From mboxrd@z Thu Jan 1 00:00:00 1970 From: Maciej Marcin Piechotka Subject: Re: kernel BUG at fs/btrfs/inode.c:2299 Date: Sat, 17 Sep 2011 20:30:21 +0200 Message-ID: <1316284222.3253.10.camel@picard> References: <1314582311.2724.4.camel@picard> <1316283907.3253.8.camel@picard> Reply-To: uzytkownik2@gmail.com Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-ripemd160"; protocol="application/pgp-signature"; boundary="=-yvSQA1WXNU6iwMIHQ5Gm" To: linux-btrfs@vger.kernel.org Return-path: In-Reply-To: <1316283907.3253.8.camel@picard> List-ID: --=-yvSQA1WXNU6iwMIHQ5Gm Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Sat, 2011-09-17 at 20:25 +0200, Maciej Marcin Piechotka wrote: > 1. Once the blank screen happened ot 23:00 UTC instead of 03:00 UTC > 2. I tried to disable the caches > 3. I tried to rsync via ext3 + btrfs-convert. I noticed something - in > old fs the df looked like: >=20 > Data: total=3D30.01GB, used=3D28.42GB > System, DUP: total=3D8.00MB, used=3D4.00KB > System: total=3D4.00MB, used=3D0.00 > Metadata, DUP: total=3D1.00GB, used=3D199.47MB > Metadata: total=3D8.00MB, used=3D0.00 >=20 > on new one (with ext3 image): > Data: total=3D33.33GB, used=3D20.52GB > System: total=3D32.00MB, used=3D4.00KB > Metadata: total=3D16.64GB, used=3D11.36GB >=20 > and without: > Data: total=3D33.33GB, used=3D20.04GB > System: total=3D32.00MB, used=3D4.00KB > Metadata: total=3D16.64GB, used=3D10.88GB >=20 > Given that lzo compression was used about 4 GB data difference was > expected (difference depending on mount options on rsynbc). However: >=20 > 1. What is DUP? > 2. Why metadata is so big on convertion from ext3 while data is small > (the sum is about right - 31GB vs 28.5GB)? >=20 That should be a) b) 4. I think it triggered a bug with data loss - the new data was not written to disk despite being visible from userspace after mount during the same mount. > Regards --=-yvSQA1WXNU6iwMIHQ5Gm Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (GNU/Linux) iQIcBAABAwAGBQJOdOc9AAoJEJIdee2Vr4aPNwoP/2GXAGAnKWMxV6TYnxAQZI1t enoImRaSdiB+w8/hIwOJOob7DPOnR7DapV9s4oIcqEqHI3vl+LTva92lghv1jdmI hEeRoU9vGsOpQekP5S+sY5rhSUDEecXGD3XOkOm7lBqI3GwjyoZwPsb7ShUNsurM cRQQjZC8YPs0Xs0C10teDwJPpZ2JmUrrqYwyKn/Kd4g+tkPR7xhmweuJvusaGM3w iShCyabdBEdDSh2tr14alPNEJFiwwPaMsrxbtte6GVBM+6hPqDgAe2rxqUAmPk5f AM+lhxn649o7nSeyRFiRzfMVF2Y0Gr4Lg5h7yjf2B8Z6atwhUWs09k1p6KdQJ0T2 ewkPH+3tP+C+plcgTuZfd+u29rY/dm+QzJycmzHozPnS1lgZT64oQNgJjhwkNeBO datYkCiKq44Jb7CoUwvkTL6Vua03+uTOPAnnfBeYZfTIavfG4pu/vCt+oOf2RlwG +4ScG21PENJfP2BNDrj1fa1gE4W87MMAGQG7NjaiabN3bhMmcg+jImoxiU40dWrL wDDsEMyin49HxciQXkFrTPgBZqdCePX/kzcDUj9YKgH4L/KW0XKrFW6nzUFB6kWo 3hcVk3/10FFxuFYPAuuGlQkgvnmpZbiCjPSGSIveRHUver2nT8iBJ8dA3wUq7ooO 5IWNZ7XXFj2kyb5fwT4t =FWll -----END PGP SIGNATURE----- --=-yvSQA1WXNU6iwMIHQ5Gm--