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Subject: kern/17715: bios roms must be excluded from ISA memory space
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>Number:         17715
>Category:       kern
>Synopsis:       io memory requests from pnp devices lands in video bios
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Fri Mar 31 12:50:01 PST 2000
>Closed-Date:
>Last-Modified:
>Originator:     Nikolai Saoukh
>Release:        FreeBSD 5.0-CURRENT i386
>Organization:
>Environment:

	

>Description:

PNP device with the following config

IBM0000: start dependant
IBM0000: adding io range 0xa20-0xa23, size=0x4, align=0x4
IBM0000: start dependant
IBM0000: adding io range 0xa24-0xa27, size=0x4, align=0x4
IBM0000: end dependant
IBM0000: adding memory range 0xc0000-0xdffff, size=0x4000, align=0x4000
IBM0000: adding memory range 0xc8000-0xdffff, size=0x2000, align=0x2000
IBM0000: adding irq mask 0xe08

obtain first memory region at address 0xC0000, which is beginning of
Video BIOS.

>How-To-Repeat:

	

>Fix:

	


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


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