Date: Mon, 18 Jan 2010 17:50:33 +0100 From: Gary Jennejohn <gary.jennejohn@freenet.de> To: Jeff Roberson <jroberson@jroberson.net> Cc: current@freebsd.org Subject: Re: Help test softupdates journaling (SUJ) Message-ID: <20100118175033.7ba10de0@ernst.jennejohn.org> In-Reply-To: <alpine.BSF.2.00.1001081456000.1027@desktop> References: <alpine.BSF.2.00.1001081456000.1027@desktop>
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On Fri, 8 Jan 2010 14:56:45 -1000 (HST) Jeff Roberson <jroberson@jroberson.net> wrote: > I have been augmenting softupdates with a small journal that will be processed > in lieu of fsck in the event of a crash. I have written some about this > project here: http://jeffr_tech.livejournal.com/ > For some reason I can't access this location. Hmm, firefox doesn't seem to like the '_'. > To install you will need to apply http://people.freebsd.org/~jeff/suj.diff to a > recent current source tree. > I had to apply part of the patch by hand, namely sys/ufs/ufs/ufs_lookup.c here (but only this block, all other patches applied OK) @@ -1221,21 +1210,29 @@ ufs_dirrewrite(dp, oip, newinum, newtype, isrmdir) > You can enable suj by running tunefs -j enable /dev/{device}. > For some reason I was unable to enable SUJ on /usr. I see the error "insufficient contiguous free space for the journal", even though /usr has 31GB free: Filesystem Size Used Avail Capacity Mounted on /dev/ada0s1e 63G 27G 31G 46% /usr /usr does have lots of fragments, but it seems like, with 31GB free, the kernel should be able to find 64MB of free, contiguous space. I didn't try specifying a journal size, however. Kind of inconvenient having /usr without soft-updates :( However, on all other filesystems (/ doesn't use SU) turning on SUJ worked: /dev/ada0s1a on / (ufs, local) /dev/ada0s1d on /var (ufs, local, soft-updates) /dev/ada0s1e on /usr (ufs, NFS exported, local) <== fails /dev/ada0s1f on /home (ufs, NFS exported, local, soft-updates) /dev/ada1a on /oldzfs (ufs, NFS exported, local, soft-updates) /dev/da1a on /uvbox (ufs, local, soft-updates) /dev/ada0s1g on /opt (ufs, NFS exported, local, soft-updates) --- Gary Jennejohn
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