Le mardi 06 septembre 2011 à 08:51 +0200, Dennis Storm - Drecomm BV a
écrit :
Hello,
If your machine is fitted with 96GB why are you using
(enable-dom0-ballooning yes) ?
If your DOM0 starts with 8GB put the same amount for "dom0_min_mem" and
ballooning = no.
I have had problems with "ballooning" ! So I am very cautious with its
usage.
Regards
JP P
> Hmm, just one reply of somebody who has the same issue. No one else
> encountered this problem? Or has any kind of clue?
>
> Met vriendelijke groet,
>
> Dennis Storm
> Senior Systeembeheerder
>
>
>
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> E d.storm@xxxxxxxxxx
>
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> 9701)
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>
>
> drecomm
>
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> ______________________________________________________________________
>
> Op 2-9-2011 21:44, Dennis Storm schreef:
> > Hi,
> >
> > I'm having a weird problem with one of my Xen machines. I have a 96Gb
> > ram server, running on Debian 6 with Xen kernel. However, I can only
> > assign memory out of a pool of 24GB, the rest is unavailable for
> > assignment. When trying to run a new DomU i'm getting the error that
> > there isn't enough free ram. However, when I do the math myself I can
> > see that there's 22GB of ram in use, which leave 74GB available (minus
> > Dom0 minimum limit, which is set at 8GB).
> >
> > I've tried disabling ballooning, i als saw posts of ram missing due to
> > the balloondriver, but nothing in the likes of this volume of missing ram.
> >
> > Any help would be very much appreciated. Seems a shame to let 74GB go to
> > waste. If you need any more info, please let me know!
> >
> > XM info output:
> > --------------
> > host : <blotted out>
> > release : 2.6.32-5-xen-amd64
> > version : #1 SMP Tue Jun 14 12:46:30 UTC 2011
> > machine : x86_64
> > nr_cpus : 16
> > nr_nodes : 2
> > cores_per_socket : 4
> > threads_per_core : 2
> > cpu_mhz : 2400
> > hw_caps :
> > bfebfbff:2c100800:00000000:00001f40:009ee3fd:00000000:00000001:00000000
> > virt_caps : hvm
> > total_memory : 98295
> > free_memory : 19
> > node_to_cpu : node0:0-3,8-11
> > node1:4-7,12-15
> > node_to_memory : node0:19
> > node1:0
> > node_to_dma32_mem : node0:0
> > node1:0
> > max_node_id : 1
> > xen_major : 4
> > xen_minor : 0
> > xen_extra : .1
> > xen_caps : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32
> > hvm-3.0-x86_32p hvm-3.0-x86_64
> > xen_scheduler : credit
> > xen_pagesize : 4096
> > platform_params : virt_start=0xffff800000000000
> > xen_changeset : unavailable
> > xen_commandline : placeholder
> > cc_compiler : gcc version 4.4.5 (Debian 4.4.5-10)
> > cc_compile_by : waldi
> > cc_compile_domain : debian.org
> > cc_compile_date : Wed Jan 12 14:04:06 UTC 2011
> > xend_config_format : 4
> > --------------
> >
> > XM List output:
> > -----------
> > Name ID Mem VCPUs State
> > Time(s)
> > Domain-0 0 11257 16 r-----
> > 24477.0
> > <hostname blotted out> 25 256 8 -b----
> > 4233.8
> > <hostname blotted out> 11 1024 8 -b----
> > 1725.5
> > <hostname blotted out> 2 4192 8 r-----
> > 66563.5
> > <hostname blotted out> 3 512 16 -b----
> > 15330.1
> > <hostname blotted out> 17 512 16 -b----
> > 5249.6
> > <hostname blotted out> 18 512 16 -b----
> > 12292.2
> > <hostname blotted out> 19 512 1 -b----
> > 6620.5
> > <hostname blotted out> 8 512 16 -b----
> > 1554.6
> > <hostname blotted out> 9 1024 4 -b----
> > 1837.1
> > <hostname blotted out> 12 1024 4 -b----
> > 5932.5
> > <hostname blotted out> 13 1024 16 -b----
> > 35491.3
> > <hostname blotted out> 22 1024 8 -b----
> > 5505.7
> > <hostname blotted out> 20 512 1 -b----
> > 15667.6
> > <hostname blotted out> 23 2816 8 -b----
> > 6621.9
> > <hostname blotted out> 26 512 1 -b----
> > 11633.6
> > <hostname blotted out> 28 512 16 -b----
> > 906.9
> > <hostname blotted out> 15 512 1 -b----
> > 17502.6
> > <hostname blotted out> 27 256 1 -b----
> > 3924.0
> > <hostname blotted out> 7 512 1 -b----
> > 12216.5
> > <hostname blotted out> 6 512 1 -b----
> > 9732.1
> > <hostname blotted out> 29 2048 16 -b----
> > 1738.4
> > <hostname blotted out> 4 256 8 -b----
> > 4346.0
> > <hostname blotted out> 30 2048 8 -b----
> > 4066.8
> >
> > Total ram used for all DomU's: 22624MB
> > ----------------------
> >
> > Config for DomU (generic for all running DomU's, except ram and core
> > assignments)
> > ----------------------
> >
> > #
> > # Kernel + memory size
> > #
> > kernel = '/boot/vmlinuz-2.6.32-5-xen-amd64'
> > ramdisk = '/boot/initrd.img-2.6.32-5-xen-amd64'
> > (enable-dom0-ballooning yes)
> > memory = '2048'
> > vcpus = '8'
> > extra = 'xencons=tty'
> >
> > #
> > # Disk
> > device(s).http://www.virtuatopia.com/index.php/Installing_and_Running_Windows_7_as_a_Xen_HVM_domainU_Guest
> > #
> > root = '/dev/xvda1 ro'
> > disk = [ 'file:/storage/target/disk.img,xvda,w',
> > 'file:/storage/target/swap.img,xvdb,w' ]
> >
> > #
> > # Hostname
> > #
> > name = '<hostname blotted out>'
> >
> > #
> > # Networking
> > #
> > vif = [ 'ip=<obscured>' ]
> >
> > #
> > # Behaviour
> > #
> > on_poweroff = 'destroy'
> > on_reboot = 'restart'
> > on_crash = 'restart'
> >
> > --------
> >
> > xend-config.sxp
> > --------
> > (network-script network-bridge)
> > (vif-script vif-bridge)
> > (dom0-min-mem 196)
> > (enable-dom0-ballooning yes)
> > (total_available_memory 0)
> > (dom0-cpus 0)
> > ----------
> >
> > Kind regards,
> >
> > Dennis Storm - Drecomm BV
> >
> > _______________________________________________
> > Xen-users mailing list
> > Xen-users@xxxxxxxxxxxxxxxxxxx
> > http://lists.xensource.com/xen-users
> _______________________________________________
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