Date: Tue, 17 Jan 2012 09:36:43 +0000 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: freebsd-stable@freebsd.org Subject: Re: dumpdev default Message-ID: <4F15412B.3000501@infracaninophile.co.uk> In-Reply-To: <4F1534C2.4080803@ish.com.au> References: <4F15253E.7070404@ish.com.au> <20120117081040.GA18825@icarus.home.lan> <4F1534C2.4080803@ish.com.au>
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On 17/01/2012 08:43, Aristedes Maniatis wrote:
> The dumpon utility will refuse to enable a dump device which is
> smaller
> than the total amount of physical memory as reported by the hw.phy=
smem
> sysctl(8) variable.
>=20
> However, I have found that
>=20
> # dumpon -v /dev/ad4s1b
> kernel dumps on /dev/ad4s1b
>=20
> # sysctl hw.physmem
> hw.physmem: 25744310272
>=20
> # swapinfo
> Device 1K-blocks Used Avail Capacity
> /dev/ad4s1b 8388608 0 8388608 0%
>=20
> So, 24Gb RAM, 8Gb swap device. No complaints from dumpon. Either it is
> silently failing (poor response from the app) or it is incorrectly
> setting the dump device to something too small.
We have minidumps nowadays: that's been the default since 7.0.
Cheers,
Matthew
--=20
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
JID: matthew@infracaninophile.co.uk Kent, CT11 9PW
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