Date: Mon, 13 Feb 1995 11:48:54 -0800 (PST) From: "Justin T. Gibbs" <gibbs@estienne.CS.Berkeley.EDU> To: ats@g386bsd.first.gmd.de (Andreas Schulz) Cc: hasty@netcom.com, FreeBSD-hackers@wcarchive.cdrom.com Subject: Re: My iozone results Message-ID: <199502131948.LAA08672@estienne.cs.berkeley.edu> In-Reply-To: <199502131155.MAA03876@g386bsd.first.gmd.de> from "Andreas Schulz" at Feb 13, 95 12:55:30 pm
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> > > > >Do you have any more info on your instability problems? Is it stable > > Nope, and I am seriously thinking about taking the 2842 back. > > I think it has problems. Went to DOS to play a little DESCENT, > > when I booted back to FreeBSD failed to detect my scsi hard drives. > > I managed to eventually get the scsi drives to be detected by > > switching the drives on/off. When I have my smc ethernet installed > > the adapter and my Actix S3 864 have serious problems like the > > wrong colors show up at boot time. I did manage to boot > > correctly once when I tried to use my ethernet card I got > > and instant crash. This happened several times. Now, > > the story of the 2842 timing during heavy disk drive activities > > is a different and it could be due to the 2842's device > > driver. BTW: I did try different to have my ethernet at > > different maddr. > > For me the 2842 works fine, kernel build of Feb 6. I have replaced > my 1542CF with a 2842A at Dec 21 and no problems seen regarding the 2842. > But i have seen problems on another local bus motherboard that is > working ok with a 1542. I tried to replace the 1542 with a 2825 local > bus controller and the machine simply hangs in the BIOS. Don't know > if it is the board or the adaptec BIOS :-). The machine is a cyrix 486DX. > The 2825 board works fine in another motherboard ( EISA/VL ) with an > intel 486DX. There are many motherboards that do not properly support VL busmasters. I'm guessing this is the problem Amancio is having. I have both a 2742T and a 2842 (non A) in my machine right now, and other than sheer stupidity in one modification to the driver last week, have never lost a byte of data with these controllers. > I have only seen some timeouts with a 2742T controller with the ahc > driver, but i have not looked into them, because this is on my > test machine, where i test bad SCSI disks :-). So i need first find I've heard that this can happen with SCSI-I devices that do not properly support syncronous negotiation. If you disable sync negotiation with that target, it should work. > out, if the driver has some problems or the disks. Anyone remember the > good old seagate ST296N ? :-). seagate told that this is really a SCSI > drive, so no one believed that. It sounds like an ST506 or RLL drive, it > is slower than a ST506 so it can't be SCSI :-). > > ATS ( ats@first.gmd.de or ats@cs.tu-berlin.de ) > > Andreas Schulz GMD-FIRST 12489 Berlin-Adlershof Rudower Chaussee 5 > Gebaeude 13.7 Tel: +49-30-6392-1856/+49-177-2134745 Germany/Europe > -- Justin T. Gibbs ============================================== TCS Instructional Group - Programmer/Analyst 1 Cory | Po | Danube | Volga | Parker | Torus ==============================================
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