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dom0_mem=max:xxx required after linux 3.3 on AMD

 

 

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james at dingwall

Jul 5, 2012, 2:33 AM

Post #1 of 2 (179 views)
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dom0_mem=max:xxx required after linux 3.3 on AMD

Hi,

I have encountered a problem with three different AMD platforms when
trying to user a kernel release >=3.3 with xen-4.1.2 and xen-unstable.
When the xen.gz command line has dom0_mem=1G the dom0 will crash
immediately after Xen trys to boot the kernel. However it semes that if
I specify dom0_mem=max:1G then the system will start correctly. (I have
only verified this on one system but I will try the other two at the
earliest opportunity.) I have exactly the same kernel on an Intel
platform but this does not show the same behaviour.

Has anyone else observed a similar problem and should it be considered a
bug?

Thanks,
James

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matthias.kannenberg at googlemail

Jul 5, 2012, 2:53 PM

Post #2 of 2 (158 views)
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Re: dom0_mem=max:xxx required after linux 3.3 on AMD [In reply to]

If this is any help: my dom0 boots fine..

CPU: AMD Phenom 2 1090T
Kernel: 3.4.2 openSuse
dom0: Debian Wheezy
Xen: 4.1.3-rc2-pre
kernel xen line: "multiboot /boot/xen.gz dom0_mem=2048M iommu=1
loglvl=all guest_loglvl=all"

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