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Re: [Xen-devel] Xen 4.6 --with-ovmf, on UEFI Dom0 host up/running, but logging repeated "d1v0 Over-allocation for domain" ?



On 03/18/2016 08:48 AM, Wei Liu wrote:> The log message isn't necessarily indication for a bug.

OVMF is huge, so it pushes up total memory consumption of the guest.  It
is normal that you see that message when using OVMF during boot time.

What is unclear to me is why your guest keeps trying to ask for more
pages after it boots up.  Is your guest trying to balloon in pages?

Re: ballooning. I don't _think_ so, but not sure how to verify that.

Currently, my DomO's cmd line is

xen_commandline : dom0_mem=4096M,max:4096M dom0_max_vcpus=1 dom0_vcpus_pin=true cpuidle=1 cpufreq=xen clocksource=hpet iommu=verbose sched=credit vga=gfx-1920x1080x16 com1=115200,8n1,pci console=com1,vga console_timestamps sync_console console_to_ring conring_size=64 earlyprintk=vga,keep log_buf_len=16M sched_debug apic_verbosity=verbose debug loglvl=debug guest_loglvl=debug

Yes, I'm sure it's subject to improvement.

On the guest,

Kernel command line: BOOT_IMAGE=/vmlinuz root=LABEL=ROOT resume=LABEL=SWAP kbdtype=us headless text quiet nofb apparmor=0 edd=off splash=silent noshell showopts net.ifnames=0 console=ttyS0,19200n8 systemd.log_level=info systemd.log_target=kmsg

Do you see the same message repeated when using seabios?

Haven't yet checked.

Atm, I've only UEFI guests, setup. To test, I'll just have to spin up a non-UEFI guest. A bit later ...

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