From owner-freebsd-current Sun Apr 2 15:14:28 2000 Delivered-To: freebsd-current@freebsd.org Received: from freebie.lemis.com (freebie.lemis.com [192.109.197.137]) by hub.freebsd.org (Postfix) with ESMTP id 3897137BB5B for ; Sun, 2 Apr 2000 15:14:23 -0700 (PDT) (envelope-from grog@freebie.lemis.com) Received: (from grog@localhost) by freebie.lemis.com (8.9.3/8.9.0) id HAA41632; Mon, 3 Apr 2000 07:43:00 +0930 (CST) Date: Mon, 3 Apr 2000 07:43:00 +0930 From: Greg Lehey To: Bernd Walter Cc: Soren Schmidt , vallo@matti.ee, freebsd-current@FreeBSD.ORG Subject: Re: Deadlock with vinum raid5 Message-ID: <20000403074300.R59549@freebie.lemis.com> References: <20000331212544.A59295@myhakas.matti.ee> <200003311932.VAA70873@freebsd.dk> <20000401091140.A51727@freebie.lemis.com> <20000402011538.B24134@cicely8.cicely.de> <20000402015016.C24134@cicely8.cicely.de> <20000402174216.B25194@cicely8.cicely.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0pre2i In-Reply-To: <20000402174216.B25194@cicely8.cicely.de> WWW-Home-Page: http://www.lemis.com/~grog X-PGP-Fingerprint: 6B 7B C3 8C 61 CD 54 AF 13 24 52 F8 6D A4 95 EF Organization: LEMIS, PO Box 460, Echunga SA 5153, Australia Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-41-739-7062 Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Sunday, 2 April 2000 at 17:42:16 +0200, Bernd Walter wrote: > On Sun, Apr 02, 2000 at 01:50:16AM +0200, Bernd Walter wrote: >> On Sun, Apr 02, 2000 at 01:15:39AM +0200, Bernd Walter wrote: >>> >>> Greg - I'm using vinums raid5 code since months now for FreeBSDs CVS-Tree on >>> 7x 200M disks - it does not hang for me since a long time. >>> The latest current I tested R5 well is from 19th March on alpha. That's shortly >>> before PHKs changes - I don't beleave that it introduced something new. >>> The only problem with R5 I know of is parity corruption because of a bug in >>> lockrange() for which I've already send you a fix. Even it is a general bug it >>> seems only to cause problems together with softupdates. >> >> Ops - I oversaw that this happened with a recent current. >> The best I can say is that it is likely that it happened after the 19th March. > > I build a recent current and tested it with R5 and still don't see any hangs. > Unfortunately I don't have a toy i386 system ready and testet on alpha. > There may be some differences how data corruptions efects on this platform. I found a potentially serious bug in the RAID calculations yesterday: it assumed that sizeof (int) == 4. I suspect that it would just slow down the calculations, but in any case I've fixed it. Greg -- Finger grog@lemis.com for PGP public key See complete headers for address and phone numbers To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message