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Date: Thu, 17 Nov 2005 19:01:03 -0500
From: Kris Kennaway <kris@obsecurity.org>
To: Rob <spamrefuse@yahoo.com>
Message-ID: <20051118000103.GA31711@xor.obsecurity.org>
References: <20051115103821.GJ39882@cirb503493.alcatel.com.au>
	<20051117225213.60430.qmail@web36203.mail.mud.yahoo.com>
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Cc: PeterJeremy@optushome.com.au, FreeBSD Stable <freebsd-stable@freebsd.org>
Subject: Re: Swapfile problem in 6?
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On Thu, Nov 17, 2005 at 02:52:12PM -0800, Rob wrote:
> --- Peter Jeremy <PeterJeremy@optushome.com.au> wrote:
> >=20
> > Basically, wait until your system deadlocks.  BREAK
> > into DDB.
> > As a start, run 'show lockedvnods', 'ps'.  My guess
> > is that you'll see a lock that has a number of
> waiters
> > which is probably the culprit.
> > Use 'panic' to get a crashdump and then you can use
> > kgdb to rummage around once you reboot
> >=20
> > If in doubt, post the output from the above commands
> > here and someone will hopefully provide further
> input.
>=20
> The output is here:
>  http://surfion.snu.ac.kr/~lahaye/swapfile.txt
>=20
>=20
> A swapfile is only swap device:
>  /swapfile of 128 MB on /dev/ad0s1a as /dev/md0
>=20
> At time of deadlock:
>  swapdevice used 13%
>=20
> Serial console gets exactly this line every few
> seconds:
>  swap_pager: indefinite wait buffer: bufobj: 0, blkno:
> 4317, size: 4096
>=20
>=20
> Do you understand this?

I commented on it elsewhere in this thread.

Kris

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