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

[Stephan Bergmann]

On 19/04/2022 11:17, Stephan Bergmann wrote:
> On 4/14/22 16:29, Stephan Bergmann wrote:
>> * Jenkins / CI update (Cloph)
> [...]
>>       30 Killed by the kill-wrapper gerrit_linux_clang_dbgutil
>>          + quite high, but may be just bad luck this week
> 
> Starting on 2022-04-10, I saw so far five "Gerrit Linux clang/dbgutil" 
> master builds and one "UBSAN Linux Build" that all got killed due to a 
> CppunitTest_sw_layoutwriter that is apparently either live-locked or 
> excessively long-running, in a way I had not seen before.

Following the recent discussion on IRC,

> <vmiklos> but it's not helpful that i haven't seen those hangs locally so far.
> <sberg> yeah, it's just Jenkins that keeps failing
> <caolanm> sberg, maybe adding "fc-list" to the timeout killer would at least give a list of the system fonts installed which might be useful to reproduce it locally

I temporarily patched the ~tdf/lode environments on tb75/76/79 (i.e., 
the subset of known-affected machines that I can easily reach) now with

> diff --git a/bin/tree-info b/bin/tree-info
> index e24bdea625ac..9d7343a6a293 100755
> --- a/bin/tree-info
> +++ b/bin/tree-info
> @@ -36,3 +36,6 @@ for my $pid (@pids) {
>      print("\n$cmd:\n");
>      system($cmd);
>  }
> +$cmd = "fc-list";
> +print("\n$cmd:\n");
> +system($cmd);