app.

diff --git a/vcl/source/window/paint.cxx b/vcl/source/window/paint.cxx
index 42a3139b47a9..c94c367ffcaf 100644
--- a/vcl/source/window/paint.cxx
+++ b/vcl/source/window/paint.cxx
@@ -642,6 +642,9 @@ void Window::ImplCallOverlapPaint()
 
 IMPL_LINK_NOARG(Window, ImplHandlePaintHdl, Timer *, void)
 {
+    if (comphelper::LibreOfficeKit::isActive())
+        return;
+
     comphelper::ProfileZone aZone("VCL idle re-paint");
 
     // save paint events until layout is done
@@ -660,9 +663,6 @@ IMPL_LINK_NOARG(Window, ImplHandlePaintHdl, Timer *, void)
     else if ( mpWindowImpl->mbReallyVisible )
     {
         ImplCallOverlapPaint();
-        if (comphelper::LibreOfficeKit::isActive() &&
-            mpWindowImpl->mpFrameData->maPaintIdle.IsActive())
-            mpWindowImpl->mpFrameData->maPaintIdle.Stop();
     }
 }
 

[tml1024]

In the iOS app, after a while, even if I don't even click the blue round make-editable button, I start seeing lots of this:

2020-10-27 14:37:21.279082 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=833| TileCache.cpp:196
2020-10-27 14:37:21.279467 [ docbroker_001 ] DBG  STATISTICS: tile 833 internal roundtrip 28 ms.| TileCache.cpp:243
2020-10-27 14:37:21.280190 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=834| DocumentBroker.cpp:2060
2020-10-27 14:37:21.280263 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=834| TileCache.cpp:196
2020-10-27 14:37:21.280409 [ docbroker_001 ] DBG  STATISTICS: tile 834 internal roundtrip 29 ms.| TileCache.cpp:243
2020-10-27 14:37:21.285190 [ lokit_runloop ] DBG  paintPartTile at (0, 7680), (15360, 3840)  rendered in 4.194 ms (250.018 MP/s).| RenderTiles.hpp:533
2020-10-27 14:37:21.286605 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=835| DocumentBroker.cpp:2060
2020-10-27 14:37:21.286674 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=835| TileCache.cpp:196
2020-10-27 14:37:21.286784 [ docbroker_001 ] DBG  STATISTICS: tile 835 internal roundtrip 35 ms.| TileCache.cpp:243
2020-10-27 14:37:21.287569 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=836| DocumentBroker.cpp:2060
2020-10-27 14:37:21.287639 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=836| TileCache.cpp:196
2020-10-27 14:37:21.287739 [ docbroker_001 ] DBG  STATISTICS: tile 836 internal roundtrip 36 ms.| TileCache.cpp:243
2020-10-27 14:37:21.289221 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=837| DocumentBroker.cpp:2060
2020-10-27 14:37:21.289296 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=837| TileCache.cpp:196
2020-10-27 14:37:21.289423 [ docbroker_001 ] DBG  STATISTICS: tile 837 internal roundtrip 38 ms.| TileCache.cpp:243
2020-10-27 14:37:21.290659 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=838| DocumentBroker.cpp:2060
2020-10-27 14:37:21.290733 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=838| TileCache.cpp:196
2020-10-27 14:37:21.290984 [ docbroker_001 ] DBG  STATISTICS: tile 838 internal roundtrip 39 ms.| TileCache.cpp:243
2020-10-27 14:37:21.336121 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,0,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336164 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,3840,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336177 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,7680,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336160 [ lokit_runloop ] DBG  child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0,3840,7680,11520,0,3840,7680,11520,0,3840,7680,11520 tileposy=0,0,0,0,3840,3840,3840,3840,7680,7680,7680,7680 imgsize=0,0,0,0,0,0,0,0,0,0,0,0 tilewidth=3840 tileheight=3840 ver=839,840,841,842,843,844,845,846,847,848,849,850 oldwid=0,0,0,0,0,0,0,0,0,0,0,0 wid=0,0,0,0,0,0,0,0,0,0,0,0 | Kit.cpp:1860
