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Re: Problem with a SCSI card

daemon@ATHENA.MIT.EDU (Dirk Foersterling)
Sat Dec 21 04:13:21 1996

Date: 	Sat, 21 Dec 1996 10:01:56 +0100
From: dirk@informatik.uni-frankfurt.de (Dirk Foersterling)
To: linux-scsi@vger.rutgers.edu
In-Reply-To: <32BB2068.7F87F599@top.ca>; from GP on Dec 20, 1996 18:25:28 -0500


On Dec 20 1996, GP wrote:
> 
>  I'm having a problem with a scsi card which I don't know the name but with a aic6360
>  adaptec chipset. I cannot use both my sound blaster and the scsi card together without
>  receiving the segmentation fault message. Even when I use the BOOT and ROOT disks the
>  message appears during bootup. And more I cannot do a make dep without seg. fault when
>  the SCSI card is in.

[...]

>          Sound Blaster: IRQ=7, DMA=1 and 6 address=220, CD=230 Midi=330
>                  The CDROM is a panasonic CR-563. Midi is disable on the SB card and
> Kernel
>          SCSI VLB Card: IRQ=12 Address:340
>          The system is a 486 DX100
>          Video BD Diamond Stealth 64 VLB with VRAM
>          My HD controller is a EIDE VLB with 2 hard disk on the primary port.
>                  The secondary port is unused.

Even if it sounds strange: Try out another Video card. I had some
interferences with several adaptec chips and S3 cards. The diamond has
an S3 chip and the aic* are adaptec chips.
Test (before video card change):
Copy some AVI file to your SCSI Harddisk and then play it. If there is
some jittering in the sound, then it _could_ be the video card. (In an
INTeL PC there are [no. of components] to the power of [processor speed]
possibilities of what could be wrong) 
I had the problems most frequently with Adaptec 1542 or 2940 and Spea/V7 graphic
adapters. Sometimes it helped to remove the SoundBlaster, but then there
were several minor read errors left.
To get rid of that problem, you have three choices:
1) BIOS upgrade for Controller AND video card. (For initialization code)
2) Use another video card.
3) Use another controller.

This may solve your problem. Another cause could be a wrong 16bit DMA
setting on the controller that will be resolved by Win95 PnP but not by
Linux.

 -dirk

-- 
                    D i r k   F "o r s t e r l i n g                  
 dirk@informatik.uni-frankfurt.de   http://www.uni-frankfurt.de/~dirk
                              ----------
   A child of five could understand this. Fetch me a child of five! 

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