Date: Fri, 02 Mar 2012 13:36:29 -0800 From: Kirk McKusick <mckusick@mckusick.com> To: Ivan Voras <ivoras@freebsd.org> Cc: freebsd-fs@freebsd.org Subject: Re: fsync: giving up on dirty Message-ID: <201203022136.q22LaTvj037524@chez.mckusick.com> In-Reply-To: <CAF-QHFUBEsZ-KJ86Btr%2BwcvynraTAGz9BJ3e0Wyw95tdyMzogA@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
> From: Ivan Voras <ivoras@freebsd.org> > Date: Fri, 2 Mar 2012 12:57:00 +0100 > Subject: Re: fsync: giving up on dirty > To: Kirk McKusick <mckusick@mckusick.com> > Cc: freebsd-fs@freebsd.org > > On 29 February 2012 20:19, Kirk McKusick <mckusick@mckusick.com> wrote: > > > I believe that the problem is because the soft updates worklist needs > > to be flushed before some of the dirty blocks can be successfully written. > > If you are running a 9-stable system on this machine, are using journaled > > soft updates on the filesystem in question, and are willing to try out > > my first attempt at a fix, let me know and I'll send you the diffs for it. > > The thing is - I'm not. This is a 9-stable, but it was upgraded from 8 > and I don't have SUJ enabled. > > I keep getting such messages daily. > > Mar 1 04:02:09 skynet kernel: fsync: giving up on dirty > Mar 1 04:02:09 skynet kernel: 0xfffffe000fef2780: tag devfs, type VCHR > Mar 1 04:02:09 skynet kernel: usecount 1, writecount 0, refcount 2515 > mountedhere 0xfffffe000fd25200 > Mar 1 04:02:09 skynet kernel: flags () > Mar 1 04:02:09 skynet kernel: v_object 0xfffffe000fe96d98 ref 0 pages 10182 > Mar 1 04:02:09 skynet kernel: lock type devfs: EXCL by thread > 0xfffffe003dc8d000 (pid 79344) > Mar 1 04:02:09 skynet kernel: dev multipath/hpdisk4-web Thanks for the report. It is useful to know that this can occur even with non SUJ systems. I am working with Peter Holm to identify the cause and will keep you (and the list) posted with what we figure out. Kirk McKusick
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201203022136.q22LaTvj037524>