[Xen-devel] SMP dom0 with 8 cpus of i386

["Kamble, Nitin A" <nitin.a.kamble@xxxxxxxxx>]

Hi Keir,

   For me the current unstable tree is not working with 8 cpu and SMP dom0 on a IA32 server. I found that this patch http://xenbits.xensource.com/xen-unstable.hg?cmd=changeset;node=a0b4156cc0ce4e6495cfa316c5383ee2be81c22f has introduced some issue. I also see same issue if I pass maxcpus=4 option in the hypervisor command line.

 

After reverting the patch, SMP dom0 can boot with 8 cpus with the 6453 release from the xen-unstable.

 

I see these errors while booting the SMP dom0 kernel.

 

NET: Registered protocol family 16

PCI: Using MMCONFIG

ACPI: Subsystem revision 20050309

ACPI: Interpreter enabled

ACPI: Using IOAPIC for interrupt routing

ACPI: PCI Root Bridge [TNB] (0000:00)

PCI: Probing PCI hardware (bus 00)

PCI: Ignoring BAR0-3 of IDE controller 0000:00:1f.2

(XEN) (file=/home/nitin/repo/hariwch/latest/xen/include/asm/mm.h, line=201) Error pfn 0: rd=ffbf4a00, od=ff1a5080, caf=80000001, taf=f0000001

(XEN) DOM0: (file=mm.c, line=349) Could not get page ref for pfn 0

(XEN) DOM0: (file=mm.c, line=2085) Could not get page for normal update

(XEN) DOM0: (file=mm.c, line=2243) Invalid page update command 2

(XEN) DOM0: (file=mm.c, line=349) Could not get page ref for pfn 23d201

(XEN) DOM0: (file=mm.c, line=2085) Could not get page for normal update

(XEN) DOM0: (file=mm.c, line=349) Could not get page ref for pfn 693d200

(XEN) DOM0: (file=mm.c, line=2085) Could not get page for normal update

(XEN) DOM0: (file=mm.c, line=349) Could not get page ref for pfn 2fbf7d

(XEN) DOM0: (file=mm.c, line=2218) Could not get page for mach->phys update

(XEN) DOM0: (file=mm.c, line=2243) Invalid page update command 3

(XEN) DOM0: (file=mm.c, line=2243) Invalid page update command 2

(XEN) DOM0: (file=mm.c, line=349) Could not get page ref for pfn 28200010

(XEN) DOM0: (file=mm.c, line=2218) Could not get page for mach->phys update

(XEN) DOM0: (file=mm.c, line=2243) Invalid page update command 2

(XEN) DOM0: (file=mm.c, line=349) Could not get page ref for pfn ab000000

 

 

Thanks & Regards,

Nitin

-----------------------------------------------------------------------------------

Sr Software Engineer

Open Source Technology Center, Intel Corp

 

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