Hello,
I have kernel 2.4.20 with a single P4 3.06Ghz CPU and Asus P4G8X motherboard
(with the Intel E7205) Chipset. I have enabled Hyperthreading in the BIOS options,
compiled in SMP & ACPI support, and also tried adding "acpismp=force" to my lilo
kernel cmdline, but it just doesn't seem to detect the second Logical CPU. My
current theory is that this is bcos Linux expects the motherboard to be an SMP
item (as with the Xeon boards) but this board is a Single processor board, ansd
doesn't have an MP table, but the cpu info is held in the ACPI tables.?!?
I have tried installing 2.5.65 but can't get past the compile due to compile-time
errors... Is this a known problem? SHall i just disable Hyperthreading until a new
kernel release?
Thanks,
James
You need to apply the ACPI patch: http://sourceforge.net/projects/acpi and *configure* APIC.
The 2.4 kernel depends on the MPS table for all but logical processors. If MPS table is not present, it will fall back to UP.
Thanks,
Jun
> -----Original Message-----
> From: James Wright [mailto:[email protected]]
> Sent: Wednesday, March 19, 2003 5:34 PM
> To: [email protected]
> Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
>
> Hello,
>
> I have kernel 2.4.20 with a single P4 3.06Ghz CPU and Asus P4G8X
> motherboard
> (with the Intel E7205) Chipset. I have enabled Hyperthreading in the BIOS
> options,
> compiled in SMP & ACPI support, and also tried adding "acpismp=force" to
> my lilo
> kernel cmdline, but it just doesn't seem to detect the second Logical CPU.
> My
> current theory is that this is bcos Linux expects the motherboard to be an
> SMP
> item (as with the Xeon boards) but this board is a Single processor board,
> ansd
> doesn't have an MP table, but the cpu info is held in the ACPI tables.?!?
>
> I have tried installing 2.5.65 but can't get past the compile due to
> compile-time
> errors... Is this a known problem? SHall i just disable Hyperthreading
> until a new
> kernel release?
>
>
> Thanks,
> James
>
>
>
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
Sorry for the typo. APIC -> ACPI.
> -----Original Message-----
> From: Nakajima, Jun
> Sent: Wednesday, March 19, 2003 6:51 PM
> To: James Wright; [email protected]
> Subject: RE: P4 3.06Ghz Hyperthreading with 2.4.20?
>
> You need to apply the ACPI patch: http://sourceforge.net/projects/acpi and
> *configure* APIC.
>
> The 2.4 kernel depends on the MPS table for all but logical processors. If
> MPS table is not present, it will fall back to UP.
>
> Thanks,
> Jun
>
> > -----Original Message-----
> > From: James Wright [mailto:[email protected]]
> > Sent: Wednesday, March 19, 2003 5:34 PM
> > To: [email protected]
> > Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
> >
> > Hello,
> >
> > I have kernel 2.4.20 with a single P4 3.06Ghz CPU and Asus P4G8X
> > motherboard
> > (with the Intel E7205) Chipset. I have enabled Hyperthreading in the
> BIOS
> > options,
> > compiled in SMP & ACPI support, and also tried adding "acpismp=force" to
> > my lilo
> > kernel cmdline, but it just doesn't seem to detect the second Logical
> CPU.
> > My
> > current theory is that this is bcos Linux expects the motherboard to be
> an
> > SMP
> > item (as with the Xeon boards) but this board is a Single processor
> board,
> > ansd
> > doesn't have an MP table, but the cpu info is held in the ACPI
> tables.?!?
> >
> > I have tried installing 2.5.65 but can't get past the compile due to
> > compile-time
> > errors... Is this a known problem? SHall i just disable Hyperthreading
> > until a new
> > kernel release?
> >
> >
> > Thanks,
> > James
> >
> >
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel"
> in
> > the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
So i can apply the ACPI patch to 2.4.20, and it will work, even though my motherboard BIOS
doesn't provide the MPS table? Do i still need to use "acpismp=force" option? What do you mean
by *configuring* acpi, do i need the "acpid" or other resources, than just enabling it?
Thanks,
James
On Wed, 19 Mar 2003 18:50:59 -0800
"Nakajima, Jun" <[email protected]> wrote:
> You need to apply the ACPI patch: http://sourceforge.net/projects/acpi and *configure* APIC.
