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Date:      Tue, 28 Jan 2003 16:55:01 +0100
From:      Gerrit =?iso-8859-1?Q?K=FChn?= <gerrit@pmp.uni-hannover.de>
To:        Attila Nagy <bra@fsn.hu>
Cc:        current@freebsd.org
Subject:   Re: Does bg fsck have problems with large filesystems?
Message-ID:  <20030128155501.GD78630@pmp.uni-hannover.de>
In-Reply-To: <Pine.LNX.4.50.0301281617500.28577-100000@scribble.fsn.hu>
References:  <20030127174127.GD71664@pmp.uni-hannover.de> <Pine.LNX.4.50.0301281141100.28577-100000@scribble.fsn.hu> <20030128110125.GB78630@pmp.uni-hannover.de> <Pine.LNX.4.50.0301281617500.28577-100000@scribble.fsn.hu>

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On Tue, Jan 28, 2003 at 04:23:08PM +0100, Attila Nagy wrote:

> > 47105 seems to be slightly different from what I saw, because my machine
> > never paniced; the fsck just hung forever.

> It depends. My machine hangs, there's no panic.

Yes, I overlooked that in the PR when I read it first. Mine was still
usable: I could switch VTs and even log in, but I couldn't do anything
about the hanging fsck processes.

> > > I've already written to Kirk McKusick, but it seems that he has a lot
> > > of work, because I didn't get answer.
> > Ok, then things are already on their way, I guess.
> Don't know, but I hope :)

That makes two of us. :)

> > I wonder if it's only the large filesystem that triggers this problem.
> > Actually I think that my 50GB are not /that/ large, and someone else
> > should have noticed the problem before.
> I wonder what's the common in our case, then.

I really don't know. I have a SV25 barebone system from Shuttle (VIA
Twister Chipset) and an IBM deskstar 80GB IDE HD. Does that sound
familiar to you?

> > BTW: As mentioned in the PR one workaround is to turn off bg fsck. On
> > the other hand bg fsck is working fine on smaller filesystems. Is there
> > a way to turn bg fsck off for just one partition?

> I don't know any. BTW, the big partitions are those which needs the extra
> time, so it is very likely that you won't benefit too much from this...

Well, the drive has 80GB, the big partition is 50GB, so I would save
something like 3/8 of the time. Not too much, but better than nothing,
I thought. ;)


cu
  Gerrit
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