From owner-freebsd-bugs Mon Mar 12 19: 0: 9 2001 Delivered-To: freebsd-bugs@hub.freebsd.org Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by hub.freebsd.org (Postfix) with ESMTP id C616837B719 for ; Mon, 12 Mar 2001 19:00:02 -0800 (PST) (envelope-from gnats@FreeBSD.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.11.1/8.11.1) id f2D302F67107; Mon, 12 Mar 2001 19:00:02 -0800 (PST) (envelope-from gnats) Date: Mon, 12 Mar 2001 19:00:02 -0800 (PST) Message-Id: <200103130300.f2D302F67107@freefall.freebsd.org> To: freebsd-bugs@FreeBSD.org Cc: From: Mark Handley Subject: Re: kern/25104: file corruption with Adaptec 29160 SCSI adapter Reply-To: Mark Handley Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org The following reply was made to PR kern/25104; it has been noted by GNATS. From: Mark Handley To: freebsd-gnats-submit@FreeBSD.org, mjh@aciri.org Cc: Subject: Re: kern/25104: file corruption with Adaptec 29160 SCSI adapter Date: Mon, 12 Mar 2001 18:51:21 -0800 I still haven't found a cure for this, but here are a few things I've tried: - configure the adaptor to only use 80MB/s - disable write caching in the adaptor - build a kernel that has tagged queuing disabled for this particular Seagate drive. So far, no luck. I'm still getting file corruption. Of the corrupted files I've looked at, here's where the corruptions starts (rounded to the nearest MB). 192MB, 208MB, 496MB, 256MB, 0.9MB, 437MB, 905MB, 656MB, 576MB, 672MB, 512MB, 672MB, 400MB, 643MB, 752MB. The 0.9MB corruption seems to be an anomaly amongst my anomalies - when I was writing 100MB files, I wrote thousands of files and never saw corruption. When writing 768MB files, I'm seeing about one file in seven get corrupted. BTW, if someone wants remote access to help track this down, I can oblige. Cheers, Marj To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message