6fd467ee29
On Windows, there is currently a race between unminit closing the thread's handle and profileloop1 suspending the thread using its handle. If another handle reuses the same handle value, this can lead to unpredictable results. To fix this, we protect the thread handle with a lock and duplicate it under this lock in profileloop1 before using it. This is going to become a much bigger problem with non-cooperative preemption (#10958, #24543), which uses the same basic mechanism as profileloop1. Change-Id: I9d62b83051df8c03f3363344438e37781a69ce16 Reviewed-on: https://go-review.googlesource.com/c/go/+/207779 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Cherry Zhang <cherryyz@google.com> Reviewed-by: Alex Brainman <alex.brainman@gmail.com> |
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The Go Programming Language
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