First, you're free to not use buffered IO. Second, EIO on fsync or close for buf... | Hacker News

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loeg on Aug 25, 2024 | parent | context | favorite | on: Async hazard: MMAP is blocking IO

First, you're free to not use buffered IO. Second, EIO on fsync or close for buffered IO is still adjacent to the relevant file descriptor.

jcalvinowens on Aug 25, 2024 [–]

> adjacent to the relevant file descriptor.

So is SIGBUS: you get the address in the handler. You probably have a data structure associating the two things somewhere anyway, and if you don't you can look it up in /proc.

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