Date: Thu, 4 May 2000 18:49:07 -0500 From: "Duncan, Eric A." <eric@cdc.net> To: "Charles Henrich" <henrich@sigbus.com>, <freebsd-smp@freebsd.org> Subject: RE: i840 Tyan Thunder Message-ID: <NDBBIMCDELJLMJDJPOFICEMOCEAA.eric@cdc.net> In-Reply-To: <20000504163008.B89733@sigbus.com>
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Yes. FreeBSD is broke when it comes to more then one APICs. This was first
discovered a few weeks ago. Attached is the patch to patch 4.0-RELEASE to
work with multiple APICs.
Regards,
Eric Duncan
eric@cdc.net
-----Original Message-----
From: owner-freebsd-smp@FreeBSD.ORG
[mailto:owner-freebsd-smp@FreeBSD.ORG]On Behalf Of Charles Henrich
Sent: Thursday, May 04, 2000 6:30 PM
To: freebsd-smp@freebsd.org
Subject: i840 Tyan Thunder
When I boot up 4.0-REL it just hangs after plip initialization. Has anyone
seen anything like this? I have NAPIC=2 and NBUS=6
-Crh
Charles Henrich Manex Visual Effects henrich@sigbus.com
http://www.sigbus.com/~henrich
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name="smp.patch"
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filename="smp.patch"
Index: pmap.c=0A=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A=
RCS file: /usr/src/sys/i386/i386/pmap.c,v=0A=
retrieving revision 1.252=0A=
diff -u -r1.252 pmap.c=0A=
--- pmap.c 2000/03/16 08:51:49 1.252=0A=
+++ pmap.c 2000/04/20 03:14:48=0A=
@@ -426,9 +426,10 @@=0A=
for (j =3D 0; j < mp_napics; j++) {=0A=
/* same page frame as a previous IO apic? */=0A=
if (((vm_offset_t)SMPpt[NPTEPG-2-j] & PG_FRAME) =3D=3D=0A=
- (io_apic_address[0] & PG_FRAME)) {=0A=
+ (io_apic_address[i] & PG_FRAME)) {=0A=
ioapic[i] =3D (ioapic_t *)((u_int)SMP_prvspace=0A=
- + (NPTEPG-2-j)*PAGE_SIZE);=0A=
+ + (NPTEPG-2-j)*PAGE_SIZE=0A=
+ + (io_apic_address[i] & PAGE_MASK));=0A=
break;=0A=
}=0A=
/* use this slot if available */=0A=
@@ -436,7 +437,8 @@=0A=
SMPpt[NPTEPG-2-j] =3D (pt_entry_t)(PG_V | PG_RW |=0A=
pgeflag | (io_apic_address[i] & PG_FRAME));=0A=
ioapic[i] =3D (ioapic_t *)((u_int)SMP_prvspace=0A=
- + (NPTEPG-2-j)*PAGE_SIZE);=0A=
+ + (NPTEPG-2-j)*PAGE_SIZE=0A=
+ + (io_apic_address[i] & PAGE_MASK));=0A=
break;=0A=
}=0A=
}=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
=0A=
/* To issue this patch, type: patch -p0 < smp.patch=0A=
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