Hi,
We are migrating from xen 4.4 to xen 4.8. At the moment we boot our
system with a xen command line that includes
"dom0_mem=8192m,min:1728m,max:8192m". We have autoballoon of dom0
disabled in xl.conf and instead call xl mem-set 0 <memory_size> to
change the dom0 memory allocation. (We shrink before starting guest
domains and then increase it when all are stopped.)
In xen 4.8.2 the xl mem-set command fails with this error:
# xl mem-set 0 3990
libxl: error: libxl.c:4196:libxl_set_memory_target: unable to retrieve
domain configuration: No such file or directory
cannot set domid 0 dynamic max memory to : 3990
I think it was the following commit that made it necessary to access the
configuration file but perhaps for the case domid == 0 this should be
skipped? If it is that simple I could try a patch which includes that
test.
commit 38cd0664a6bf1c3b887992ea029d2bb516f52c59
Author: Shannon Zhao <shannon.z...@linaro.org>
Date: Wed Sep 28 18:19:02 2016 -0700
libxl/arm: Add the size of ACPI tables to maxmem
Here it adds the ACPI tables size to set the target maxmem to avoid
providing less available memory for guest.
Thanks,
James
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