Date: Fri, 6 Jul 2001 00:52:06 -0500 From: Dan Nelson <dnelson@emsphone.com> To: David Scheidt <dscheidt@tumbolia.com> Cc: "Benjamin P. Grubin" <bgrubin@pobox.com>, current@FreeBSD.ORG Subject: Re: softupdates on / Message-ID: <20010706005206.A3930@dan.emsphone.com> In-Reply-To: <Pine.BSF.4.32L2.0107060045440.38148-100000@shell-2.enteract.com> References: <20010705192828.B25217@dan.emsphone.com> <Pine.BSF.4.32L2.0107060045440.38148-100000@shell-2.enteract.com>
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In the last episode (Jul 06), David Scheidt said:
> On Thu, 5 Jul 2001, Dan Nelson wrote:
>
> :In the last episode (Jul 05), Benjamin P. Grubin said:
> :> As of a month ago or so, there was some discussion that concluded it
> :> was unsafe to enable softupdates on a root partition. Is it safe to
> :> go back in the water there, now?
> :
> :The 2 drawbacks with SU are
> :
> :1 - You can't immediately reuse the space occupied by a file you just
> : deleted; this may bite you if you do an installworld and don't have
> : 20MB free on /. when it comes to installing /sbin, you need 18MB
> : for the new binaries, but you can't reuse the 18MB for the
> : just-deleted binaries.
>
> I've dodged that problem by SIGSTOPing installworld a couple times during
> the /sbin install, waiting for softupdates to catchup, and then SIGCONTing
> it. That's a pain; it's ugly, but it does work. Easier than a reboot,
> sometimes.
My workaround when it bit me was to run a "while sleep 1 ; do sync ;
done" loop in another window to speed up the softupdate clock. I
suppose cranking down the kern.{file,meta,dir}delay sysctls would have
done the same thing.
--
Dan Nelson
dnelson@emsphone.com
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