[Bugme-new] [Bug 16523] New: Kernel detects only 2 processors on Dual Xeon 5520HT on S5500BC mainboard
bugzilla-daemon at bugzilla.kernel.org
bugzilla-daemon at bugzilla.kernel.org
Thu Aug 5 09:53:20 PDT 2010
https://bugzilla.kernel.org/show_bug.cgi?id=16523
Summary: Kernel detects only 2 processors on Dual Xeon 5520HT
on S5500BC mainboard
Product: ACPI
Version: 2.5
Kernel Version: 2.6.31.xx, 2.6.32.xx, 2.6.33.xx
Platform: All
OS/Version: Linux
Tree: Mainline
Status: NEW
Severity: blocking
Priority: P1
Component: Config-Processors
AssignedTo: acpi_config-processors at kernel-bugs.osdl.org
ReportedBy: barzog at telecom.by
Regression: No
We have server based on Intel S5500 chipset (platform SR1630BC) with dual E5520
(Quad Core with hyper-threading) installed. With 2.6.31.x,2.6.32.x and
2.6.33.xx system number of CPU is 2 instead of 16 (4 logical cores each with 2
threads).
See: http://bugs.gentoo.org/show_bug.cgi?id=308813
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