| commit | 03c58c9dccde0b9d98962f34e6669a508c8d133a | [log] [tgz] |
|---|---|---|
| author | Cherry Zhang <cherryyz@google.com> | Wed Nov 13 21:01:01 2019 -0500 |
| committer | Cherry Zhang <cherryyz@google.com> | Fri Nov 15 02:31:52 2019 +0000 |
| tree | 8738d71ba2bc11ce86005e70bff33b66d30fb023 | |
| parent | 7719016ee297dd4960bb66ed265038f2d75b3c56 [diff] |
runtime: crash if a signal is received with bad G and no extra M When we receive a signal, if G is nil we call badsignal, which calls needm. When cgo is not used, there is no extra M, so needm will just hang. In this situation, even GOTRACEBACK=crash cannot get a stack trace, as we're in the signal handler and cannot receive another signal (SIGQUIT). Instead, just crash. For #35554. Updates #34391. Change-Id: I061ac43fc0ac480435c050083096d126b149d21f Reviewed-on: https://go-review.googlesource.com/c/go/+/206959 Run-TryBot: Cherry Zhang <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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