a1674f3ee3
I think there is a theoretical possibility of a mistake before this CL. pollCache.free would increment fdseq, but would not update atomicInfo. The epoll code could compare to fdseq before the increment, but suspend before calling setEventErr. The pollCache could get reallocated, and pollOpen could clear eventErr. Then the setEventErr could continue and set it again. Then pollOpen could call publishInfo. Avoid this rather remote possibility by calling publishInfo after incrementing fdseq. That ensures that delayed setEventErr will not modify the eventErr flag. Fixes #60133 Change-Id: I69e336535312544690821c9fd53f3023ff15b80c Reviewed-on: https://go-review.googlesource.com/c/go/+/495297 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@google.com> Run-TryBot: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> Auto-Submit: Ian Lance Taylor <iant@google.com> |
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