>
> The 2.4 kernel depends on the MPS table for all but logical processors. If MPS table is not present, it will fall back to UP.
>
> Thanks,
> Jun
>
> > -----Original Message-----
> > From: James Wright [mailto:[email protected]]
> > Sent: Wednesday, March 19, 2003 5:34 PM
> > To: [email protected]
> > Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
> >
> > Hello,
> >
> > I have kernel 2.4.20 with a single P4 3.06Ghz CPU and Asus P4G8X
> > motherboard
> > (with the Intel E7205) Chipset. I have enabled Hyperthreading in the BIOS
> > options,
> > compiled in SMP & ACPI support, and also tried adding "acpismp=force" to
> > my lilo
> > kernel cmdline, but it just doesn't seem to detect the second Logical CPU.
> > My
> > current theory is that this is bcos Linux expects the motherboard to be an
> > SMP
> > item (as with the Xeon boards) but this board is a Single processor board,
> > ansd
> > doesn't have an MP table, but the cpu info is held in the ACPI tables.?!?
> >
> > I have tried installing 2.5.65 but can't get past the compile due to
> > compile-time
> > errors... Is this a known problem? SHall i just disable Hyperthreading
> > until a new
> > kernel release?
> >
> >
> > Thanks,
> > James
> >
> >
> >
> > -
> > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> > the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
> -
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
> From: James Wright [mailto:[email protected]]
> So i can apply the ACPI patch to 2.4.20, and it will work,
> even though my motherboard BIOS
> doesn't provide the MPS table?
Yes, because ACPI uses a different table.
> Do i still need to use
> "acpismp=force" option?
Nope.
> What do you mean
> by *configuring* acpi
Configuring it into your kernel, presumably, using make menuconfig.
> do i need the "acpid" or other
> resources, than just enabling it?
Nope, all the SMP detection stuff is in the kernel.
Regards -- Andy
>
> Thanks,
> James
>
>
> On Wed, 19 Mar 2003 18:50:59 -0800
> "Nakajima, Jun" <[email protected]> wrote:
>
> > You need to apply the ACPI patch:
> http://sourceforge.net/projects/acpi and *configure* APIC.
> >
> > The 2.4 kernel depends on the MPS table for all but logical
> processors. If MPS table is not present, it will fall back to UP.
> >
> > Thanks,
> > Jun
> >
> > > -----Original Message-----
> > > From: James Wright [mailto:[email protected]]
> > > Sent: Wednesday, March 19, 2003 5:34 PM
> > > To: [email protected]
> > > Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
> > >
> > > Hello,
> > >
> > > I have kernel 2.4.20 with a single P4 3.06Ghz CPU and
> Asus P4G8X
> > > motherboard
> > > (with the Intel E7205) Chipset. I have enabled
> Hyperthreading in the BIOS
> > > options,
> > > compiled in SMP & ACPI support, and also tried adding
> "acpismp=force" to
> > > my lilo
> > > kernel cmdline, but it just doesn't seem to detect the
> second Logical CPU.
> > > My
> > > current theory is that this is bcos Linux expects the
> motherboard to be an
> > > SMP
> > > item (as with the Xeon boards) but this board is a Single
> processor board,
> > > ansd
> > > doesn't have an MP table, but the cpu info is held in the
> ACPI tables.?!?
> > >
> > > I have tried installing 2.5.65 but can't get past the
> compile due to
> > > compile-time
> > > errors... Is this a known problem? SHall i just disable
> Hyperthreading
> > > until a new
> > > kernel release?
