[2.6.0-test3] Hyperthreading gone

From: Florian Weimer
Date: Sat Aug 09 2003 - 12:12:56 EST


ACPI with CPU enumeration is enabled, but the sibling CPUs aren't
activated.

This is all what I have of the boot message (standard buffer size is
too small, apparently):

CPU: After all inits, caps: 3febfbff 00000000 00000000 00000080
Intel machine check architecture supported.
Intel machine check reporting enabled on CPU#3.
CPU#3: Intel P4/Xeon Extended MCE MSRs (12) available
CPU#3: Thermal monitoring enabled
CPU3: Intel(R) Xeon(TM) CPU 1.40GHz stepping 01
Total of 4 processors activated (11034.62 BogoMIPS).
WARNING: No sibling found for CPU 0.
WARNING: No sibling found for CPU 1.
WARNING: No sibling found for CPU 2.
WARNING: No sibling found for CPU 3.

Recent 2.4.x kernels (starting with 2.4.20 IIRC) support
Hyperthreading on this machine (Siemens Primergy H450).
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/