Date: Tue, 3 Jan 2012 10:26:30 +0100 From: Yamagi Burmeister <lists@yamagi.org> To: freebsd-current@freebsd.org Cc: bryce@bryce.net Subject: Re: FS hang when creating snapshots on a UFS SU+J setup Message-ID: <20120103102630.1d331316.lists@yamagi.org> In-Reply-To: <CAO_ZHU9%2Bj2V77zGyTUhSGYfzcde1ZjYB9uLpg-UHJkw0F_PTXg@mail.gmail.com> References: <CAO_ZHU8Au50SRkf3MgieAhh%2BQFBPiVaZsgHWiwfKjUVEpNuX3Q@mail.gmail.com> <CAO_ZHU9%2Bj2V77zGyTUhSGYfzcde1ZjYB9uLpg-UHJkw0F_PTXg@mail.gmail.com>
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--Signature=_Tue__3_Jan_2012_10_26_30_+0100_PqOZ27LfnIsxQuLw Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Hi, I've seen this too (and other problems with SU+J and snapshots) and was able to reproduce it fairly easy. I wrote a PR: http://www.freebsd.org/cgi/query-pr.cgi?pr=3D163310=20 Never received any feedback until now... On Mon, 2 Jan 2012 23:27:57 -0600 Bryce Edwards <bryce@bryce.net> wrote: > I have a RELENG_9 machine that hangs when a snapshot is created on the > root fs (UFS, with SU+J). =A0More accurately, all the processes show a > state of "suspfs" (with ^T) and no fs activity is completed from then > on. =A0A hard reboot (power cycle) was the only way to proceed. >=20 > Here's some reference info - let me know what else I should provide. >=20 > $uname -a > FreeBSD xxx.xxx.net 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #0: Sun Dec > 25 05:04:37 UTC 2011 =A0 =A0 root@xxx.xxx.net:/usr/obj/usr/src/sys/GENERIC > amd64 >=20 > csup was run just before build[world|kernel] so you have reference on > the version information. >=20 > $mount > /dev/gpt/root on / (ufs, local, journaled soft-updates) > devfs on /dev (devfs, local, multilabel) > linprocfs on /compat/linux/proc (linprocfs, local) > { zfs info removed } >=20 > $df -h > Filesystem =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0Size =A0 =A0Used =A0 Avail = Capacity =A0Mounted on > /dev/gpt/root =A0 =A0 =A0 =A0 =A0 =A0 =A0 454G =A0 =A09.1G =A0 =A0409G = =A0 =A0 2% =A0 =A0/ > devfs =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 1.0k =A0 =A01.0k =A0 = =A0 =A00B =A0 100% =A0 =A0/dev > linprocfs =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 4.0k =A0 =A04.0k =A0 =A0 = =A00B =A0 100% =A0 =A0/compat/linux/proc > { zfs info removed } >=20 > After the hard reset, there was a snapshot file listed in /.snap and > it was ~465 GB, iirc. =A0Unfortunately, I needed to get things going > again so I was not able to debug or diagnose further. =A0I may be able > to schedule a time that I could recreate the issue and diagnose > better, but I wanted to get your input on what data points and/or > command you would be interested in. >=20 > Thanks in advance, >=20 > Bryce > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >=20 --=20 Homepage: www.yamagi.org XMPP: yamagi@yamagi.org GnuPG/GPG: 0xEFBCCBCB --Signature=_Tue__3_Jan_2012_10_26_30_+0100_PqOZ27LfnIsxQuLw Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk8CycsACgkQWTjlg++8y8t+lACgx9akfHcYQD9FkJE3KErJgKru 6J8An2J4BYGtFahwLeiYRDAWUywZ3lHy =9ISe -----END PGP SIGNATURE----- --Signature=_Tue__3_Jan_2012_10_26_30_+0100_PqOZ27LfnIsxQuLw--
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