> > >
> > >
> > > Thanks,
> > > James
> > >
> > >
> > >
> > > -
> > > To unsubscribe from this list: send the line "unsubscribe
> linux-kernel" in
> > > the body of a message to [email protected]
> > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > > Please read the FAQ at http://www.tux.org/lkml/
> > -
> > To unsubscribe from this list: send the line "unsubscribe
> linux-kernel" in
> > the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
> >
> -
> To unsubscribe from this list: send the line "unsubscribe
> linux-kernel" in
> the body of a message to [email protected]
> More majordomo info at http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
>
I have patched my 2.4.20 kernel with the relevant ACPI patch, and now it suing ACPI
it detects the 2 Logical CPU's BUT it still disables SMP and /proc/cpuinfo only shows one processor... Sorry for the including this but here is a extract "dmesg":
Linux version 2.4.20 (root@neutrino) (gcc version 3.2.2) #1 SMP Thu Mar 20 21:02:11 GMT 2003
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000f0000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 000000001fffc000 (usable)
BIOS-e820: 000000001fffc000 - 000000001ffff000 (ACPI data)
BIOS-e820: 000000001ffff000 - 0000000020000000 (ACPI NVS)
BIOS-e820: 00000000fec00000 - 00000000fec01000 (reserved)
BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
BIOS-e820: 00000000ffff0000 - 0000000100000000 (reserved)
511MB LOWMEM available.
On node 0 totalpages: 131068
zone(0): 4096 pages.
zone(1): 126972 pages.
zone(2): 0 pages.
ACPI: RSDP (v000 ASUS ) @ 0x000f51e0
ACPI: RSDT (v001 ASUS P4G8X 16944.11825) @ 0x1fffc000
ACPI: FADT (v001 ASUS P4G8X 16944.11825) @ 0x1fffc0c0
ACPI: BOOT (v001 ASUS P4G8X 16944.11825) @ 0x1fffc030
ACPI: MADT (v001 ASUS P4G8X 16944.11825) @ 0x1fffc058
ACPI: DSDT (v001 ASUS P4G8X 00000.04096) @ 0x00000000
ACPI: BIOS passes blacklist
ACPI: Local APIC address 0xfee00000
ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
Processor #0 Pentium 4(tm) XEON(tm) APIC version 16
ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
Processor #1 Pentium 4(tm) XEON(tm) APIC version 16
Kernel command line: BOOT_IMAGE=linux ro root=302 acpismp=force
Found and enabled local APIC!
Initializing CPU#0
Detected 3066.823 MHz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 6121.06 BogoMIPS
Memory: 515648k/524272k available (1439k kernel code, 8236k reserved, 364k data, 288k init, 0k highmem)
Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode cache hash table entries: 32768 (order: 6, 262144 bytes)
Mount-cache hash table entries: 8192 (order: 4, 65536 bytes)
Buffer-cache hash table entries: 32768 (order: 5, 131072 bytes)
Page-cache hash table entries: 131072 (order: 7, 524288 bytes)
CPU: L1 I cache: 0K, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Physical Processor ID: 0
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
mtrr: v1.40 (20010327) Richard Gooch ([email protected])
mtrr: detected mtrr type: Intel
CPU: L1 I cache: 0K, L1 D cache: 8K
CPU: L2 cache: 512K
CPU: Physical Processor ID: 0
Intel machine check reporting enabled on CPU#0.
CPU: After generic, caps: bfebfbff 00000000 00000000 00000000
CPU: Common caps: bfebfbff 00000000 00000000 00000000
CPU0: Intel(R) Pentium(R) 4 CPU 3.06GHz stepping 07
per-CPU timeslice cutoff: 1462.78 usecs.
SMP motherboard not detected.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 3066.8182 MHz.
..... host bus clock speed is 133.3398 MHz.
cpu: 0, clocks: 1333398, slice: 666699
CPU0<T0:1333392,T1:666688,D:5,S:666699,C:1333398>
Waiting on wait_init_idle (map = 0x0)
All processors have done init_idle
PCI: PCI BIOS revision 2.10 entry at 0xf1db0, last bus=2
On Thu, 20 Mar 2003 09:11:10 -0800
"Grover, Andrew" <[email protected]> wrote:
> > From: James Wright [mailto:[email protected]]
> > So i can apply the ACPI patch to 2.4.20, and it will work,
> > even though my motherboard BIOS
> > doesn't provide the MPS table?
>
> Yes, because ACPI uses a different table.
>
> > Do i still need to use
> > "acpismp=force" option?
>
> Nope.
>
> > What do you mean
> > by *configuring* acpi
>
> Configuring it into your kernel, presumably, using make menuconfig.
>
> > do i need the "acpid" or other
> > resources, than just enabling it?
>
> Nope, all the SMP detection stuff is in the kernel.
