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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[-- Attachment #1 --] 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=163310 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). More accurately, all the processes show a > state of "suspfs" (with ^T) and no fs activity is completed from then > on. A hard reboot (power cycle) was the only way to proceed. > > Here's some reference info - let me know what else I should provide. > > $uname -a > FreeBSD xxx.xxx.net 9.0-PRERELEASE FreeBSD 9.0-PRERELEASE #0: Sun Dec > 25 05:04:37 UTC 2011 root@xxx.xxx.net:/usr/obj/usr/src/sys/GENERIC > amd64 > > csup was run just before build[world|kernel] so you have reference on > the version information. > > $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 } > > $df -h > Filesystem Size Used Avail Capacity Mounted on > /dev/gpt/root 454G 9.1G 409G 2% / > devfs 1.0k 1.0k 0B 100% /dev > linprocfs 4.0k 4.0k 0B 100% /compat/linux/proc > { zfs info removed } > > After the hard reset, there was a snapshot file listed in /.snap and > it was ~465 GB, iirc. Unfortunately, I needed to get things going > again so I was not able to debug or diagnose further. I 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. > > Thanks in advance, > > 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" > -- Homepage: www.yamagi.org XMPP: yamagi@yamagi.org GnuPG/GPG: 0xEFBCCBCB [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.18 (FreeBSD) iEYEARECAAYFAk8CycsACgkQWTjlg++8y8t+lACgx9akfHcYQD9FkJE3KErJgKru 6J8An2J4BYGtFahwLeiYRDAWUywZ3lHy =9ISe -----END PGP SIGNATURE-----help
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