Re: FYI: installation crashes if softupdates enabled for / fs
From: jpd (read_the_sig_at_do.not.spam.it)
Date: 11/30/03
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Date: Sun, 30 Nov 2003 11:29:07 +0000 (UTC)
In article <slrnbsiug3.r9d.dsf@gaia.roc2.gblx.net>, Dan Foster wrote:
> Just an heads up with the 5.2 code... seems to tickle a VM bug relating to
> a mutex when it tries to mark some pages as being dirty in the buffer cache
> (while files are being extracted -- typically doesn't get very far in the
> base sets before this bug is tickled).
That looks serious. Then again, such thing happen if the VM changes. :-)
Thanks for the heads up though. Does explain a few of the baffled n00bs
in here.
> It only happens if *specifically* the / filesystem has softupdates enabled.
>
> So the current workaround is to disable softupdates on / filesystem if
> you're doing an installation for 5.2. I think you can enable softupdates on
> / if you like, post-installation... just not for the actual installation.
Why would that be? I mean, how is the VM being tickled differently during
sysinstall to not touch that bug during normal operation?
> It also doesn't seem to be an issue if you do a 5.2 install via buildworld
> and installworld, so it's more likely an issue for users doing a CD
> install, typically a new system 'from scratch'.
Meaning that _all_ n00bs will run into that, given k1dd13s's universal
fetish for dowloading as many isos as you can prior to installing.
> Considering the bug is deep in the guts of the VM, I don't know if it can
> be fixed for 5.2-RELEASE.
[snip]
> http://www.freebsd.org/cgi/query-pr.cgi?pr=59792
This *looks like* it's serious enough to postpone releasing 5.2 for it.
Then again, I'm not a core@ member so it's not my call to decide that. :-)
-- j p d (at) d s b (dot) t u d e l f t (dot) n l .
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