Mercurial > hg
view contrib/showstack.py @ 51365:ded1bad5653d stable
tests: fix nondeterministic test failure in test-contrib-perf.t
It turns out (not too shockingly!) the kernel sometimes has some work to do,
perhaps at the very least context-switching, so asserting the system time
is 0.000000 doesn't work.
author | Arseniy Alekseyev <aalekseyev@janestreet.com> |
---|---|
date | Mon, 08 Jan 2024 15:25:33 +0000 |
parents | 6000f5b25c9b |
children |
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# showstack.py - extension to dump a Python stack trace on signal # # binds to both SIGQUIT (Ctrl-\) and SIGINFO (Ctrl-T on BSDs) r"""dump stack trace when receiving SIGQUIT (Ctrl-\) or SIGINFO (Ctrl-T on BSDs) """ import signal import sys import traceback def sigshow(*args): sys.stderr.write("\n") traceback.print_stack(args[1], limit=10, file=sys.stderr) sys.stderr.write("----\n") def sigexit(*args): sigshow(*args) print('alarm!') sys.exit(1) def extsetup(ui): signal.signal(signal.SIGQUIT, sigshow) signal.signal(signal.SIGALRM, sigexit) try: signal.signal(signal.SIGINFO, sigshow) except AttributeError: pass