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Date:      Fri, 6 Feb 2026 19:57:07 -0800
From:      Mark Millard <marklmi@yahoo.com>
To:        freebsd-stable@freebsd.org
Subject:   FYI: posix_fallocate, stable/15, releng15.0, and a gcc* cc1plus: some reported issues
Message-ID:  <62e216ed-ffd1-4545-82b1-1f71171b532d@yahoo.com>

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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123366#c27

reports that for FreeBSD 15:

) posix_fallocate can and does return EOPNOTSUPP, at least with zfs involved

) the posix_fallocate man page does not document EOPNOTSUPP (not MFC'd?
not in a stable/15 that I checked as well)

) there is at least 1 gcc* for which its cc1plus can apparently get
SIGSEGV as a consequence

-- 
===
Mark Millard
marklmi at yahoo.com



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