Re: [Xen-users] xen 3.0 amd64 crash... seems to be tied into disk i/o,> 4 gig ram

[Matt Ayres <matta@xxxxxxxxxxxx>]

Tom Brown wrote:
> On Tue, 13 Dec 2005, Matt Ayres wrote:
>
> > Tom Brown wrote:
> > > I just posted a followup comment on bug # 405...  what are you using for a
> > > motherboard?
> > I use Tyan S881 and S882 motherboards.
> I'm not getting any hits on google for "Tyan S881" ... ahh, s4881 and
> s4882 ... that 4 makes a difference :)
>
> hhmm, looks like that will likely have the same fragmented memory layout
> that the supermicro's have, as each processor has locally attached memory.
>
> ever tried to boot one of these without a 64bit or pae kernel? Does it
> only see 1/4 of the memory? what does the boot time memory map look like?
> e.g. (from dmesg)
>
> BIOS-provided physical RAM map:
>  BIOS-e820: 0000000000000000 - 000000000009fc00 (usable)
>  BIOS-e820: 000000000009fc00 - 00000000000a0000 (reserved)
>  BIOS-e820: 00000000000e8000 - 0000000000100000 (reserved)
>  BIOS-e820: 0000000000100000 - 00000000bfff0000 (usable)
>  BIOS-e820: 00000000bfff0000 - 00000000bffff000 (ACPI data)
>  BIOS-e820: 00000000bffff000 - 00000000c0000000 (ACPI NVS)
>  BIOS-e820: 00000000ff780000 - 0000000100000000 (reserved)
>  BIOS-e820: 0000000100000000 - 0000000140000000 (usable)
>
> My second memory bank starts at 0x0000000100000000, which is 2^32
> (4gig)
I have posted another panic to bug #402.  I have everything so if Ian or 
 another developer wants more info I have the vmlinux/System.map/config 
available.
My board shows:
BIOS-provided physical RAM map:
 Xen: 0000000000000000 - 0000000020000000 (usable)


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