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Re: sym53c8xx SCSI Controller and Kernel 2.4.5 boot problems


I too have a similar problem.  At first I thought it was an issue with the 
ethernet card driver (de4x5).  But the more I look at the problem, it may in 
fact, be the scsi driver.  In my case, the system stays up for a while, but 
seems to fail when large amounts of data are transfered over the ethernet.

My scsi card requires the ncr 53c8xx driver if you follow the read me (it 
makes sense) and always has worked.  My processor and MB seem to be identical 
to yours.  I have tried each revision of the kernel starting at 2.4.0 through 
2.4.6 and have had no success.  I have enve replaced the tulip driver with 
the latest version from sourceforge and it still will not work for me.

On Wednesday 11 July 2001 02:37 pm, Martin Sanborn wrote:
> I'm having problems booting the 2.4.5 kernel on my alpha machine. I've used
> both the stock kernel source (from kernel.org) and the debian kernel source
> with the same results. I believe it comes down to the sym53c875 SCSI
> controller in the machine. When I boot the new kernel, it will freeze after
> initializing the SCSI card while trying to identify what SCSI disks are
> present.  I've tried the sym53c8xx driver, the NCR 53c8xx driver, and the
> old NCR 53c7,8xx driver. Only the sym53c8xx driver gets to the point of
> attempting to ID the SCSI devices.
> I should note that the generic 2.2.19-2 kernel in the 2.2r3 release works
> fine, and it uses the sym53c8xx driver. Also, (obviously), the version of
> the sym53c8xx driver is different in the 2.2.19 and 2.4.5 kernels.
> In configuring the kernel, I have SCSI support, SCSI disk support, and SCSI
> CDROM support. In addition, I compile the sym53c8xx driver into the kernel,
> and no other drivers.
> I found a note on another Alpha mailing list about someone having the same
> problem with the 2.4.test1 kernel, but no follow-up or solution was posted.
> Does anyone have suggestions?
> My setup:
> 21164A processor
> EB164, variation PC164 type system
> SMC  FDC37C93X Ultra  IO controller that contains:
>    DEC Tulip ethernet controller
>    sym53c875 SCSI controller
> 256MB RAM
> Debian woody/testing (except for X11 packages, which are from potato)

James D. Freels, P.E._i, Ph.D.
Oak Ridge National Laboratory
freelsjd@ornl.gov - work
jdfreels@home.com - home

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