[dev.fuzz] internal/fuzz: improve handling of worker termination by signal

With this change, we'll no longer silently ignore terminations by
SIGKILL. We use SIGKILL to terminate unresponsive workers, but it can
also be delivered by the OOM killer.

When a worker is terminated by a signal not apparently due to a crash
or interruption (like SIGKILL or SIGHUP, as opposed to SIGSEGV), we'll
log a message, but we won't record a crash, since any given input is
not likely to reproduce this termination.

Fixes golang/go#46576

Change-Id: I6ef18a7cf5a457c7b9bc44cf5416378271216bfd
Reviewed-on: https://go-review.googlesource.com/c/go/+/333190
Trust: Jay Conrod <jayconrod@google.com>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Jay Conrod <jayconrod@google.com>
Reviewed-by: Katie Hockman <katie@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
5 files changed
tree: a067d2d2baf90ffea921a6cd3eacdee12e40dae0
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. codereview.cfg
  12. CONTRIBUTING.md
  13. CONTRIBUTORS
  14. LICENSE
  15. PATENTS
  16. README.md
  17. SECURITY.md
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