Hereby i want to confirm Henrik findings: As he mentionned it seems that there is no HW change between HT enabled and non HT enabled 56XX. I have today flashed my bios with Henrik Hybrid one but on a non HT p4 ( 2.4 C ). stupid hey ! Love to live dangerously.
So here are the facts. No xtra heat, no unstablility, and some very interesting messages confirming once again that ALL P4 are HT enabled, and that the only thing that makes them see it is the Intel (crypted) microcode resident in the CPU. If we had a way to chnage the microcodes to a HT aware one, even old 1.8 Ghz core p4 could be HT. But intel sure made sure no such tweaks were possible. Here is Debian linux with a kernel 2.6.0-test-11 patched reiser4 with all SMP / SMT / HT settings enabled, and here are the interesting reports:
Linux version 2.6.0-test11-rfs4 (root@screamer.easynix.net) (gcc version 3.3.2 (Debian)) #1 Tue Dec 2 21:09:08 CET 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fef0000 (usable)
BIOS-e820: 000000001fef0000 - 000000001fefb000 (ACPI data)
BIOS-e820: 000000001fefb000 - 000000001ff00000 (ACPI NVS)
BIOS-e820: 000000001ff00000 - 000000001ff80000 (usable)
BIOS-e820: 000000001ff80000 - 0000000020000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved)
BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
511MB LOWMEM available.
found SMP MP-table at 000f62e0
hm, page 000f6000 reserved twice.
hm, page 000f7000 reserved twice.
hm, page 0009f000 reserved twice.
hm, page 000a0000 reserved twice.
On node 0 totalpages: 130944
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 126848 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
DMI present.
ACPI: RSDP (v000 PTLTD ) @ 0x000f6320
ACPI: RSDT (v001 PTLTD Sheeks 0x06040000 LTP 0x00000000) @ 0x1fef6ca9
ACPI: FADT (v001 Clevo 845MP 0x06040000 PTL 0x00000050) @ 0x1fefaf2d
ACPI: BOOT (v001 PTLTD $SBFTBL$ 0x06040000 LTP 0x00000001) @ 0x1fefafa1
ACPI: DSDT (v001 INTEL 845M 0x06040000 MSFT 0x0100000d) @ 0x00000000
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
SMP mptable: bad signature [0x0]!
BIOS bug, MP table errors detected!...
... disabling SMP support. (tell your hw vendor)
Building zonelist for node : 0
Well, just got to get a 3.06 HT for this baby.....
Henrik, thks again, u rock.
So here are the facts. No xtra heat, no unstablility, and some very interesting messages confirming once again that ALL P4 are HT enabled, and that the only thing that makes them see it is the Intel (crypted) microcode resident in the CPU. If we had a way to chnage the microcodes to a HT aware one, even old 1.8 Ghz core p4 could be HT. But intel sure made sure no such tweaks were possible. Here is Debian linux with a kernel 2.6.0-test-11 patched reiser4 with all SMP / SMT / HT settings enabled, and here are the interesting reports:
Linux version 2.6.0-test11-rfs4 (root@screamer.easynix.net) (gcc version 3.3.2 (Debian)) #1 Tue Dec 2 21:09:08 CET 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f000 (usable)
BIOS-e820: 000000000009f000 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fef0000 (usable)
BIOS-e820: 000000001fef0000 - 000000001fefb000 (ACPI data)
BIOS-e820: 000000001fefb000 - 000000001ff00000 (ACPI NVS)
BIOS-e820: 000000001ff00000 - 000000001ff80000 (usable)
BIOS-e820: 000000001ff80000 - 0000000020000000 (reserved)
BIOS-e820: 00000000fec00000 - 00000000fec10000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ff800000 - 00000000ffc00000 (reserved)
BIOS-e820: 00000000fff00000 - 0000000100000000 (reserved)
511MB LOWMEM available.
found SMP MP-table at 000f62e0
hm, page 000f6000 reserved twice.
hm, page 000f7000 reserved twice.
hm, page 0009f000 reserved twice.
hm, page 000a0000 reserved twice.
On node 0 totalpages: 130944
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 126848 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
DMI present.
ACPI: RSDP (v000 PTLTD ) @ 0x000f6320
ACPI: RSDT (v001 PTLTD Sheeks 0x06040000 LTP 0x00000000) @ 0x1fef6ca9
ACPI: FADT (v001 Clevo 845MP 0x06040000 PTL 0x00000050) @ 0x1fefaf2d
ACPI: BOOT (v001 PTLTD $SBFTBL$ 0x06040000 LTP 0x00000001) @ 0x1fefafa1
ACPI: DSDT (v001 INTEL 845M 0x06040000 MSFT 0x0100000d) @ 0x00000000
Intel MultiProcessor Specification v1.4
Virtual Wire compatibility mode.
SMP mptable: bad signature [0x0]!
BIOS bug, MP table errors detected!...
... disabling SMP support. (tell your hw vendor)
Building zonelist for node : 0
Well, just got to get a 3.06 HT for this baby.....
Henrik, thks again, u rock.
