Date: Mon, 30 Sep 2002 15:49:58 +0800 From: "j l" <jsli2002@msn.com> To: freebsd-smp@freebsd.org Subject: Single processor hyperthreading problem Message-ID: <F169nPSSutiXuGPETXd00000871@hotmail.com>
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Hi,
We have a Intel E7500-based mainboard and two P4 processors on it.
When it runs with one processor and hyperthreading off, or two
processors and hypperthreading on, everything is fine. However
when I turn off either multiprocessor or hyperthreading options
in BIOS setting, the SMP kernel will not be able to boot.
System config:
FreeBSD 4.6.2-R
GENERIC kernel config with SMP and APIC options
The behavior:
With one processor and hyperthreading turned on, the kernel
hung at the very start with the following message:
panic: pmap_bootstrap: no local apic!
mp_lock = 00000008; cpuid = 0; lapic.id = 00000000
uptime: 0s
With two processors and hyperthreading turned off, the kernel
began probing devices, and hung at this spot:
APIC_IO: Testing 8254 interrupt delivery
It looks like the mainboard or BIOS has some implementation
problem, any suggestions?
And this is the mptable when booting with both multiprocessor and
hyperthreading turned on:
===============================================================================
MPTable, version 2.0.15
-------------------------------------------------------------------------------
MP Floating Pointer Structure:
location: EBDA
physical address: 0x0009cc30
signature: '_MP_'
length: 16 bytes
version: 1.1
checksum: 0x0c
mode: Virtual Wire
-------------------------------------------------------------------------------
MP Config Table Header:
physical address: 0x0009eea0
signature: 'PCMP'
base table length: 476
version: 1.1
checksum: 0xd4
OEM ID: 'OEM ID '
Product ID: 'PRODUCT ID '
OEM table pointer: 0x00000000
OEM table size: 0
entry count: 48
local APIC address: 0xfee00000
extended table length: 0
extended table checksum: 0
-------------------------------------------------------------------------------
MP Config Base Table Entries:
--
Processors: APIC ID Version State Family Model Step
Flags
0 0x14 BSP, usable 15 2 4
0x3febfbff
1 0x14 AP, usable 15 2 4
0x3febfbff
6 0x14 AP, usable 15 2 4
0x3febfbff
7 0x14 AP, usable 15 2 4
0x3febfbff
--
Bus: Bus ID Type
0 PCI
1 PCI
2 PCI
3 PCI
4 PCI
5 PCI
6 PCI
7 PCI
8 ISA
--
I/O APICs: APIC ID Version State Address
14 0x20 usable 0xfec00000
13 0x20 usable 0xfec80000
12 0x20 usable 0xfec80400
11 0x20 usable 0xfec82000
10 0x20 usable 0xfec82400
--
I/O Ints: Type Polarity Trigger Bus ID IRQ APIC ID
PIN#
ExtINT active-hi edge 8 0 14
0
INT active-hi edge 8 1 14
1
INT active-hi edge 8 0 14
2
INT active-hi edge 8 3 14
3
INT active-hi edge 8 4 14
4
INT active-hi edge 8 5 14
5
INT active-hi edge 8 6 14
6
INT active-lo level 8 7 14
7
INT active-hi edge 8 8 14
8
INT active-lo level 8 9 14
9
INT active-lo level 8 10 14
10
INT active-hi edge 8 11 14
11
INT active-hi edge 8 12 14
12
INT active-hi edge 8 13 14
13
INT active-hi edge 8 14 14
14
INT active-hi edge 8 15 14
15
INT active-lo level 0 29:A 14
16
INT active-lo level 0 29:B 14
19
INT active-lo level 0 29:C 14
18
INT active-lo level 0 31:A 14
16
INT active-lo level 0 31:B 14
17
INT active-lo level 2 31:A 13
23
INT active-lo level 3 1:A 12
0
INT active-lo level 3 1:B 12
1
INT active-lo level 5 1:A 11
0
INT active-lo level 5 31:A 11
23
INT active-lo level 6 31:A 10
23
INT active-lo level 7 0:A 14
16
--
Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID
PIN#
ExtINT active-hi edge 8 0 255
0
NMI active-hi edge 0 0:A 255
1
===============================================================================
jsli.
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