718f553915
It turns out that there is a path that initializes netpoll and opens file descriptors before running the os/exec init function: on some systems, the uses of NewFile when setting os.Stdin and friends can initialize netpoll which can open file descriptors. This in itself is not a problem, but when we check whether the new files are open using os.NewFile, a side-effect is to put them into non-blocking mode. This can then break future uses of netpoll. Updates #35469 Fixes #35566 Change-Id: I1b2e2c943695d1c2d29496b050abbce9ee710a00 Reviewed-on: https://go-review.googlesource.com/c/go/+/207078 Reviewed-by: Bryan C. Mills <bcmills@google.com> |
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