>
> Regards -- Andy
>
> >
> > Thanks,
> > James
> >
> >
> > On Wed, 19 Mar 2003 18:50:59 -0800
> > "Nakajima, Jun" <[email protected]> wrote:
> >
> > > You need to apply the ACPI patch:
> > http://sourceforge.net/projects/acpi and *configure* APIC.
> > >
> > > The 2.4 kernel depends on the MPS table for all but logical
> > processors. If MPS table is not present, it will fall back to UP.
> > >
> > > Thanks,
> > > Jun
> > >
> > > > -----Original Message-----
> > > > From: James Wright [mailto:[email protected]]
> > > > Sent: Wednesday, March 19, 2003 5:34 PM
> > > > To: [email protected]
> > > > Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
> > > >
> > > > Hello,
> > > >
> > > > I have kernel 2.4.20 with a single P4 3.06Ghz CPU and
> > Asus P4G8X
> > > > motherboard
> > > > (with the Intel E7205) Chipset. I have enabled
> > Hyperthreading in the BIOS
> > > > options,
> > > > compiled in SMP & ACPI support, and also tried adding
> > "acpismp=force" to
> > > > my lilo
> > > > kernel cmdline, but it just doesn't seem to detect the
> > second Logical CPU.
> > > > My
> > > > current theory is that this is bcos Linux expects the
> > motherboard to be an
> > > > SMP
> > > > item (as with the Xeon boards) but this board is a Single
> > processor board,
> > > > ansd
> > > > doesn't have an MP table, but the cpu info is held in the
> > ACPI tables.?!?
> > > >
> > > > I have tried installing 2.5.65 but can't get past the
> > compile due to
> > > > compile-time
> > > > errors... Is this a known problem? SHall i just disable
> > Hyperthreading
> > > > until a new
> > > > kernel release?
> > > >
> > > >
> > > > Thanks,
> > > > James
> > > >
> > > >
> > > >
> > > > -
> > > > To unsubscribe from this list: send the line "unsubscribe
> > linux-kernel" in
> > > > the body of a message to [email protected]
> > > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > > > Please read the FAQ at http://www.tux.org/lkml/
> > > -
> > > To unsubscribe from this list: send the line "unsubscribe
> > linux-kernel" in
> > > the body of a message to [email protected]
> > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > > Please read the FAQ at http://www.tux.org/lkml/
> > >
> > -
> > To unsubscribe from this list: send the line "unsubscribe
> > linux-kernel" in
> > the body of a message to [email protected]
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > Please read the FAQ at http://www.tux.org/lkml/
> >
>
On 03.20, James Wright wrote:
>
> I have patched my 2.4.20 kernel with the relevant ACPI patch, and now it suing ACPI
> it detects the 2 Logical CPU's BUT it still disables SMP and /proc/cpuinfo only shows one processor... Sorry for the including this but here is a extract "dmesg":
>
[...]
> SMP motherboard not detected.
Check if your bios has something like 'Enable ACPI register'. My 400GX has it.
--
J.A. Magallon <[email protected]> \ Software is like sex:
werewolf.able.es \ It's better when it's free
Mandrake Linux release 9.1 (Bamboo) for i586
Linux 2.4.21-pre5-jam0 (gcc 3.2.2 (Mandrake Linux 9.1 3.2.2-3mdk))
> From: James Wright [mailto:[email protected]]
> ACPI: Local APIC address 0xfee00000
> ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> Processor #0 Pentium 4(tm) XEON(tm) APIC version 16
> ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
> Processor #1 Pentium 4(tm) XEON(tm) APIC version 16
There should be some messages about IO APICs right here. To be SMP, you
need IO APICs.
If you did the ACPI cpu enumeration only, please try the full ACPI
support. That is the only reason I can think of (except for !CONFIG_SMP)
as to why the IO APIC(s) could be overlooked.
> Kernel command line: BOOT_IMAGE=linux ro root=302 acpismp=force
Don't need acpismp=force, btw. With the patch off sf.net it is on by
default - you can use acpi=off to disable it, though. ;-)
Regards -- Andy
> On Thu, 20 Mar 2003 09:11:10 -0800
> "Grover, Andrew" <[email protected]> wrote:
>
> > > From: James Wright [mailto:[email protected]]
> > > So i can apply the ACPI patch to 2.4.20, and it will work,
> > > even though my motherboard BIOS
> > > doesn't provide the MPS table?