2020-10-27 14:37:21.336192 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,11520,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336204 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,0,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336216 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,3840,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336343 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,7680,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336361 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,11520,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336373 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,0,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336389 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,3840,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336404 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,7680,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.336418 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,11520,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.344371 [ lokit_runloop ] DBG  paintPartTile at (0, 0), (15360, 7680)  rendered in 7.301 ms (287.242 MP/s).| RenderTiles.hpp:533
2020-10-27 14:37:21.346280 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=839| DocumentBroker.cpp:2060
2020-10-27 14:37:21.346372 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=839| TileCache.cpp:196
2020-10-27 14:37:21.346483 [ docbroker_001 ] DBG  STATISTICS: tile 839 internal roundtrip 10 ms.| TileCache.cpp:243
2020-10-27 14:37:21.348316 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=840| DocumentBroker.cpp:2060
2020-10-27 14:37:21.348401 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=840| TileCache.cpp:196
2020-10-27 14:37:21.348526 [ docbroker_001 ] DBG  STATISTICS: tile 840 internal roundtrip 12 ms.| TileCache.cpp:243
2020-10-27 14:37:21.351971 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=841| DocumentBroker.cpp:2060
2020-10-27 14:37:21.352094 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=841| TileCache.cpp:196
2020-10-27 14:37:21.352208 [ docbroker_001 ] DBG  STATISTICS: tile 841 internal roundtrip 16 ms.| TileCache.cpp:243
2020-10-27 14:37:21.360346 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=842| DocumentBroker.cpp:2060
2020-10-27 14:37:21.360462 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=842| TileCache.cpp:196
2020-10-27 14:37:21.360659 [ docbroker_001 ] DBG  STATISTICS: tile 842 internal roundtrip 24 ms.| TileCache.cpp:243
2020-10-27 14:37:21.364260 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=843| DocumentBroker.cpp:2060
2020-10-27 14:37:21.364361 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=843| TileCache.cpp:196
2020-10-27 14:37:21.364480 [ docbroker_001 ] DBG  STATISTICS: tile 843 internal roundtrip 28 ms.| TileCache.cpp:243
2020-10-27 14:37:21.367613 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=844| DocumentBroker.cpp:2060
2020-10-27 14:37:21.367703 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=844| TileCache.cpp:196
2020-10-27 14:37:21.367813 [ docbroker_001 ] DBG  STATISTICS: tile 844 internal roundtrip 31 ms.| TileCache.cpp:243
2020-10-27 14:37:21.370651 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=845| DocumentBroker.cpp:2060
2020-10-27 14:37:21.370736 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=845| TileCache.cpp:196
2020-10-27 14:37:21.370842 [ docbroker_001 ] DBG  STATISTICS: tile 845 internal roundtrip 34 ms.| TileCache.cpp:243
2020-10-27 14:37:21.372565 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=846| DocumentBroker.cpp:2060
2020-10-27 14:37:21.372681 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=846| TileCache.cpp:196
2020-10-27 14:37:21.372788 [ docbroker_001 ] DBG  STATISTICS: tile 846 internal roundtrip 36 ms.| TileCache.cpp:243
2020-10-27 14:37:21.377855 [ lokit_runloop ] DBG  paintPartTile at (0, 7680), (15360, 3840)  rendered in 4.754 ms (220.567 MP/s).| RenderTiles.hpp:533
