Date: Thu, 1 Oct 1998 11:47:35 +0200 (CEST) From: Andre Hinrichs <andre@u9eta.dmst01.telekom.de> To: aic7xxx Mailing List <aic7xxx@FreeBSD.ORG> Subject: Re: History available? Timing Problem with Fujitsu MO drive... Message-ID: <Pine.LNX.3.96.981001113635.505A-100000@w9e64007.dmst01.telekom.de> In-Reply-To: <36132648.F55AD22@dialnet.net>
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On Thu, 1 Oct 1998, Doug Ledford wrote: > Andre Hinrichs wrote: > > > > Hi SCSI fans, > > > > is there a history available of what is already discussed here? > > > > If not, here is my problem (can be solved by somebody even if a > > history exists, of course :-)) > > > > I have an Adaptec 2940UW with one wide scsi harddrive, one normal scsi > > harddrive, one scsi CDROM drive and one MO drive. > > The problem is that the AIC7xxx drives says the MO drive is synchronous > > at 20MB/s while this drive is set to 10MB/s in the BIOS of the controller. > > The kernel hangs in a reset loop on ID 4 (the MO drive) > > Is there any chance to force a specific transfer rate? > > You don't state what version of the aic7xxx driver you are using. The > 5.1.0-pre12 driver shouldn't have a problem like this. Oh yes, I forgot. I tried the kernel versions 2.0.34, 2.0.35, 2.1.119-122 without aic7xxx patches and 2.0.35 and 2.1.122 with the current aic7xxx pre patches (also 5.1.0-pre12). Unfortunately, nothing does work. As stated above, the kernel thinks about the wrong transfer rate. The problem does NOT occur with an old Adaptec 2940AU Bios v1.21 and kernel 2.0.34. Kernel version 2.0.35 does already have the same problem even with this hardware. Where does the driver ask for the transfer rate? Can I set (force) a specific transfer rate for some devices? Thanx Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-aic7xxx" in the body of the message
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