> >
> > Yes, because ACPI uses a different table.
> >
> > > Do i still need to use
> > > "acpismp=force" option?
> >
> > Nope.
> >
> > > What do you mean
> > > by *configuring* acpi
> >
> > Configuring it into your kernel, presumably, using make menuconfig.
> >
> > > do i need the "acpid" or other
> > > resources, than just enabling it?
> >
> > Nope, all the SMP detection stuff is in the kernel.
> >
> > Regards -- Andy
> >
> > >
> > > Thanks,
> > > James
> > >
> > >
> > > On Wed, 19 Mar 2003 18:50:59 -0800
> > > "Nakajima, Jun" <[email protected]> wrote:
> > >
> > > > You need to apply the ACPI patch:
> > > http://sourceforge.net/projects/acpi and *configure* APIC.
> > > >
> > > > The 2.4 kernel depends on the MPS table for all but logical
> > > processors. If MPS table is not present, it will fall back to UP.
> > > >
> > > > Thanks,
> > > > Jun
> > > >
> > > > > -----Original Message-----
> > > > > From: James Wright [mailto:[email protected]]
> > > > > Sent: Wednesday, March 19, 2003 5:34 PM
> > > > > To: [email protected]
> > > > > Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
> > > > >
> > > > > Hello,
> > > > >
> > > > > I have kernel 2.4.20 with a single P4 3.06Ghz CPU and
> > > Asus P4G8X
> > > > > motherboard
> > > > > (with the Intel E7205) Chipset. I have enabled
> > > Hyperthreading in the BIOS
> > > > > options,
> > > > > compiled in SMP & ACPI support, and also tried adding
> > > "acpismp=force" to
> > > > > my lilo
> > > > > kernel cmdline, but it just doesn't seem to detect the
> > > second Logical CPU.
> > > > > My
> > > > > current theory is that this is bcos Linux expects the
> > > motherboard to be an
> > > > > SMP
> > > > > item (as with the Xeon boards) but this board is a Single
> > > processor board,
> > > > > ansd
> > > > > doesn't have an MP table, but the cpu info is held in the
> > > ACPI tables.?!?
> > > > >
> > > > > I have tried installing 2.5.65 but can't get past the
> > > compile due to
> > > > > compile-time
> > > > > errors... Is this a known problem? SHall i just disable
> > > Hyperthreading
> > > > > until a new
> > > > > kernel release?
> > > > >
> > > > >
> > > > > Thanks,
> > > > > James
> > > > >
> > > > >
> > > > >
> > > > > -
> > > > > To unsubscribe from this list: send the line "unsubscribe
> > > linux-kernel" in
> > > > > the body of a message to [email protected]
> > > > > More majordomo info at
> http://vger.kernel.org/majordomo-info.html
> > > > > Please
> read the FAQ at http://www.tux.org/lkml/
> > > > -
> > > > To unsubscribe from this list: send the line "unsubscribe
> > > linux-kernel" in
> > > > the body of a message to [email protected]
> > > > More majordomo info at
> http://vger.kernel.org/majordomo-info.html
> > > > Please read
> the FAQ at http://www.tux.org/lkml/
> > > >
> > > -
> > > To unsubscribe from this list: send the line "unsubscribe
> > > linux-kernel" in
> > > the body of a message to [email protected]
> > > More majordomo info at http://vger.kernel.org/majordomo-info.html
> > > Please read the FAQ at http://www.tux.org/lkml/
> > >
> >
>
Problem Solved!!! I had foolishly enabled ACPI CPU Enumeration Only, i switched this off
and now all is working!!! wow... checkout those BogoMIPS;
CPU0: Intel(R) Pentium(R) 4 CPU 3.06GHz stepping 07
CPU1: Intel(R) Pentium(R) 4 CPU 3.06GHz stepping 07
Total of 2 processors activated (12242.12 BogoMIPS).
