Date: Fri, 6 Jun 1997 06:16:54 -0400 (EDT) From: Thomas David Rivers <ponds!rivers@dg-rtp.dg.com> To: ponds!root.com!dg, ponds!freefall.cdrom.com!freebsd-hackers, ponds!lakes.water.net!rivers Subject: Re: Speed of 2.2.1... & "daily panics" Message-ID: <199706061016.GAA03901@lakes.water.net>
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David Greeman writes:
>
> >
> >I've noticed a strange thing seems to have happened in recent 2.2.,
> >uname:
> >FreeBSD ponds.water.net 2.2-970510-RELENG FreeBSD 2.2-970510-RELENG #0: Fri May
> >16 15:06:15 EDT 1997 rivers@lakes.water.net:/usr/src/sys-970510/compile/POND
> >S i386
> >
> >My news machine is now taking more than 3 days to expire the news.
> >This is a 386dx-33 with ~1.5gig of IDE space...
> >
> >Version 2.1.7 would expire everything in a matter of hours,
> >version 2.2-970510 on the same hardware takes days...
>
> How much main memory does it have?
8 Meg - but swapinfo indicates very little swap is being used (about 11K)
so I don't think things are thrashing... [That hasn't changed from 2.1.7..]
Do you suspect a VM algorithm difference?
But - of course as soon as I noted I wasn't getting the panics, I got:
panic: ufs_ihashget: recursive lock not expected -- pid %d
which is consistent with the "stuff on the disk is bad" scenario I'm seeing.
I also tried the 970510 kernel on my reliable reproduction of the problem;
it still occurs there... it must just be that the machine was "busy."
>
> -DG
>
> David Greenman
> Core-team/Principal Architect, The FreeBSD Project
>
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