Date: Tue, 28 Feb 2006 14:40:33 -0500 From: Kris Kennaway <kris@obsecurity.org> To: "pobox@verysmall.org" <pobox@verysmall.org> Cc: freebsd-questions@freebsd.org Subject: Re: swap_pager Message-ID: <20060228194032.GA85006@xor.obsecurity.org> In-Reply-To: <44046959.4080901@verysmall.org> References: <44046959.4080901@verysmall.org>
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--1yeeQ81UyVL57Vl7 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Feb 28, 2006 at 04:16:41PM +0100, pobox@verysmall.org wrote: > I am running FreeBSD 5.4 in VMware using USB 1.1 external HDD as a disk,= =20 > which means quite slow I/O. It works fine for my needs, I only get >=20 > swap_pager: indefinite wait buffer: device: da0s1f, blkno: xxx, size: xxx >=20 > when performing heavy operations, such as rsync of a 1 GB database dump= =20 > file. >=20 > All references to the problem I found point out hardware failure. Could,= =20 > however, the problem be simply that the I/O does not manage to let the=20 > request go through within the 20 seconds wait time and that the hardware= =20 > is OK (apart from the fact that I/O is slow? And - is this message just= =20 > a notice, or does it mean that I get data corruption? Yes, it just means "operation did not complete within the arbitrarily chosen time period", and by itself it doesn't mean there exists any further problem. If the operation didn't complete because the drive threw it away, has bad blocks, etc, that would be a problem. In your case it's likely to just be the slow disk. Kris --1yeeQ81UyVL57Vl7 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2.1 (FreeBSD) iD8DBQFEBKcuWry0BWjoQKURAphfAKCN4BZnIKtVDMgviv4RmWCsT8FPdQCg8l2q Q2fYGKVBAEdIUjBpxSGm43g= =0Xxm -----END PGP SIGNATURE----- --1yeeQ81UyVL57Vl7--
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