2020-10-27 14:37:21.379162 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=847| DocumentBroker.cpp:2060
2020-10-27 14:37:21.379239 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=847| TileCache.cpp:196
2020-10-27 14:37:21.379345 [ docbroker_001 ] DBG  STATISTICS: tile 847 internal roundtrip 43 ms.| TileCache.cpp:243
2020-10-27 14:37:21.381627 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=848| DocumentBroker.cpp:2060
2020-10-27 14:37:21.381725 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=848| TileCache.cpp:196
2020-10-27 14:37:21.381923 [ docbroker_001 ] DBG  STATISTICS: tile 848 internal roundtrip 45 ms.| TileCache.cpp:243
2020-10-27 14:37:21.383899 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=849| DocumentBroker.cpp:2060
2020-10-27 14:37:21.383973 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=849| TileCache.cpp:196
2020-10-27 14:37:21.384132 [ docbroker_001 ] DBG  STATISTICS: tile 849 internal roundtrip 48 ms.| TileCache.cpp:243
2020-10-27 14:37:21.385202 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=850| DocumentBroker.cpp:2060
2020-10-27 14:37:21.385418 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=850| TileCache.cpp:196
2020-10-27 14:37:21.385536 [ docbroker_001 ] DBG  STATISTICS: tile 850 internal roundtrip 49 ms.| TileCache.cpp:243
2020-10-27 14:37:21.426350 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,0,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426392 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,3840,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426405 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,7680,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426392 [ lokit_runloop ] DBG  child_ws: recv [tilecombine nviewid=0 part=0 width=512 height=512 tileposx=0,3840,7680,11520,0,3840,7680,11520,0,3840,7680,11520 tileposy=0,0,0,0,3840,3840,3840,3840,7680,7680,7680,7680 imgsize=0,0,0,0,0,0,0,0,0,0,0,0 tilewidth=3840 tileheight=3840 ver=851,852,853,854,855,856,857,858,859,860,861,862 oldwid=0,0,0,0,0,0,0,0,0,0,0,0 wid=0,0,0,0,0,0,0,0,0,0,0,0 | Kit.cpp:1860
2020-10-27 14:37:21.426418 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,11520,0) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426437 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,0,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426449 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,3840,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426465 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,7680,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426477 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,11520,3840) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426489 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,0,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426501 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,3840,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426514 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,7680,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.426528 [ docbroker_001 ] DBG  Subscribing ToClient-001 to tile (0,0,11520,7680) which has 0 subscribers already.| TileCache.cpp:437
2020-10-27 14:37:21.434641 [ lokit_runloop ] DBG  paintPartTile at (0, 0), (15360, 7680)  rendered in 7.298 ms (287.36 MP/s).| RenderTiles.hpp:533
2020-10-27 14:37:21.436330 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=851| DocumentBroker.cpp:2060
2020-10-27 14:37:21.436420 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=851| TileCache.cpp:196
2020-10-27 14:37:21.436541 [ docbroker_001 ] DBG  STATISTICS: tile 851 internal roundtrip 10 ms.| TileCache.cpp:243
2020-10-27 14:37:21.437558 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=852| DocumentBroker.cpp:2060
2020-10-27 14:37:21.437788 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=852| TileCache.cpp:196
