Dean Galvin 64ca6e3329 fix(libkernel): follow pollscan for a pipe whose other end is closed ...

FreeBSD's pollscan clears POLLOUT whenever POLLHUP is set, so a write end
whose read end is closed reports POLLHUP alone, with POLLIN and POLLRDNORM
when they were asked for; both host paths reported POLLOUT | POLLHUP.

POLLOUT on a read end now throws. FreeBSD opens both ends FREAD | FWRITE
and pipe_poll reports the read end writable, which a one-way host pipe
cannot back.

guest_poll drained 1 KiB from the full pipe before expecting POLLOUT, but
Linux reports it only once a whole 4 KiB page is free, so the test aborted
there. It now drains the pipe, which is writable on every host.

2026-10-13 13:37:28 +13:00

..

dev

fix(libkernel): follow pollscan for a pipe whose other end is closed

2026-10-13 13:37:28 +13:00

user

docs: replace COMPATIBILITY.md with a link to the blocker map

2026-10-12 21:01:37 +02:00