Thanks for your quick response,
James
On Thu, 20 Mar 2003 14:32:00 -0800
"Grover, Andrew" <[email protected]> wrote:
>
> > From: James Wright [mailto:[email protected]]
> > ACPI: Local APIC address 0xfee00000
> > ACPI: LAPIC (acpi_id[0x00] lapic_id[0x00] enabled)
> > Processor #0 Pentium 4(tm) XEON(tm) APIC version 16
> > ACPI: LAPIC (acpi_id[0x01] lapic_id[0x01] enabled)
> > Processor #1 Pentium 4(tm) XEON(tm) APIC version 16
>
> There should be some messages about IO APICs right here. To be SMP, you
> need IO APICs.
>
> If you did the ACPI cpu enumeration only, please try the full ACPI
> support. That is the only reason I can think of (except for !CONFIG_SMP)
> as to why the IO APIC(s) could be overlooked.
>
> > Kernel command line: BOOT_IMAGE=linux ro root=302 acpismp=force
>
> Don't need acpismp=force, btw. With the patch off sf.net it is on by
> default - you can use acpi=off to disable it, though. ;-)
>
> Regards -- Andy
>
> > On Thu, 20 Mar 2003 09:11:10 -0800
> > "Grover, Andrew" <[email protected]> wrote:
> >
> > > > From: James Wright [mailto:[email protected]]
> > > > So i can apply the ACPI patch to 2.4.20, and it will work,
> > > > even though my motherboard BIOS
> > > > doesn't provide the MPS table?
> > >
> > > Yes, because ACPI uses a different table.
> > >
> > > > Do i still need to use
> > > > "acpismp=force" option?
> > >
> > > Nope.
> > >
> > > > What do you mean
> > > > by *configuring* acpi
> > >
> > > Configuring it into your kernel, presumably, using make menuconfig.
> > >
> > > > do i need the "acpid" or other
> > > > resources, than just enabling it?
> > >
> > > Nope, all the SMP detection stuff is in the kernel.
> > >
> > > Regards -- Andy
> > >
> > > >
> > > > Thanks,
> > > > James
> > > >
> > > >
> > > > On Wed, 19 Mar 2003 18:50:59 -0800
> > > > "Nakajima, Jun" <[email protected]> wrote:
> > > >
> > > > > You need to apply the ACPI patch:
> > > > http://sourceforge.net/projects/acpi and *configure* APIC.
> > > > >
> > > > > The 2.4 kernel depends on the MPS table for all but logical
> > > > processors. If MPS table is not present, it will fall back to UP.
> > > > >
> > > > > Thanks,
> > > > > Jun
> > > > >
> > > > > > -----Original Message-----
> > > > > > From: James Wright [mailto:[email protected]]
> > > > > > Sent: Wednesday, March 19, 2003 5:34 PM
> > > > > > To: [email protected]
> > > > > > Subject: P4 3.06Ghz Hyperthreading with 2.4.20?
> > > > > >
> > > > > > Hello,
> > > > > >
> > > > > > I have kernel 2.4.20 with a single P4 3.06Ghz CPU and
> > > > Asus P4G8X
> > > > > > motherboard
> > > > > > (with the Intel E7205) Chipset. I have enabled
> > > > Hyperthreading in the BIOS
> > > > > > options,
> > > > > > compiled in SMP & ACPI support, and also tried adding
> > > > "acpismp=force" to
> > > > > > my lilo
> > > > > > kernel cmdline, but it just doesn't seem to detect the
> > > > second Logical CPU.
> > > > > > My
> > > > > > current theory is that this is bcos Linux expects the
> > > > motherboard to be an
> > > > > > SMP
> > > > > > item (as with the Xeon boards) but this board is a Single
> > > > processor board,
> > > > > > ansd
> > > > > > doesn't have an MP table, but the cpu info is held in the
> > > > ACPI tables.?!?
> > > > > >
> > > > > > I have tried installing 2.5.65 but can't get past the
> > > > compile due to
> > > > > > compile-time
> > > > > > errors... Is this a known problem? SHall i just disable
> > > > Hyperthreading
> > > > > > until a new
> > > > > > kernel release?
> > > > > >
> > > > > >
> > > > > > Thanks,
> > > > > > James
> > > > > >
> > > > > >
> > > > > >
> > > > > > -
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