Date: Mon, 26 Aug 2002 22:04:25 -0600 From: "Justin T. Gibbs" <gibbs@scsiguy.com> To: "Fedor G. Pikus" <pikus@pikus.net> Cc: aic7xxx@FreeBSD.ORG Subject: Re: Strange log messages from AHA2940UW Message-ID: <3997050000.1030421065@aslan.scsiguy.com> In-Reply-To: <Pine.LNX.4.33.0208261916180.13328-100000@valinor.pikus.net> References: <Pine.LNX.4.33.0208261916180.13328-100000@valinor.pikus.net>
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> I tried out your sugestion, the results are ... interesting. > First of all, if I have a CD in the CD drive, and a DVD-RAM in the > DVD-RAM, I don't get the SDTR message. How does the CD enter the > picture I have no idea, it's an ATAPI CD on ide-scsi. I hadn't noticed that your CDROM is not on an aic7xxx controller. It shouldn't matter as far as the SDTR messages go. > Now, the bad news: with no SDTR messages copying 2G of data from > hard drive to DVD-RAM still drives the load up to 5 and even more, > X freezes every few seconds, while top and xosview show no CPU activity, > and no processes consume any significant resources. That's just the nature of the iorequest lock in Linux. It will lock down all kinds of things while you are doing I/O. My understanding is that 2.5.X is better, but I haven't tested it yet. -- Justin To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe aic7xxx" in the body of the message
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