Skip site navigation (1)Skip section navigation (2)
Date:      Wed, 12 Nov 2008 21:47:35 +0200
From:      Kostik Belousov <kostikbel@gmail.com>
To:        Tim Bishop <tim-lists@bishnet.net>
Cc:        tim@bishnet.net, freebsd-stable@freebsd.org
Subject:   Re: System deadlock when using mksnap_ffs
Message-ID:  <20081112194735.GK47073@deviant.kiev.zoral.com.ua>
In-Reply-To: <20081112175826.GD26195@carrick.bishnet.net>
References:  <20081112175826.GD26195@carrick.bishnet.net>

next in thread | previous in thread | raw e-mail | index | archive | help

--cEobB2knsyc5ebfU
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Wed, Nov 12, 2008 at 05:58:26PM +0000, Tim Bishop wrote:
> I've been playing around with snapshots lately but I've got a problem on
> one of my servers running 7-STABLE amd64:
>=20
> FreeBSD paladin 7.1-PRERELEASE FreeBSD 7.1-PRERELEASE #8: Mon Nov 10 20:4=
9:51 GMT 2008 tdb@paladin:/usr/obj/usr/src/sys/PALADIN  amd64
>=20
> I run the mksnap_ffs command to take the snapshot and some time later
> the system completely freezes up:
>=20
> paladin# cd /u2/.snap/
> paladin# mksnap_ffs /u2 test.1
>=20
> It only happens on this one filesystem, though, which might be to do
> with its size. It's not over the 2TB marker, but it's pretty close. It's
> also backed by a hardware RAID system, although a smaller filesystem on
> the same RAID has no issues.
>=20
> Filesystem  1K-blocks       Used     Avail Capacity  Mounted on
> /dev/da0s1a 2078881084 921821396 990749202    48%    /u2
>=20
> To clarify "completely freezes up": unresponsive to all services over
> the network, except ping. On the console I can switch between the ttys,
> but none of them respond. The only way out is to hit the reset button.
>=20
> Any advice? I'm happy to help debug this further to get to the bottom of
> it.

You need to provide information described in the
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernel=
debug.html
and especially
http://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/kernel=
debug-deadlocks.html

--cEobB2knsyc5ebfU
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (FreeBSD)

iEYEARECAAYFAkkbMtcACgkQC3+MBN1Mb4hFIwCfU83Ua1RUyIADKc0JSPVUjTSc
m2EAoNY8eRCXqdew+m5Ir7Adhu/K85Vs
=1MY2
-----END PGP SIGNATURE-----

--cEobB2knsyc5ebfU--



Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20081112194735.GK47073>