Confuse about runtime.AddCleanup

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xie cui

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Aug 16, 2025, 12:21:45 PM Aug 16

to golang-nuts

in this cl https://go-review.googlesource.com/c/go/+/638557/12/src/net/fd_posix.go

In my understand, fd and pfd is pointer to same slot cell in gc, why runtime.AddCleanup can not accept runtime.AddCleanup(fd, func(fd){}, fd) as cleanup arg, in my mind, I think they are fd and pfd is same to gc collector.

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