Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 29 Dec 2003 22:45:09 +0100 | From | Lukas Hejtmanek <> | Subject | 2.6.0 and hyperthreading |
| |
Hello,
is it possible to use Hyperthreading on the processor that supports hypperthreading but motherboard has no idea about SMP?
I have in dmesg: 238MB LOWMEM available. found SMP MP-table at 000f63f0 hm, page 000f6000 reserved twice. hm, page 000f7000 reserved twice. hm, page 0009f000 reserved twice. hm, page 000a0000 reserved twice. On node 0 totalpages: 61152 DMA zone: 4096 pages, LIFO batch:1 Normal zone: 57056 pages, LIFO batch:13 HighMem zone: 0 pages, LIFO batch:1 DMI present. ACPI: RSDP (v000 PTLTD ) @ 0x000f6420 ACPI: RSDT (v001 PTLTD Montara 0x06040000 LTP 0x00000000) @ 0x0eee5e05 ACPI: FADT (v001 Acer Yuhina 0x06040000 PTL 0x00000001) @ 0x0eeeaed2 ACPI: BOOT (v001 PTLTD $SBFTBL$ 0x06040000 LTP 0x00000001) @ 0x0eeeafd8 ACPI: DSDT (v001 ANNI Yuhina 0x06040000 MSFT 0x0100000e) @ 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 Kernel command line: ro root=/dev/hda1 noapic vga=0x318 No local APIC present or hardware disabled Initializing CPU#0 PID hash table entries: 1024 (order 10: 8192 bytes) Detected 2398.193 MHz processor. Console: colour VGA+ 80x25 Memory: 237880k/244608k available (2134k kernel code, 6016k reserved, 829k data, 160k init, 0k highmem) Calibrating delay loop... 4734.97 BogoMIPS Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Mount-cache hash table entries: 512 (order: 0, 4096 bytes) CPU: After generic identify, caps: bfebf9ff 00000000 00000000 00000000 CPU: After vendor identify, caps: bfebf9ff 00000000 00000000 00000000 CPU: Trace cache: 12K uops, L1 D cache: 8K CPU: L2 cache: 128K CPU: Hyper-Threading is disabled CPU: After all inits, caps: bfebf9ff 00000000 00000000 00000080 Enabling fast FPU save and restore... done. Enabling unmasked SIMD FPU exception support... done. Checking 'hlt' instruction... OK. POSIX conformance testing by UNIFIX CPU0: Intel(R) Celeron(R) CPU 2.40GHz stepping 09 per-CPU timeslice cutoff: 365.58 usecs. task migration cache decay timeout: 1 msecs. SMP motherboard not detected. Local APIC not detected. Using dummy APIC emulation. Starting migration thread for cpu 0 CPUS done 8
Could be Hyper-Threading enabled in some way? (I use noapic otherwise kernel hangs during boot after uncompressing kernel message)
-- Lukáš Hejtmánek - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| ![\](/images/icornerr.gif) |