7e97e4e8cc
The runtime support for syscall.AllThreadsSyscall() functions had some corner case deadlock issues when signal handling was in use. This was observed in at least 3 build test failures on ppc64 and amd64 architecture CGO_ENABLED=0 builds over the last few months. The fixes involve more controlled handling of signals while the AllThreads mechanism is being executed. Further details are discussed in bug #44193. The all-threads syscall support is new in go1.16, so earlier releases are not affected by this bug. Fixes #44193 Change-Id: I01ba8508a6e1bb2d872751f50da86dd07911a41d Reviewed-on: https://go-review.googlesource.com/c/go/+/305149 Reviewed-by: Michael Pratt <mpratt@google.com> Trust: Michael Pratt <mpratt@google.com> Trust: Ian Lance Taylor <iant@golang.org> Run-TryBot: Michael Pratt <mpratt@google.com> TryBot-Result: Go Bot <gobot@golang.org> |
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