x/sys/unix: unrecognized failures

[gopherbot]

#!watchflakes
default <- pkg == "golang.org/x/sys/unix" && test == ""

Issue created automatically to collect these failures.

Example (log):

signal: segmentation fault (core dumped)

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
default <- pkg == "golang.org/x/sys/unix" && test == ""

2023-11-13 16:23 linux-loong64-3a5000 sys@11eadc05 go@e1dc209b x/sys/unix (log)

signal: segmentation fault (core dumped)

— watchflakes

[bcmills]

Duplicate of #64134