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* 5x dom0 memory increase from Xen/Linux 3.4/2.6.18 to 4.1/3.0.0
@ 2011-06-16 12:58 Anthony Wright
  2011-06-16 14:56 ` Konrad Rzeszutek Wilk
  0 siblings, 1 reply; 10+ messages in thread
From: Anthony Wright @ 2011-06-16 12:58 UTC (permalink / raw)
  To: xen-devel

I have a fairly old machine with 512M of RAM that I use for testing. Under Xen 3.4 with the 2.6.18 linux kernel it would happily work with dom0_mem=50M, leaving 450M for VMs. I am in the process of upgrading to Xen 4.1 with a stock 3.0.0-rc3 linux kernel (with konrad's vga-support patch). This combination however requires dom0_mem=250M to work leaving only 250M for the VMs (if I try to set dom0_mem any lower I get a kernel panic early on in the kernel boot phase).

This is an increase of 5x between the two versions, and I wondered if there's an explanation why. Is it possible to reduce the memory requirements, or do I have to learn to live with it.

thanks,

Anthony Wright

^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2011-06-23 13:02 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-06-16 12:58 5x dom0 memory increase from Xen/Linux 3.4/2.6.18 to 4.1/3.0.0 Anthony Wright
2011-06-16 14:56 ` Konrad Rzeszutek Wilk
2011-06-17 15:31   ` Anthony Wright
2011-06-20 12:45     ` Konrad Rzeszutek Wilk
2011-06-22 13:15       ` Anthony Wright
2011-06-22 13:32         ` Konrad Rzeszutek Wilk
2011-06-22 14:22           ` Anthony Wright
2011-06-22 14:39             ` Konrad Rzeszutek Wilk
2011-06-22 15:53               ` Anthony Wright
2011-06-23 13:02                 ` Konrad Rzeszutek Wilk

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