Date: Mon, 3 Apr 2000 07:43:00 +0930 From: Greg Lehey <grog@lemis.com> To: Bernd Walter <ticso@cicely.de> Cc: Soren Schmidt <sos@freebsd.dk>, vallo@matti.ee, freebsd-current@FreeBSD.ORG Subject: Re: Deadlock with vinum raid5 Message-ID: <20000403074300.R59549@freebie.lemis.com> In-Reply-To: <20000402174216.B25194@cicely8.cicely.de> 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>
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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
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