Date: Sun, 29 Jan 2012 14:31:56 +0000 From: =?iso-8859-1?Q?Ant=F3nio_Trindade?= <antonio.trindade@gmail.com> To: freebsd-fs@freebsd.org, freebsd-stable@freebsd.org, freebsd-bugs@freebsd.org Subject: Re: kernel: panic: softdep_sync_buf: Unknown type jnewblk Message-ID: <5CDF3EE0-2FC6-4445-9BC4-502CA95BE70C@gmail.com> In-Reply-To: <201201290809.q0T89xrA070840@chez.mckusick.com> References: <201201290809.q0T89xrA070840@chez.mckusick.com>
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Hi. I'm pretty sure this will be considered almost as spam, but I reactivated SU+J a day and half ago and it still did not panic. However, I also activated dumpdev, so I'll be prepared to provide additional information in case of a panic. Cumprimentos/Best regards/Mit freundlichen Grüßen, António Trindade Antonio <dot> Trindade <at> gmail.com Sítios pessoais: Galeria Fotográfica: http://trindade.myphotos.cc/fotos/ Blog de fotografia: http://trindade.myphotos.cc/fotografia/ Blog de notícias: http://trindade.myphotos.cc/noticiasavulsas/ Blog pessoal: http://trindade.myphotos.cc/pensamentosnoar/ On 2012/01/29, at 08:09, Kirk McKusick wrote: >> Date: Fri, 27 Jan 2012 09:39:34 +0100 >> From: Yamagi Burmeister <lists@yamagi.org> >> To: freebsd@jdc.parodius.com >> Cc: antonio.trindade@gmail.com, freebsd-fs@freebsd.org, dougb@freebsd.org, >> freebsd-stable@freebsd.org >> Subject: Re: kernel: panic: softdep_sync_buf: Unknown type jnewblk >> >> Hi :) >> >> On Thu, 26 Jan 2012 17:54:30 -0800 >> Jeremy Chadwick <freebsd@jdc.parodius.com> wrote: >> >>> I'll also point out, though the OP isn't using snapshots, that it's >>> confirmed use of snapshots on SU+J can result in a full filesystem hang. >>> Confirmation is from Kirk McKusick (author of SU and designer of SU+J): >>> >>> http://lists.freebsd.org/pipermail/freebsd-fs/2012-January/013429.html >>> >>> Something really needs to be done about this combination of problems. >>> >>> Since SU+J is the default choice for all UFS filesystems on 9.0-RELEASE, >>> the only solution I can think of is to send a massive announcement to >>> relevant mailing lists, AND put something on the freebsd.org home page >>> about these issues. >> >> The problem was analyzed but no immediate solution found. Therefor >> snapshots on filesystems with SU+J (but not SU alone) were disabled >> by Kirk McKusick in SVN r230250. The MFC to 9-STABLE has still to >> be done. Maybe this fix is a candidate for an errata notice / patch, >> distributed by freebsd-update? > > With revision 230725 I have MFC'ed to 9 the above change to disable > snapshots when running SU+J. Hopefully Jeff and I will manage to get > a fix for snapshots so as to be able to run them reliably with SU+J. > The above change is not relevant to 8 or earlier systems, so this MFC > will not be applied to them. > > Kirk McKusickhelp
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