-----Original Message-----
From: fedora-xen-bounces(a)redhat.com [mailto:fedora-xen-bounces@redhat.com] On Behalf Of
Dale Bewley
Sent: Friday, October 19, 2007 11:46
To: fedora-xen
Subject: Re: [Fedora-xen] 64-Bit RAM Detection >4GB?
I have 4 procs with 16G RAM and no mem paramters in grub at all, and it looks like this:
Linux h 2.6.20-2931.fc7xen #1 SMP Mon Aug 13 10:11:56 EDT 2007 x86_64 x86_64 x86_64
GNU/Linux
# grep 'model name' /proc/cpuinfo
model name : AMD Opteron(tm) Processor 852
model name : AMD Opteron(tm) Processor 852
model name : AMD Opteron(tm) Processor 852
model name : AMD Opteron(tm) Processor 852
# grep Total /proc/meminfo
MemTotal: 13335552 kB
SwapTotal: 5261240 kB
VmallocTotal: 34359738367 kB
# xm info |grep total
total_memory : 16319
I have 3 domU's running with each allocated 1G, so 16-3=13 which I suppose explains
the MemTotal line above from the perspective of dom0.
On an identical server running RHEL with no xen and I see something a bit different:
Red Hat Enterprise Linux AS release 4 (Nahant Update 5)
Linux z 2.6.9-55.0.2.ELsmp #1 SMP Tue Jun 12 17:58:20 EDT 2007 x86_64 x86_64 x86_64
GNU/Linux
# grep Total /proc/meminfo
MemTotal: 16359284 kB
HighTotal: 0 kB
LowTotal: 16359284 kB
SwapTotal: 5261240 kB
VmallocTotal: 536870911 kB
HugePages_Total: 0
Not sure if that was helpful.
--
Dale Bewley - Unix Administrator - Shields Library - UC Davis
GPG: 0xB098A0F3 0D5A 9AEB 43F4 F84C 7EFD 1753 064D 2583 B098 A0F3
Dale,
Could you tell me if you passed any arguments to the installer during your initial
install? Also, can you show me the appropriate portion of your grub.conf? I would like
to see if maybe it is different than mine even though they are both pre-packaged installs.
I had a machine with 2.6.20-2931.fc7xen, so I copied that to the machine in question, and
it also only shows 3.1GiB for me. I compared the config files for that kernel and the one
I was using, and they are identical (minus version and date comment lines), so that was as
I expected, but it makes it less likely that my problem is a version problem and more
likely that something else is haywire. Thanks,
Dustin