Re: [Xen-users] Weird xl mem-set behavior

[Claudiu CurcÄ <alexstrasza2@xxxxxxxxx>]

Yes, I am.

Using the old xm stack works fine, though... xm mem-set 0 <mem> sets
the memory just fine... it's xl who's failing.

However, the dom0_mem boot parameter still doesn't work properly.

On Wed, May 18, 2011 at 11:18 PM, Ian Tobin <itobin@xxxxxxxxxxxxx> wrote:
> Hi,
>
> Same here, are u using grub?
>
>
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> On 18 May 2011, at 16:52, "Iain Kay" <spam@xxxxxxxxxxx> wrote:
>
>> Hi Claudiu,
>>
>> Xen 4.1.0 stable from the tar archive running on CentOS 5.6 with Jeremy's 
>> 2.6.32.x kernel seems rock solid for me.
>>
>> I boot with dom0_mem=512M and get domain 0 with bang on 512MB of ram 
>> allocated.
>>
>> Just tried ammending the line to 1024M and have domain-0 booted with 1024MB 
>> of ram.
>>
>>  ÂName                    ÂID  Mem VCPUs   ÂState  
>> Time(s)
>> Â ÂDomain-0 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0 Â1024 Â Â 2 Â Â r----- Â Â 
>> 15.9
>>
>> Iain
>>
>> On 18 May 2011, at 16:22, Claudiu CurcÄ wrote:
>>
>>> Hello,
>>>
>>> I'm struggling to handle the amount of memory that dom0 gets on some system.
>>>
>>> It's a system with 8GB of RAM, running 2.6.38-6 with pv_ops and Xen 4.1
>>> If I want to set the amount of memory for dom0, I get very bogus
>>> results. See here: http://pastebin.com/gRgY9ERN If I use the M
>>> notation (xl mem-set 0 4096M) the outcome is similarily unpredictable,
>>> and sometimes I get the memory set to something like 200-300MB and in
>>> rare cases a kernel panic.
>>>
>>> Also, if I set the "dom0_mem=X" kernel parameter, the amount of memory
>>> Xen gives to dom0 is fairly random... sometimes 2GB, sometimes 6GB,
>>> sometimes ~500MB, regrardless of what value I use or the unit I use (M
>>> or no unit, for the default KB).
>>>
>>> Anyone else has experienced this in Xen 4.1? Thanks!
>>>
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>>
>>
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