[Bug 276050] pijul clone on ZFS (Error: No error: 0 (os error 0))

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=276050

Mark Johnston <markj@FreeBSD.org> changed:

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--- Comment #8 from Mark Johnston <markj@FreeBSD.org> ---
(In reply to Mike from comment #7)
Well, clearly there is a bug in pijul, since it says "No error" but exits
anyway.

If I run the example under truss, I see:

posix_fallocate(0xb,0x0,0x300000)                ERR#22 'Invalid argument'

and indeed, ZFS does not implement fallocate on FreeBSD.  There is a Linux
implementation, but FreeBSD has ".vop_allocate = VOP_EINVAL".

Assuming that this is the root cause of the problem, either pijul needs to
tolerate such errors from posix_fallocate() if possible, or OpenZFS needs to
implement fallocate on FreeBSD.

cc'ed the devel/pijul maintainer in the hopes that this can be worked around
somehow. :)

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