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Date: Mon, 9 Sep 1996 16:15:15 -0600 (MDT)
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Subject: kern/1591: SMP kernel fix 960909.1
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>Number:         1591
>Category:       kern
>Synopsis:       i386/i386/mpcore.s stores _mpfps at incorrect address
>Confidential:   no
>Severity:       non-critical
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Sep  9 15:20:01 PDT 1996
>Last-Modified:
>Originator:     Steve Passe
>Organization:
New Ideas
>Release:        FreeBSD 2.2-CURRENT i386
>Environment:

	smp-sys as of August 27, 1996

>Description:

	line 113 of mpcore.s says:

	movl	%esi, _mpfps	/* Store the physical address */

	at this point we have NOT started paging so the address, which
	is linked to kernel space, is not correct.  This hasen't been
	a problem so far since _mpfps is not used anywhere (unless it
	clobbers other data).


>How-To-Repeat:

	not relevant.

>Fix:
	
	change line #113 of mpcore.s to:

	movl	%esi, _mpfps-KERNBASE	/* Store the physical address */

>Audit-Trail:
>Unformatted: