Date: Tue, 5 May 2009 14:51:19 +0300 From: Kostik Belousov <kostikbel@gmail.com> To: Doug Poland <doug@polands.org> Cc: freebsd-fs@freebsd.org Subject: Re: kern/94769: [ufs] Multiple file deletions on multi-snapshotted filesystems causes hang Message-ID: <20090505115119.GM1948@deviant.kiev.zoral.com.ua> In-Reply-To: <200905042030.n44KU3Bp058343@freefall.freebsd.org> References: <200905042030.n44KU3Bp058343@freefall.freebsd.org>
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--/jvaajy/zP2g41+Q Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, May 04, 2009 at 08:30:03PM +0000, Doug Poland wrote: > The following reply was made to PR kern/94769; it has been noted by GNATS. >=20 > From: Doug Poland <doug@polands.org> > To: bug-followup@FreeBSD.org, john@kozubik.com > Cc: =20 > Subject: Re: kern/94769: [ufs] Multiple file deletions on multi-snapshott= ed > filesystems causes hang > Date: Mon, 4 May 2009 15:11:33 -0500 >=20 > I recently started experiencing similar behavior on a 7.1-RELEASE i386 > host. In this case the deadlock occurs as soon as > sysutils/freebsd-snapshots run it's weekly cron entry: > =20 > 0 * * * * root periodic-snapshot hourly > 0 0 * * * root periodic-snapshot daily > 0 0 * * 0 root periodic-snapshot weekly > =20 > I am running a GENERIC kernel without quotas. > =20 > Here's the list of snapshots on the various filesystems: > =20 > Filesystem User User% Snap Snap% Snapshot > / 267MB 54.0% 704KB 0.1% daily.0 > / 267MB 54.0% 704KB 0.1% daily.1 > / 267MB 54.0% 704KB 0.1% daily.2 > / 267MB 54.0% 704KB 0.1% daily.3 > / 267MB 54.0% 704KB 0.1% daily.4 > / 267MB 54.0% 784KB 0.2% daily.5 > / 267MB 54.0% 784KB 0.2% daily.6 > / 267MB 54.0% 608KB 0.1% hourly.0 > / 267MB 54.0% 640KB 0.1% hourly.1 > / 267MB 54.0% 656KB 0.1% hourly.2 > / 267MB 54.0% 656KB 0.1% hourly.3 > / 267MB 54.0% 704KB 0.1% weekly.0 > / 267MB 54.0% 896KB 0.2% weekly.1 > / 267MB 54.0% 928KB 0.2% weekly.2 > / 267MB 54.0% 1MB 0.2% weekly.3 > /var 1237MB 10.4% 16MB 0.1% daily.0 > /var 1237MB 10.4% 17MB 0.1% daily.1 > /var 1237MB 10.4% 30MB 0.3% daily.2 > /var 1237MB 10.4% 32MB 0.3% daily.3 > /var 1237MB 10.4% 32MB 0.3% daily.4 > /var 1237MB 10.4% 33MB 0.3% daily.5 > /var 1237MB 10.4% 141MB 1.2% daily.6 > /var 1237MB 10.4% 7MB 0.1% hourly.0 > /var 1237MB 10.4% 7MB 0.1% hourly.1 > /var 1237MB 10.4% 7MB 0.1% hourly.2 > /var 1237MB 10.4% 8MB 0.1% hourly.3 > /var 1237MB 10.4% 8MB 0.1% hourly.4 > /var 1237MB 10.4% 8MB 0.1% hourly.5 > /var 1237MB 10.4% 8MB 0.1% hourly.6 > /var 1237MB 10.4% 8MB 0.1% hourly.7 > /var 1237MB 10.4% 8MB 0.1% hourly.8 > /var 1237MB 10.4% 8MB 0.1% hourly.9 > /var 1237MB 10.4% 25MB 0.2% weekly.0 > /usr 87545MB 74.1% 138MB 0.1% daily.0 > /usr 87545MB 74.1% 217MB 0.2% daily.1 > /usr 87545MB 74.1% 234MB 0.2% daily.2 > /usr 87545MB 74.1% 287MB 0.2% daily.3 > /usr 87545MB 74.1% 292MB 0.2% daily.4 > /usr 87545MB 74.1% 278MB 0.2% daily.5 > /usr 87545MB 74.1% 349MB 0.3% daily.6 > /usr 87545MB 74.1% 88MB 0.1% hourly.0 > /usr 87545MB 74.1% 200MB 0.2% hourly.1 > /usr 87545MB 74.1% 864MB 0.7% weekly.0 > /usr 87545MB 74.1% 721MB 0.6% weekly.1 > /usr 87545MB 74.1% 782MB 0.7% weekly.2 > /usr 87545MB 74.1% 4772MB 4.0% weekly.3 > =20 > I am eager and willing to assist in anyway to investigate and eliminate > this issue. Try today stable/7 after the r190690. --/jvaajy/zP2g41+Q Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEYEARECAAYFAkoAKDcACgkQC3+MBN1Mb4iXYgCghoBu6l6oMie8uIKa41WqQj6M IfAAn0vVS2mGwkxxZtRCLDY4y8DZ45NU =GNMy -----END PGP SIGNATURE----- --/jvaajy/zP2g41+Q--
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