On Tue, Jan 28, 2020 at 5:29 PM Benjamin Morel firstname.lastname@example.org>
> Hi internals,
> I'm encountering a SIGSEGV in PHP-FPM on PHP 7.4.2 in a Symfony app. The
> bug seems to happen during the rendering of a Twig template; this makes it
> hard for me to pinpoint the code that triggers the segfault.
> Could you please tell me what the procedure to collect information is, so
> that I can file a useful bug report?
As the first step, I would always suggest to reproduce this issue with the
CLI binary (this includes the builtin server under -S localhost:8000 -t
public). That way you don't have to deal with multi-process FPM.
Once that is done, the easiest way to get some useful debugging information
is to run PHP under valgrind, this is done using "USE_ZEND_ALLOC=0 valgrind