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From: PGNet Dev <pgnet.dev@gmail.com>
To: Wei Liu <wei.liu2@citrix.com>
Cc: xen-devel@lists.xen.org
Subject: Re: Xen 4.6 --with-ovmf, on UEFI Dom0 host up/running, but logging repeated "d1v0 Over-allocation for domain" ?
Date: Fri, 18 Mar 2016 08:55:16 -0700	[thread overview]
Message-ID: <856c20f8-ae91-6553-115d-48241c4f4d36@gmail.com> (raw)
In-Reply-To: <20160318154804.GB23307@citrix.com>

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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  reply	other threads:[~2016-03-18 15:55 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-18 15:21 Xen 4.6 --with-ovmf, on UEFI Dom0 host up/running, but logging repeated "d1v0 Over-allocation for domain" ? PGNet Dev
2016-03-18 15:48 ` Wei Liu
2016-03-18 15:55   ` PGNet Dev [this message]
2016-03-18 16:03     ` Wei Liu
2016-03-18 16:19       ` PGNet Dev

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