Messages in this thread | | | From | "Scott Robert Ladd" <> | Subject | Kernel for Pentium 4 hyperthreading? | Date | Sat, 14 Dec 2002 20:11:45 -0500 |
| |
Okay, I'm going bald even faster than usual.
I've just received a new computer based on a 2.8 GHz Pentium 4 with hyper-threading enabled. Yes, HT is enabled in the BIOS; yes, /proc/cpuinfo shows the 'ht' flag; yes, I've compiled 2.4.20 (stock) with SMP and ACPI enabled.
No, it doesn't work. cat /proc/cpuinfo reports a single CPU.
I've also tried a 2.5.51 kernel -- and it, indeed, does find "both" processors, listing them in cpuinfo as siblings. Looking at the boot logs, 2.5.51 seems to work just fien with my CPU.
For many reasons, I'd prefer to be running the 2.4.20 kernel (if nothing else, I'm having trouble getting loadable modules -- the nVidia drivers for one -- to work on 2.5.51.)
Can 2.4.20 handle a Pentium 4 (not Xeon, mind you) with HT? What could I be missing in my kernel build?
What is especially frustrating is that the factory-installed Windows XP had no trouble at all using the HT-enable P4 (until I sent WinXP to the great bit-bucket in the sky).
Thanks in advance.
..Scott
- 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/
| |