Date: Tue, 28 Aug 2012 07:35:46 +0100 From: Matthew Seaman <matthew@FreeBSD.org> To: Guido Falsi <mad@madpilot.net> Cc: freebsd-fs@FreeBSD.org Subject: Re: ZFS snapshot Folder Disappearing Message-ID: <503C66C2.5010209@FreeBSD.org> In-Reply-To: <503C633B.2070508@madpilot.net> References: <CAG27QgQdnQftnuk3o1ehD1W=0_ABsfu1KOsjxY%2Bc8B6iasSMdQ@mail.gmail.com> <CAM-i3ihGpwYZcYWuwxu8qk-3yASKQUE0hCmd4Dx%2BbWOoO9Yeog@mail.gmail.com> <CAG27QgT=yEv-BGFaqA79Bz5g9LLhMQwJKcNTDOt-=yESD5jCUA@mail.gmail.com> <503C5F2A.701@FreeBSD.org> <503C633B.2070508@madpilot.net>
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This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig0D058A0B5A8D03E22B6715A5 Content-Type: text/plain; charset=ISO-8859-15 Content-Transfer-Encoding: quoted-printable On 28/08/2012 07:20, Guido Falsi wrote: >> >> There's a PR for this somewhere (not created by me), but I can't find = it >> in my records right now. >> >=20 > http://www.freebsd.org/cgi/query-pr.cgi?pr=3Dkern/156781 That's the one. > I got hit by this a few times too. Ti me it looks like it's easier to > get this problem on more low spec machines(low spec regarding ZFS, so > anything under 3-4 GiB ram is on the low side, for example). My machine has 8GB RAM which I wouldn't call low spec particularly. > Using nullfs across snapshots did trigger this easily. I did that to > have a nullfs mounted snapshot of the whole filesystem structure. I'm > using read only zfs clones for that now. Interesting. I do have certain ZFSes null-mounted into a jail. I wonder if that's a common factor? Cheers, Matthew --=20 Dr Matthew J Seaman MA, D.Phil. PGP: http://www.infracaninophile.co.uk/pgpkey --------------enig0D058A0B5A8D03E22B6715A5 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.16 (Darwin) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlA8ZsoACgkQ8Mjk52CukIx0TwCglYv9Kq5C++TXB7Ntrz5jaJHu fLEAnRH1smzDdgSGzREX3raFJu+99hsK =u7ZA -----END PGP SIGNATURE----- --------------enig0D058A0B5A8D03E22B6715A5--
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