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Austin Clements 9483a0bc23 runtime: don't grow the stack on sigpanic if throwsplit
Currently, if a _SigPanic signal arrives in a throwsplit context,
nothing is stopping the runtime from injecting a call to sigpanic that
may attempt to grow the stack. This will fail and, in turn, mask the
real problem.

Fix this by checking for throwsplit in the signal handler itself
before injecting the sigpanic call.

Updates #21431, where this problem is likely masking the real problem.

Change-Id: I64b61ff08e8c4d6f6c0fb01315d7d5e66bf1d3e2
Reviewed-on: https://go-review.googlesource.com/87595
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
2018-01-23 19:50:18 +00:00
.github doc: add a link to the code of conduct 2017-11-13 16:48:04 +00:00
api doc, api: add type Srcset string change to go1.10 notes and API 2018-01-11 17:44:08 +00:00
doc spec: consistently use "defined type" and "type name" (cleanup) 2018-01-23 17:39:18 +00:00
lib/time lib/time: update tzdata to 2017c 2017-12-06 19:24:15 +00:00
misc misc,src: add support for specifying adb flags to the android harness 2018-01-20 21:13:30 +00:00
src runtime: don't grow the stack on sigpanic if throwsplit 2018-01-23 19:50:18 +00:00
test all: use Fatalf instead of Fatal if format is given 2018-01-10 01:35:45 +00:00
.gitattributes
.gitignore .gitignore: ignore src/cmd/dist/dist 2017-10-28 21:55:49 +00:00
AUTHORS A+C: update late Go 1.10 contributors 2018-01-06 04:52:00 +00:00
CONTRIBUTING.md .github: recommend 'go bug' when filing an issue 2017-07-24 17:18:34 +00:00
CONTRIBUTORS A+C: update late Go 1.10 contributors 2018-01-06 04:52:00 +00:00
favicon.ico website: recreate 16px and 32px favicon 2016-08-25 15:43:32 +00:00
LICENSE doc: revert copyright date to 2009 2016-06-01 22:40:04 +00:00
PATENTS
README.md readme: add attribution for the Gopher image 2017-02-03 19:39:41 +00:00
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