UITest_writerperfect_epubexport hang (only sometimes)

[Michael Stahl]

On 20.02.2018 18:41, Stephan Bergmann wrote:
> On 18.02.2018 02:08, Markus Mohrhard wrote:
>> For now I pushed a patch that will let the tests fail instead of being 
>> stuck.
> 
> <https://cgit.freedesktop.org/libreoffice/core/commit/?id=fb4d5885f3c8d00ae528ddf57b2abaa4aabfbcf3> 
> "uitest: add timeout for blocking actions", I assume.  Should we revert it?
> 
> For one, as Michael already responded, many builds (local, 
> Gerrit/Jenkins, other tinderboxes) now fail 
> UITest_writerperfect_epubexport with what looks like random "raise 
> DialogNotClosedException()".  Gut feeling is that it's way more than 
> used to fail UITest_writerperfect_epubexport with a deadlock.

in the one case i've debugged the exception (and also, assert about
disposed window during shutdown) was caused by a hang in the
SvpSalInstance::DoReleaseYield, with 2 threads blocked in poll.

hopefully https://gerrit.libreoffice.org/#/c/50237/ should fix it.