Re: [Xen-users] Xen3.0.0 Dom0 >80M Reserved

[Nicolas Dimitrijevic <n001@xxxxxxxxxxx>]

Le mercredi 04 janvier 2006 à 18:08 +0100, Goetz Bock a écrit :
> Dear list,
> 
> after upgrading my server to 3GB (as it would not take 4GB :-(, the BIOS
> only counts to 3.5GB) I realised that when the Dom0 kernel boots, 
> something reserves over 80M:
> 
> Memory: 136060k/221184k available (1562k kernel code, 84432k reserved, 586k 
> data
> , 128k init)
> 
> Can someone enlight me what takes the memeory? The Xen hypervisor get's
> about 48MB of it's own.

Hi,

I have this same problem:
I have two similar arch: (nforce4 + athlon 64 X2), the first one have
4GB, the second 2GB.
xen is xen-3.0-testing, kernel 2.6.12.6

== 4GB: ==

Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Software IO TLB enabled:
Aperture:     64 megabytes
Bus range:    0x0000000078000000 - 0x000000007c000000
Kernel range: 0xffff88000157b000 - 0xffff88000557b000
Memory: 184444k/270336k available (1670k kernel code, 85260k reserved,
579k data, 152k init)

# free
             total       used       free     shared    buffers
cached
Mem:        185076     104668      80408          0      17556
38412
-/+ buffers/cache:      48700     136376
Swap:       524280          0     524280

# cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000cebff : Video ROM
000cf000-000d07ff : Adapter ROM
000f0000-000fffff : System ROM
00100000-7efbffff : System RAM
7efc0000-7efcdfff : reserved
7efce000-7efeffff : reserved
7eff0000-7effffff : reserved
d0000000-dfffffff : 0000:00:05.0
faaff800-faafffff : 0000:04:05.0
  faaff800-faafffff : ohci1394
fc000000-fcffffff : 0000:00:05.0
fd000000-fdffffff : 0000:00:05.0
febd7000-febd7fff : 0000:00:14.0
  febd7000-febd7fff : forcedeth
febdc000-febdcfff : 0000:00:0f.0
  febdc000-febdcfff : sata_nv
febdd000-febddfff : 0000:00:0e.0
  febdd000-febddfff : sata_nv
febde000-febdefff : 0000:00:0b.0
  febde000-febdefff : ohci_hcd
febdfc00-febdfcff : 0000:00:0b.1
fec00000-fec00fff : reserved
fee00000-feefffff : reserved
ff780000-ffffffff : reserved


== 2GB: ==

Dentry cache hash table entries: 65536 (order: 7, 524288 bytes)
Inode-cache hash table entries: 32768 (order: 6, 262144 bytes)
Software IO TLB enabled:
 Aperture:     2 megabytes
 Bus range:    0x000000000c200000 - 0x000000000c400000
 Kernel range: 0xffff88000069d000 - 0xffff88000089d000
Memory: 248576k/270336k available (1670k kernel code, 21152k reserved,
579k data, 152k init)

# free
             total       used       free     shared    buffers
cached
Mem:        249184      67040     182144          0       4588
19304
-/+ buffers/cache:      43148     206036
Swap:       524280          0     524280

# cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000cebff : Video ROM
000cf000-000d07ff : Adapter ROM
000f0000-000fffff : System ROM
00100000-7efbffff : System RAM
7efc0000-7efcdfff : reserved
7efce000-7efeffff : reserved
7eff0000-7effffff : reserved
d0000000-dfffffff : 0000:00:05.0
faaff800-faafffff : 0000:04:05.0
  faaff800-faafffff : ohci1394
fc000000-fcffffff : 0000:00:05.0
fd000000-fdffffff : 0000:00:05.0
febd7000-febd7fff : 0000:00:14.0
  febd7000-febd7fff : forcedeth
febd8000-febdbfff : 0000:00:10.1  <-- this line not exist on 4GB version
febdc000-febdcfff : 0000:00:0f.0
  febdc000-febdcfff : sata_nv
febdd000-febddfff : 0000:00:0e.0
  febdd000-febddfff : sata_nv
febde000-febdefff : 0000:00:0b.0
  febde000-febdefff : ohci_hcd
febdfc00-febdfcff : 0000:00:0b.1
fec00000-fec00fff : reserved
fee00000-feefffff : reserved
ff780000-ffffffff : reserved



_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users