[Xen-users] Weird xl mem-set behavior

[Claudiu Curcă <alexstrasza2@xxxxxxxxx>]

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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