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| author | Ian Lance Taylor <iant@golang.org> | 2020-10-27 16:09:40 -0700 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2020-11-20 20:38:12 +0000 |
| commit | efd204ccf78e16ee6792079ba70456ed425cb9c3 (patch) | |
| tree | 1f37f9e107e7218377e72064d8e6fc2d3257603a /src/runtime/os_windows.go | |
| parent | 730d5f42f919f948ff2841581ecec6fe4b465aee (diff) | |
| download | go-efd204ccf78e16ee6792079ba70456ed425cb9c3.tar.gz go-efd204ccf78e16ee6792079ba70456ed425cb9c3.zip | |
[release-branch.go1.15] runtime: block signals in needm before allocating M
Otherwise, if a signal occurs just after we allocated the M,
we can deadlock if the signal handler needs to allocate an M
itself.
For #42207
Fixes #42636
Change-Id: I76f44547f419e8b1c14cbf49bf602c6e645d8c14
Reviewed-on: https://go-review.googlesource.com/c/go/+/265759
Trust: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Bryan C. Mills <bcmills@google.com>
(cherry picked from commit 368c40116434532dc0b53b72fa04788ca6742898)
Reviewed-on: https://go-review.googlesource.com/c/go/+/271847
Diffstat (limited to 'src/runtime/os_windows.go')
| -rw-r--r-- | src/runtime/os_windows.go | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/os_windows.go b/src/runtime/os_windows.go index 769197db46..81d9ccf8f0 100644 --- a/src/runtime/os_windows.go +++ b/src/runtime/os_windows.go @@ -830,7 +830,7 @@ func mpreinit(mp *m) { } //go:nosplit -func msigsave(mp *m) { +func sigsave(p *sigset) { } //go:nosplit |