[Xen-devel] Re: [Xen-users] issue moving guest from 3.2 to 4.01

[chris <tknchris@xxxxxxxxx>]

these are the first things i tried and they made no difference.

On Wed, Dec 22, 2010 at 4:27 PM, Mark Pryor <tlviewer@xxxxxxxxx> wrote:
> Chris,
>
> Give dom0 some reasonable amount of RAM, and leave the rest for domU's
> ---------
> on xen.gz line in grub add on end
> kernel xen.gz placeholder dom0_mem=768M ; grub2 prefix might be different
>
> Bios
> -----
> turn-off hyper-threading in bios
> Enable HPET and set your arch (x86_64?)
>
> dom0 config
> --------
> turn off save/restore in /etc/default/xendomains ; at least until things work 
> right
>
> domU
> ----
> remove cpu=1
> give more RAM 256->512   ; until things work
>
> --- On Wed, 12/22/10, chris <tknchris@xxxxxxxxx> wrote:
>
>> From: chris <tknchris@xxxxxxxxx>
>> Subject: Re: [Xen-users] issue moving guest from 3.2 to 4.01
>> To: "Mark Pryor" <tlviewer@xxxxxxxxx>
>> Cc: xen-users@xxxxxxxxxxxxxxxxxxx
>> Date: Wednesday, December 22, 2010, 12:39 PM
>> # grep '^(' /etc/xen/xend-config.sxp
>> (vif-script vif-bridge)
>> (dom0-min-mem 196)
>> (enable-dom0-ballooning yes)
>> (total_available_memory 0)
>> (dom0-cpus 0)
>> (vnc-listen '0.0.0.0')
>>
>> # xm info
>> host
>>    : mango
>> release
>>   : 2.6.32-5-xen-amd64
>> version
>>   : #1 SMP Fri Dec 10 17:41:50 UTC 2010
>> machine
>>   : x86_64
>> nr_cpus
>>   : 8
>> nr_nodes
>>    : 1
>> cores_per_socket       : 4
>> threads_per_core       : 2
>> cpu_mhz
>>   : 2800
>> hw_caps
>>   :
>> bfebfbff:28100800:00000000:00001b40:0098e3fd:00000000:00000001:00000000
>> virt_caps              :
>> hvm
>> total_memory           :
>> 4087
>> free_memory            : 256
>> node_to_cpu            :
>> node0:0-7
>> node_to_memory         :
>> node0:256
>> node_to_dma32_mem      : node0:173
>> max_node_id            : 0
>> 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 20100824 (prerelease)
>> (Debian 4.4.4-11)
>> cc_compile_by          : waldi
>> cc_compile_domain      : debian.org
>> cc_compile_date        : Fri Sep
>> 3 15:38:12 UTC 2010
>> xend_config_format     : 4
>>
>> From the guest filesystem loop mounted at /mnt/tmp:
>>
>> /mnt/tmp/lib/modules# ls
>> 2.6.26-2-xen-amd64
>>
>> I could try copying the modules for the newer domU kernel
>> but would
>> that really cause an error that early on? I mean the kernel
>> isn't even
>> starting so I don't think the modules are whats causing
>> this.
>>
>> On Wed, Dec 22, 2010 at 3:30 PM, Mark Pryor <tlviewer@xxxxxxxxx>
>> wrote:
>> >
>> >
>> > --- On Wed, 12/22/10, chris <tknchris@xxxxxxxxx>
>> wrote:
>> >
>> >> From: chris <tknchris@xxxxxxxxx>
>> >> Subject: [Xen-users] issue moving guest from 3.2
>> to 4.01
>> >> To: "Xen-Users List" <xen-users@xxxxxxxxxxxxxxxxxxx>,
>> "Xen-Devel List" <xen-devel@xxxxxxxxxxxxxxxxxxx>
>> >> Date: Wednesday, December 22, 2010, 10:59 AM
>> >> Hello,
>> >>
>> >> I have a pv linux guest which works perfectly on
>> 3.2 and
>> >> when I moved
>> >> the guest to the new server (debian squeeze, xen
>> 4.0.1) I
>> >> cannot start
>> >> it, I get the following error:
>> >>
>> >> # xm create vm-customer.cfg
>> >> Using config file "./vm-customer.cfg".
>> >> Error: (1, 'Internal error', 'launch_vm:
>> SETVCPUCONTEXT
>> >> failed (rc=-1)\n')
>> >>
>> >
>> > this looks to be a problem with dom0 config, not
>> domU.
>> >
>> > It's easier to help if you post:
>> >
>> > #grep '^(' /etc/xen/xend-config.sxp ;    (dom0-cpus
>> 0) is a safe value
>> >
>> > #xm info
>> >
>> > in domU
>> > #ls -al /lib/modules/   ; chances are the modules are
>> not compatible with dom0 kernel
>> >
>> > --
>> > Mark
>> >
>> >
>> >
>> >
>>
>
>
>
>
>

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