2020-10-27 14:37:21.437924 [ docbroker_001 ] DBG  STATISTICS: tile 852 internal roundtrip 11 ms.| TileCache.cpp:243
2020-10-27 14:37:21.440071 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=853| DocumentBroker.cpp:2060
2020-10-27 14:37:21.440156 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=853| TileCache.cpp:196
2020-10-27 14:37:21.440304 [ docbroker_001 ] DBG  STATISTICS: tile 853 internal roundtrip 14 ms.| TileCache.cpp:243
2020-10-27 14:37:21.441508 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=854| DocumentBroker.cpp:2060
2020-10-27 14:37:21.441688 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=0 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=854| TileCache.cpp:196
2020-10-27 14:37:21.441859 [ docbroker_001 ] DBG  STATISTICS: tile 854 internal roundtrip 15 ms.| TileCache.cpp:243
2020-10-27 14:37:21.443053 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=855| DocumentBroker.cpp:2060
2020-10-27 14:37:21.443137 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=855| TileCache.cpp:196
2020-10-27 14:37:21.443251 [ docbroker_001 ] DBG  STATISTICS: tile 855 internal roundtrip 17 ms.| TileCache.cpp:243
2020-10-27 14:37:21.446811 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=856| DocumentBroker.cpp:2060
2020-10-27 14:37:21.446910 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=856| TileCache.cpp:196
2020-10-27 14:37:21.447024 [ docbroker_001 ] DBG  STATISTICS: tile 856 internal roundtrip 20 ms.| TileCache.cpp:243
2020-10-27 14:37:21.447782 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=857| DocumentBroker.cpp:2060
2020-10-27 14:37:21.447899 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=857| TileCache.cpp:196
2020-10-27 14:37:21.448022 [ docbroker_001 ] DBG  STATISTICS: tile 857 internal roundtrip 21 ms.| TileCache.cpp:243
2020-10-27 14:37:21.448867 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=858| DocumentBroker.cpp:2060
2020-10-27 14:37:21.448981 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=3840 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=858| TileCache.cpp:196
2020-10-27 14:37:21.449102 [ docbroker_001 ] DBG  STATISTICS: tile 858 internal roundtrip 22 ms.| TileCache.cpp:243
2020-10-27 14:37:21.453769 [ lokit_runloop ] DBG  paintPartTile at (0, 7680), (15360, 3840)  rendered in 3.96 ms (264.792 MP/s).| RenderTiles.hpp:533
2020-10-27 14:37:21.455027 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=859| DocumentBroker.cpp:2060
2020-10-27 14:37:21.455099 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=0 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=859| TileCache.cpp:196
2020-10-27 14:37:21.455203 [ docbroker_001 ] DBG  STATISTICS: tile 859 internal roundtrip 28 ms.| TileCache.cpp:243
2020-10-27 14:37:21.459490 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=860| DocumentBroker.cpp:2060
2020-10-27 14:37:21.459576 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=3840 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=860| TileCache.cpp:196
2020-10-27 14:37:21.459686 [ docbroker_001 ] DBG  STATISTICS: tile 860 internal roundtrip 33 ms.| TileCache.cpp:243
2020-10-27 14:37:21.460833 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=861| DocumentBroker.cpp:2060
2020-10-27 14:37:21.460907 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=7680 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=861| TileCache.cpp:196
2020-10-27 14:37:21.461011 [ docbroker_001 ] DBG  STATISTICS: tile 861 internal roundtrip 34 ms.| TileCache.cpp:243
2020-10-27 14:37:21.462323 [ docbroker_001 ] DBG  Handling tile: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=862| DocumentBroker.cpp:2060
2020-10-27 14:37:21.462401 [ docbroker_001 ] DBG  Sending tile message to 1 subscribers: tile: nviewid=0 part=0 width=512 height=512 tileposx=11520 tileposy=7680 tilewidth=3840 tileheight=3840 oldwid=0 wid=0 ver=862| TileCache.cpp:196

