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xen-devel
Re: [Xen-devel] Fw: AMD 64 X2 5200 - XEN only detects one core
Darryl Bowler schrieb:
> Xen only detects one of two cores
I experience a similar problem on a Intel Core Duo MacBook Pro and
xen-unstable (3.2-rc2-pre from today). I use the following workaround:
Boot a standard 2.6.23 kernel (which is able to detect both cores)
without xen, then use kexec to boot xen with the 2.6.18-xen kernel.
Sadly I can't post a full `xm dmesg'. The kernel also fails to detect my
USB harddrive from which I'm booting (booting from USB *does* work when
I use the above workaround). But here's a screenshot of Xen's boot messages:
http://www.boppstrasse.de/xen_cpu_fail.jpg
After the 2.6.23 + kexec trick, when everything is working fine, `xm
dmesg' looks like this (I have to use noapic, otherwise it won't boot at
all):
(XEN) Xen version 3.2.0-rc2-pre (root@xxxxxxxxxxxxxxx) (gcc version
4.2.2 (Gentoo 4.2.2 p1.0)) Wed Dec 19 17:59:17 CET 2007
(XEN) Latest ChangeSet: Wed Dec 19 09:51:35 2007 +0000 16633:7c98b9177b15
(XEN) Command line: noapic
(XEN) Video information:
(XEN) VGA is text mode 80x25, font 8x16
(XEN) VBE/DDC methods: V2; EDID transfer time: 1 seconds
(XEN) Disc information:
(XEN) Found 0 MBR signatures
(XEN) Found 2 EDD information structures
(XEN) Xen-e820 RAM map:
(XEN) 0000000000000000 - 000000000009fc00 (usable)
(XEN) 000000000009fc00 - 00000000000a0000 (reserved)
(XEN) 00000000000ede00 - 0000000000100000 (reserved)
(XEN) 0000000000100000 - 000000007f0c8000 (usable)
(XEN) 000000007f0c8000 - 000000007f2c9000 (ACPI NVS)
(XEN) 000000007f2c9000 - 000000007feb9000 (ACPI data)
(XEN) 000000007feb9000 - 000000007feef000 (ACPI NVS)
(XEN) 000000007feef000 - 000000007ff00000 (ACPI data)
(XEN) 000000007ff00000 - 0000000080000000 (reserved)
(XEN) 00000000e0000000 - 00000000f0000000 (reserved)
(XEN) 00000000fec00000 - 00000000fec01000 (reserved)
(XEN) 00000000fed14000 - 00000000fed1a000 (reserved)
(XEN) 00000000fed1c000 - 00000000fed20000 (reserved)
(XEN) 00000000fee00000 - 00000000fee01000 (reserved)
(XEN) 00000000ffe00000 - 0000000100000000 (reserved)
(XEN) System RAM: 2032MB (2081180kB)
(XEN) Xen heap: 9MB (10084kB)
(XEN) Domain heap initialised: DMA width 32 bits
(XEN) PAE enabled, limit: 16 GB
(XEN) Processor #0 6:14 APIC version 20
(XEN) Processor #1 6:14 APIC version 20
(XEN) Found and enabled local APIC!
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 1997.372 MHz processor.
(XEN) HVM: VMX enabled
(XEN) CPU0: Intel Genuine Intel(R) CPU T2500 @ 2.00GHz
stepping 08
(XEN) Booting processor 1/1 eip 8c000
(XEN) CPU1: Intel Genuine Intel(R) CPU T2500 @ 2.00GHz
stepping 08
(XEN) Total of 2 processors activated.
(XEN) Platform timer overflows in 14998 jiffies.
(XEN) Platform timer is 14.318MHz HPET
(XEN) Brought up 2 CPUs
(XEN) AMD IOMMU: Disabled
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen kernel: 32-bit, PAE, lsb
(XEN) Dom0 kernel: 32-bit, PAE, lsb, paddr 0xc0100000 -> 0xc04ba4fc
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Dom0 alloc.: 000000003f000000->000000003f800000 (479601 pages
to be allocated)
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: c0100000->c04ba4fc
(XEN) Init. ramdisk: c04bb000->c04bb000
(XEN) Phys-Mach map: c04bb000->c06915c4
(XEN) Start info: c0692000->c0692474
(XEN) Page tables: c0693000->c069c000
(XEN) Boot stack: c069c000->c069d000
(XEN) TOTAL: c0000000->c0800000
(XEN) ENTRY ADDRESS: c0100000
(XEN) Dom0 has maximum 2 VCPUs
(XEN) Scrubbing Free RAM: .done.
(XEN) Xen trace buffers: disabled
(XEN) Std. Loglevel: Errors and warnings
(XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
(XEN) Xen is relinquishing VGA console.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
input to Xen)
(XEN) Freed 96kB init memory.
Cheers,
Michael
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