Enable faulthandler for distributed tests. (#54531)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/54531
Enabling faulthandler will intercept signals like SIGSEGV, SIGFPE,
SIGABRT, SIGBUS and SIGKILL and dump the entire python traceback before the
process goes down.
This can help us in debugging flaky tests where a process crashes and we need
to debug what happened.
ghstack-source-id: 125045894
Test Plan:
1) Tested locally to see traceback is produced.
2) waitforbuildbot
Reviewed By: rohan-varma
Differential Revision: D27271048
fbshipit-source-id: ca12125a9da6cdfc7bac5619ad1c7e116666014b
