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Currently, when a process times out, it is terminated by sending it the SIGTERM signal. Sending SIGBART instead allows the operating system to generate a core file that can be investigated later using post-mortem debuggers such as llnode or mdb_v8. This can be very useful when investigating flaky tests that time out, since in that case the failure is difficult to reproduce, and being able to look at a core file makes a big difference. With these changes, passing the --abort-on-timeout command line option to tools/test.py now sends SIGABRT to processes timing out on all platforms but Windows. PR-URL: https://github.com/nodejs/node/pull/11086 Ref: https://github.com/nodejs/node/issues/11026 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Gibson Fahnestock <gibfahn@gmail.com> Reviewed-By: Sakthipriyan Vairamani <thechargingvolcano@gmail.com> Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com> Reviewed-By: Anna Henningsen <anna@addaleax.net>