RFR: 8274548: (fc) FileChannel gathering write fails with IOException "Invalid argument" on macOS 11.6

[Alan Bateman]

On Wed, 6 Oct 2021 00:00:00 GMT, Brian Burkhalter <bpb at openjdk.org> wrote:

> On macOS, handle the case where `writev()` is given an array of `struct iovec` the sum of whose `iov_len` fields overflows `INT_MAX`.

We really need someone from Apple here to tell us if this is a man page issue or a bug in macOS 11.6. If I read it correctly, the issue doesn't occur with 10.5.x and the best of macOS 12, is that correct? If we do need to put a workaround in for this then I think it will need an overhaul of IOUtil first. I'd prefer not have the iovec array be modified in two places.

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PR: https://git.openjdk.java.net/jdk/pull/5831