From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dimitri Maziuk Subject: Re: handling fs errors Date: Tue, 22 Jan 2013 12:29:13 -0600 Message-ID: <50FEDA79.2090203@bmrb.wisc.edu> References: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enig26E5B191A4AE69892B7F8AD8" Return-path: Received: from cowfish.bmrb.wisc.edu ([144.92.167.220]:38984 "EHLO mail.bmrb.wisc.edu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752198Ab3AVS3O (ORCPT ); Tue, 22 Jan 2013 13:29:14 -0500 Received: from stingray.bmrb.wisc.edu (stingray.bmrb.wisc.edu [144.92.167.179]) by mail.bmrb.wisc.edu (Postfix) with ESMTP id B11992C010D for ; Tue, 22 Jan 2013 12:29:13 -0600 (CST) In-Reply-To: Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enig26E5B191A4AE69892B7F8AD8 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On 01/22/2013 12:05 AM, Sage Weil wrote: > We observed an interesting situation over the weekend. The XFS volume = > ceph-osd locked up (hung in xfs_ilock) for somewhere between 2 and 4=20 > minutes. =2E.. FWIW I see this often enough on cheap sata drives: they've a failure mode that makes sata driver timeout, reset the link, resend the command, rinse, lather, repeat. (You usually get "slow to respond, please be patient" and/or "resetting link" in syslog & console.) It's at the low enough level to freeze the whole system for minutes. --=20 Dimitri Maziuk Programmer/sysadmin BioMagResBank, UW-Madison -- http://www.bmrb.wisc.edu --------------enig26E5B191A4AE69892B7F8AD8 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.14 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iD8DBQFQ/tp5xzG8ttqkbbgRAmJgAKDI80cZe/rleUIOPCurF0suJen33wCgkxZY X1B58j77HM1YfNtGcrSRJPI= =9qi2 -----END PGP SIGNATURE----- --------------enig26E5B191A4AE69892B7F8AD8--