Date: Tue, 12 Apr 2005 07:41:17 -0700 From: Kris Kennaway <kris@obsecurity.org> To: Don Lewis <truckman@FreeBSD.org> Cc: kris@obsecurity.org Subject: Re: Softupdates not preventing lengthy fsck Message-ID: <20050412144116.GA39174@xor.obsecurity.org> In-Reply-To: <200504121201.j3CC1nZ1035643@gw.catspoiler.org> References: <20050412035111.GA31366@xor.obsecurity.org> <200504121201.j3CC1nZ1035643@gw.catspoiler.org>
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--envbJBWh7q8WU6mo Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Apr 12, 2005 at 05:01:49AM -0700, Don Lewis wrote: > On 11 Apr, Kris Kennaway wrote: > > On Mon, Apr 11, 2005 at 06:43:17PM -0700, Don Lewis wrote: > >> On 11 Apr, Kris Kennaway wrote: > >> > I'm seeing the following problem: on 6.0 machines which have had a l= ot > >> > of FS activity in the past but are currently quiet, an unclean reboot > >> > will require an hour or more of fscking and will end up clearing > >> > thousands of inodes: > >> >=20 > >> > [...] > >> > /dev/da0s1e: UNREF FILE I=3D269731 OWNER=3Droot MODE=3D100644 > >> > /dev/da0s1e: SIZE=3D8555 MTIME=3DApr 18 02:29 2002 (CLEARED) > >>=20 > >> > /dev/da0s1e: UNREF FILE I=3D269741 OWNER=3Droot MODE=3D100644 > >> > [...] > >> >=20 > >> > It's as if dirty buffers aren't being written out properly, or > >> > something. Has anyone else seen this? > >>=20 > >> This looks a lot like it could be a vnode refcnt leak. Files won't get > >> removed from the disk while they are still in use (the old unlink while > >> open trick). Could nullfs be a factor? > >=20 > > Yes, I make extensive use of read-only nullfs. > >=20 > > Kris (fsck still running) >=20 > It would also be interesting to find out why fsck is taking so long to > run. I don't see anything obvious in the code. I can take a transcript of the entire fsck next time if you like :-) (it ran for more than 5 hours on the 24G drive and was still going after I went to bed) Kris --envbJBWh7q8WU6mo Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.0 (FreeBSD) iD8DBQFCW94MWry0BWjoQKURAtIXAJ46XC8vUmBlFkh9CcuE2lYpr+B7nwCdFLpS zGrf0Nw5VPIA3Sm7XYEE1yU= =DJRf -----END PGP SIGNATURE----- --envbJBWh7q8WU6mo--
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