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Subject: kern/22862: ncr driver problem with 4.2-BETA
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>Number:         22862
>Category:       kern
>Synopsis:       ncr probe fails with CACHE TEST FAILED: ? write ? read
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Nov 15 01:30:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     David Muir Sharnoff
>Release:        FreeBSD 4.2-STABLE i386
>Organization:
Idiom
>Environment:

	FreeBSD 4.0-STABLE boot messages:

	ncr0: <ncr 53c825 fast10 wide scsi> port 0x7400-0x74ff mem 0xe4102000-0xe41020ff irq 12 at device 10.0 on pci0
	ncr0: driver is using old-style compatability shims

	I can't be sure that my hardware is completely function.  I do
	know that it's been working for a long time (>1yr) and my
	system is generally very stable .

>Description:

	I tried to upgrade to the latest -STABLE.  That happens to
	be 4.2-BETA.  My scsi controller no longer probes.  Big 
	problem.

	It fails with a message like:

		ncr0: CACHE TEST FAILED: ? write 1 ? read 2 

		or maybe write 2 read 1.

	Sorry my notes aren't perfect.

>How-To-Repeat:

	Try to boot 4.2-BETA on my home system.  Sigh.

>Fix:

	I'm compiling a kernel with the 4.0 version of ncr.c in 
	the hopes that it will work.   That's a short-term fix
	though.


>Release-Note:
>Audit-Trail:
>Unformatted:


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