The call stack, with a breakpoint in paintTileIOS in desktop/source/lib/init.cxx, is:

#0	0x00000001026ebc0c in paintTileIOS [inlined] at /Volumes/TML13/lo/ios-optimised-cp-6.4/desktop/source/lib/init.cxx:2164
#1	0x00000001026ebbc4 in doc_paintTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int) at /Volumes/TML13/lo/ios-optimised-cp-6.4/desktop/source/lib/init.cxx:3150
#2	0x00000001026ec1d0 in doc_paintPartTile(_LibreOfficeKitDocument*, unsigned char*, int, int, int, int, int, int, int) at /Volumes/TML13/lo/ios-optimised-cp-6.4/desktop/source/lib/init.cxx:3296
#3	0x000000010033a0e0 in lok::Document::paintPartTile(unsigned char*, int, int, int, int, int, int, int) at /Volumes/TML13/lo/ios-optimised-cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:584
#4	0x0000000100337e60 in RenderTiles::doRender(std::__1::shared_ptr<lok::Document>, TileCombined&, PngCache&, ThreadPool&, bool, std::__1::function<void (unsigned char*, int, int, unsigned long, unsigned long, int, int, LibreOfficeKitTileMode)> const&, std::__1::function<void (char const*, unsigned long)> const&) at /Volumes/TML13/lo/online-ios-device/common/RenderTiles.hpp:523
#5	0x000000010034a20c in Document::renderTiles(TileCombined&, bool) at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:662
#6	0x0000000100348524 in Document::renderCombinedTiles(StringVector const&) at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:631
#7	0x0000000100346df8 in Document::drainQueue(std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > > const&) at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:1429
#8	0x0000000100346100 in KitSocketPoll::drainQueue(std::__1::chrono::time_point<std::__1::chrono::steady_clock, std::__1::chrono::duration<long long, std::__1::ratio<1l, 1000000000l> > > const&) at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:1717
#9	0x000000010033c174 in KitSocketPoll::kitPoll(int) at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:1759
#10	0x000000010033bb18 in pollCallback(void*, int) at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:2006
#11	0x0000000103ffd640 in AquaSalInstance::DoYield(bool, bool) at /Volumes/TML13/lo/ios-optimised-cp-6.4/vcl/headless/svpinst.cxx:492
#12	0x0000000103f691bc in ImplYield(bool, bool) [inlined] at /Volumes/TML13/lo/ios-optimised-cp-6.4/vcl/source/app/svapp.cxx:445
#13	0x0000000103f69188 in Application::Yield() [inlined] at /Volumes/TML13/lo/ios-optimised-cp-6.4/vcl/source/app/svapp.cxx:509
#14	0x0000000103f69188 in Application::Execute() at /Volumes/TML13/lo/ios-optimised-cp-6.4/vcl/source/app/svapp.cxx:426
#15	0x00000001026caefc in desktop::Desktop::Main() at /Volumes/TML13/lo/ios-optimised-cp-6.4/desktop/source/app/app.cxx:1617
#16	0x0000000103f6f4b0 in ImplSVMain() at /Volumes/TML13/lo/ios-optimised-cp-6.4/vcl/source/app/svmain.cxx:191
#17	0x0000000103f70854 in SVMain() at /Volumes/TML13/lo/ios-optimised-cp-6.4/vcl/source/app/svmain.cxx:225
#18	0x00000001026e4698 in soffice_main at /Volumes/TML13/lo/ios-optimised-cp-6.4/desktop/source/app/sofficemain.cxx:115
#19	0x00000001027051bc in lo_runLoop(_LibreOfficeKit*, int (*)(void*, int), void (*)(void*), void*) at /Volumes/TML13/lo/ios-optimised-cp-6.4/desktop/source/lib/init.cxx:5909
#20	0x000000010038c854 in lok::Office::runLoop(int (*)(void*, int), void (*)(void*), void*) at /Volumes/TML13/lo/ios-optimised-cp-6.4/include/LibreOfficeKit/LibreOfficeKit.hxx:983
#21	0x000000010038c7c0 in runKitLoopInAThread()::$_1::operator()() const at /Volumes/TML13/lo/online-ios-device/kit/Kit.cpp:2463
#22	0x000000010038c704 in decltype(std::__1::forward<runKitLoopInAThread()::$_1>(fp)()) std::__1::__invoke<runKitLoopInAThread()::$_1>(runKitLoopInAThread()::$_1&&) at /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/type_traits:3545
#23	0x000000010038c6a4 in void std::__1::__thread_execute<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, runKitLoopInAThread()::$_1>(std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, runKitLoopInAThread()::$_1>&, std::__1::__tuple_indices<>) at /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/thread:273
#24	0x000000010038c2ac in void* std::__1::__thread_proxy<std::__1::tuple<std::__1::unique_ptr<std::__1::__thread_struct, std::__1::default_delete<std::__1::__thread_struct> >, runKitLoopInAThread()::$_1> >(void*) at /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/thread:284
#25	0x00000001db285ca8 in _pthread_start ()

[tml1024]

... and after some 4300 pointless tiles painted, the WebContent process crashes.

[mmeeks]

I expect the leaflet view to borrow CPU when the document is idle to try to get tiles around the document so we're ready to scroll-down / left / right etc. which might be related (?) though 4300 tiles is rather a lot =)