sw_uiwriter hangs in testDateFormFieldCurrentDateInvalidation

[Jan-Marek Glogowski]

Am 14.07.19 um 13:28 schrieb Kaganski Mike:
> I see sw_uiwriter hanging locally in 
> testDateFormFieldCurrentDateInvalidation (added in commit 
> d0ff1090762ac61ce08f54bc76685232699d98a0), never returning from 
> Scheduler::ProcessEventsToIdle. Killing the test after some time 
> produces multiple lines in console:
> 
>> warn:vcl.schedule:5488:13820:vcl/source/app/svapp.cxx:470: ProcessEventsToIdle: 1000
>> warn:vcl.schedule:5488:13820:vcl/source/app/svapp.cxx:470: ProcessEventsToIdle: 2000
>> ...
>> warn:vcl.schedule:5488:13820:vcl/source/app/svapp.cxx:470: ProcessEventsToIdle: 845000
> 
> I believe that's the reason for massive number of aborted Windows 
> jenkins builds that lately affect our CI (just the last few are builds 
> #34586, #34587, #34588, #34589, #34590, #34591).

Just see the list in https://ci.libreoffice.org/job/gerrit_windows/

And https://gerrit.libreoffice.org/75463 was force-pushed after an Abort.

I know there are still problems with the Scheduler code on Windows, eventually
the AnyInput handling. Probably it's the same then
https://bugs.documentfoundation.org/show_bug.cgi?id=123583
My guess is LO is generating system events, so processing is always interrupted.

Also see https://gerrit.libreoffice.org/#/c/75568/

I can help debugging the general problem, but since I don't have Windows or a
Windows build, I can't do it myself.