[QA] Help my CI job fails with exit status -11

[Antoine Musso]

Hello,

I recently had to investigate a CI failure that was quite mysterious. 
PHPUnit would suddenly abort with: exit status -11

That is a segfault which involves retrieving a core dump and investigate 
it with a debugger.

I wrote about my journey in a blog post which would be of interest for 
members of this list:

https://phabricator.wikimedia.org/J152


-- 
Antoine "hashar" Musso