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[Xen-users] dom0_mem option -grub

If i enable the grub option dom0_mem=1024M

I get messages like this:

411 pages pagetables
swapper: page allocation failure. order:0, mode:0x20


[<c0140735>] __alloc_pages+0x261/0x275
[<ee1fbaed>] e1000_alloc_rx_buffers_ps+0x94/0x230 [e1000]
[<ee1fe16d>] e1000_clean_rx_irq_ps+0x4e3/0x569 [e1000]
[<ee1fcc4c>] e1000_clean+0x69/0x136 [e1000]
[<c0233ce0>] net_rx_action+0x96/0x18f
[<c011f41e>] __do_softirq+0x5e/0xc3
[<c011f4bd>] do_softirq+0x3a/0x4a
[<c0106131>] do_IRQ+0x48/0x53
[<c020c1cc>] evtchn_do_upcall+0x64/0x9b
[<c0104a51>] hypervisor_callback+0x3d/0x48
[<c0107342>] raw_safe_halt+0x8c/0xaf
[<c0102c5f>] xen_idle+0x22/0x2e
[<c0102d7e>] cpu_idle+0x91/0xab
[<c03236fc>] start_kernel+0x378/0x37f

and the system is getting very slow.
If i diable it, ill become errors like this:

... memory squeeze detected ...

xen_net: Memory squeeze in netback driver

and the network crahes after a while

- Michael Schmidt

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