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Removed bogus LARGMEM code and option. The code paniced when

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biosextmem > 65536, but biosextmem is a 16-bit quantity so it is
guaranteed to be < 65536.  Related cruft for biosbasemem was
mostly cleaned up in rev.1.26.
This commit is contained in:
Bruce Evans 1996-09-10 23:07:04 +00:00
parent 0463028c37
commit dad0de774e
4 changed files with 4 additions and 28 deletions
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13
sys/amd64/amd64/machdep.c
View file

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
* $Id: machdep.c,v 1.201 1996/09/03 18:50:36 nate Exp $
* $Id: machdep.c,v 1.202 1996/09/06 23:07:03 phk Exp $
*/
#include "npx.h"
@ -1144,17 +1144,6 @@ init386(first)
bootinfo.bi_extmem, biosextmem);
}
/*
* Some 386 machines might give us a bogus number for extended
* mem. If this happens, stop now.
*/
#ifndef LARGEMEM
if (biosextmem > 65536) {
panic("extended memory beyond limit of 64MB");
/* NOTREACHED */
}
#endif
pagesinbase = biosbasemem * 1024 / PAGE_SIZE;
pagesinext = biosextmem * 1024 / PAGE_SIZE;

3
sys/conf/options.i386
View file

@ -1,4 +1,4 @@
# $Id: options.i386,v 1.15 1996/09/06 23:33:45 pst Exp $
# $Id: options.i386,v 1.16 1996/09/10 21:38:47 bde Exp $
BOUNCEPAGES opt_bounce.h
USER_LDT
MATH_EMULATE opt_math_emulate.h
@ -9,7 +9,6 @@ COMPAT_LINUX opt_dontuse.h
SHOW_BUSYBUFS opt_machdep.h
PANIC_REBOOT_WAIT_TIME opt_machdep.h
LARGEMEM opt_machdep.h
MAXMEM opt_machdep.h
PERFMON opt_perfmon.h
AUTO_EOI_1 opt_auto_eoi.h

3
sys/i386/conf/options.i386
View file

@ -1,4 +1,4 @@
# $Id: options.i386,v 1.15 1996/09/06 23:33:45 pst Exp $
# $Id: options.i386,v 1.16 1996/09/10 21:38:47 bde Exp $
BOUNCEPAGES opt_bounce.h
USER_LDT
MATH_EMULATE opt_math_emulate.h
@ -9,7 +9,6 @@ COMPAT_LINUX opt_dontuse.h
SHOW_BUSYBUFS opt_machdep.h
PANIC_REBOOT_WAIT_TIME opt_machdep.h
LARGEMEM opt_machdep.h
MAXMEM opt_machdep.h
PERFMON opt_perfmon.h
AUTO_EOI_1 opt_auto_eoi.h

13
sys/i386/i386/machdep.c
View file

@ -35,7 +35,7 @@
* SUCH DAMAGE.
*
* from: @(#)machdep.c 7.4 (Berkeley) 6/3/91
* $Id: machdep.c,v 1.201 1996/09/03 18:50:36 nate Exp $
* $Id: machdep.c,v 1.202 1996/09/06 23:07:03 phk Exp $
*/
#include "npx.h"
@ -1144,17 +1144,6 @@ init386(first)
bootinfo.bi_extmem, biosextmem);
}
/*
* Some 386 machines might give us a bogus number for extended
* mem. If this happens, stop now.
*/
#ifndef LARGEMEM
if (biosextmem > 65536) {
panic("extended memory beyond limit of 64MB");
/* NOTREACHED */
}
#endif
pagesinbase = biosbasemem * 1024 / PAGE_SIZE;
pagesinext = biosextmem * 1024 / PAGE_SIZE;