Subject: Re: test of new powerdown facility
To: Jason Thorpe <email@example.com>
From: Perry E. Metzger <firstname.lastname@example.org>
Date: 06/11/1998 10:34:21
This whole thing does make one wonder, however, about how a system
like this behaves normally in a crash. We aren't *supposed* to need to
do special stuff in order to assure that stuff like metadata is
cleanly out after a sync()....
Jason Thorpe writes:
> On Wed, 10 Jun 1998 18:12:18 -0700
> "Erik E. Fair" <email@example.com> wrote:
> > It worked - I compiled a new kernel, shut the previous one down to single
> > user mode, unmounted everything (except root, of course), and halted with
> > power off (after sync'ing myself silly), and fsck found damage on / when
> > the new kernel came up.
> > I shut down the new kernel to single user, umounted everything, created a
> > file, deleted the file, sync'd, and halt -p. No damage found on reboot.
> > So, for at least the particular combination of a SPARC Classic (sun4m), an
> > a Quantum 1080S, the SCSI SYNCHRONIZE CHACHE command at shutdown apparentl
> > had the desired result.
> Jason R. Thorpe firstname.lastname@example.org
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