Frequent recent killing of runaway CppunitTest_sw_layoutwriter on Jenkins (was: ESC meeting minutes: 2022-04-14)

[Stephan Bergmann]

On 26/04/2022 21:14, Caolán McNamara wrote:
> On Tue, 2022-04-26 at 17:46 +0200, Stephan Bergmann wrote:
>> and I have some findings in the comment at
>> <
>> https://gerrit.libreoffice.org/c/core/+/130493/7#message-e08f298e02448
>> 997aec8c89adf128cfe5e0efae5>
>> "add a layout test to exercise UXTSOREL".
> 
> lets see if https://gerrit.libreoffice.org/c/core/+/133460 works to
> resolve this

To conclude:  My hypothesis is that the test would always have run to 
completion, but just depending on which font happened to get substituted 
for the requested Palatino Linotype on a given machine, that could have 
taken obscenely long, esp. in --enable-dbgutil builds.

That would explain why some "Gerrit Linux clang/dbgutil" and "UBSAN 
Linux Build" builds succeeded and others failed, even on the same 
machine (as some happened to start the given test early enough so that 
its long but finite run time overlapped with enough other build output 
so as not to let the timeout killer kick in), and why this seemingly 
never was an issue with non-debug "Gerrit Linux gcc/release" builds 
(where the given test would always have succeeded quickly enough).

The take-away probably is that we should make sure to only use fonts in 
our `make check` tests that are covered by --with-fonts.