Re: P4/HT and 2.6 kernels...

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Randy.Dunlap wrote:
| On Wed, 06 Oct 2004 15:59:56 -0700 Tobias Rice wrote:
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| | I have a single cpu laptop P4 with HT. I assumed that when compiling I'd
| | select SMP and Hyperthreading Support, but it gacks when I try to boot
| | from the new kernel. Am I wrong to assume I'd use SMP?
| | I'm using the 2.6.8.1 from kernel.org and the ck8 patch.
|
| Yes, you need SMP for HT.  Can you try it without the ck patch?
| or try 2.6.9-rc3.
|
| Define gacks.  any messages?
|
By gack I mean all I see is the Loading Linux.....
...and the screen goes black.

I tried many other configurations w/ck and w/o ck and 2.6.9-rc3.
2.6.9-rc3 actully booted once and saw "both" cpus. But my nvida driver
won't compile under 2.6.9-rc3 :(

Some errors I saw along the way:
Oct  6 21:24:16 localhost kernel: Dell Inspiron with broken BIOS
detected. Refusing to enable the local APIC.
Oct  6 21:24:16 localhost kernel: ACPI: RSDP (v000 DELL
~                     ) @ 0x000fdea0
Oct  6 21:24:16 localhost kernel: ACPI: RSDT (v001 DELL    CPi R
0x27d4071e ASL  0x00000061) @ 0x1fff0000
Oct  6 21:24:16 localhost kernel: ACPI: FADT (v001 DELL    CPi R
0x27d4071e ASL  0x00000061) @ 0x1fff0400
Oct  6 21:24:16 localhost kernel: ACPI: MADT (v001 DELL    CPi R
0x27d4071e ASL  0x00000047) @ 0x1fff0c00
Oct  6 21:24:16 localhost kernel: ACPI: DSDT (v001 INT430 SYSFexxx
0x00001001 MSFT 0x0100000e) @ 0x00000000
Oct  6 21:24:16 localhost kernel: ACPI: PM-Timer IO Port: 0x1008
Oct  6 21:24:16 localhost kernel: ACPI: Local APIC address 0xfee00000
Oct  6 21:24:16 localhost kernel: ACPI: LAPIC (acpi_id[0x00]
lapic_id[0x00] enabled)
Oct  6 21:24:16 localhost kernel: Processor #0 15:2 APIC version 20
Oct  6 21:24:16 localhost kernel: ACPI: LAPIC (acpi_id[0x01]
lapic_id[0x01] enabled)
Oct  6 21:24:16 localhost kernel: Processor #1 15:2 APIC version 20
Oct  6 21:24:16 localhost kernel: WARNING: NR_CPUS limit of 1 reached.
Processor ignored.
Oct  6 21:24:16 localhost kernel: ACPI: LAPIC_NMI (acpi_id[0x00] high
edge lint[0x1])
Oct  6 21:24:16 localhost kernel: ACPI: LAPIC_NMI (acpi_id[0x01] high
edge lint[0x1])
Oct  6 21:24:16 localhost kernel: ACPI: Skipping IOAPIC probe due to
'noapic' option.
Oct  6 21:24:16 localhost kernel: Built 1 zonelists
Oct  6 21:24:16 localhost kernel: Kernel command line:
BOOT_IMAGE=LinuxOLD ro root=1604 noapic video=vesa
Oct  6 21:24:16 localhost kernel: Initializing CPU#0
Oct  6 21:24:16 localhost kernel: PID hash table entries: 2048 (order
11: 16384 bytes)
Oct  6 21:24:16 localhost kernel: Detected 3190.523 MHz processor.
Oct  6 21:24:16 localhost kernel: Using pmtmr for high-res timesource
Oct  6 21:24:16 localhost kernel: Console: colour dummy device 80x25
Oct  6 21:24:16 localhost kernel: Dentry cache hash table entries:
131072 (order: 7, 524288 bytes)
Oct  6 21:24:16 localhost kernel: Inode-cache hash table entries: 65536
(order: 6, 262144 bytes)
Oct  6 21:24:16 localhost kernel: Memory: 513948k/524092k available
(2845k kernel code, 9388k reserved, 1170k data, 168k init, 0k highmem)
Oct  6 21:24:16 localhost kernel: Checking if this processor honours the
WP bit even in supervisor mode... Ok.
Oct  6 21:24:16 localhost kernel: Calibrating delay loop... 6324.22 BogoMIPS
Oct  6 21:24:16 localhost kernel: Mount-cache hash table entries: 512
(order: 0, 4096 bytes)
Oct  6 21:24:16 localhost kernel: CPU: After generic identify, caps:
bfebfbff 00000000 00000000 00000000
Oct  6 21:24:16 localhost kernel: CPU: After vendor identify, caps:
bfebfbff 00000000 00000000 00000000
Oct  6 21:24:16 localhost kernel: CPU: Trace cache: 12K uops, L1 D cache: 8K
Oct  6 21:24:16 localhost kernel: CPU: L2 cache: 512K
Oct  6 21:24:16 localhost kernel: CPU: After all inits, caps:
bfebfbff 00000000 00000000 00000080
Oct  6 21:24:16 localhost kernel: Intel machine check architecture
supported.
Oct  6 21:24:16 localhost kernel: Intel machine check reporting enabled
on CPU#0.
Oct  6 21:24:16 localhost kernel: CPU0: Intel P4/Xeon Extended MCE MSRs
(12) available
Oct  6 21:24:16 localhost kernel: CPU: Intel Mobile Intel(R) Pentium(R)
4     CPU 3.20GHz stepping 09
Oct  6 21:24:16 localhost kernel: Enabling fast FPU save and restore...
done.
Oct  6 21:24:16 localhost kernel: Enabling unmasked SIMD FPU exception
support... done.
Oct  6 21:24:16 localhost kernel: Checking 'hlt' instruction... OK.


After google'n around about the Dell BIOS broken... I forced acpi on by
commenting out some lines in my
/usr/src/linux/arc/i386/kernel/dmi_scan.c file and recompiled. I no
longer get the message. ACPI seem to be working. CPUDyn is working.
Since smp/ht needs acpi I hoped that editing my source would fix it. I
checked off the smp/2 and ht in my 2.6.8.1-ck9 .config and recompiled.
Black screen again, frozen, no errors.
Arrrrrggg!

Any suggestions?
TIA
Tobias
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