Hi everyone,
I tried to restore a saved domain but it failed with:
Traceback (most recent call last):
File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line
263, in domain_restore_fd
return XendCheckpoint.restore(self, fd)
File "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py",
line 150, in restore
balloon.free(xc.pages_to_kib(nr_pfns))
File "/usr/lib/python2.4/site-packages/xen/xend/balloon.py", line
166,
in free
raise VmError(
VmError: I need 192512 KiB, but dom0_min_mem is 200704 and shrinking to
200704 KiB would leave only 119668 KiB free.
For some reason, balloon.py get the wrong value for dom0_min_mem. In
grub.conf I set dom0_mem=131072 and xm list shows it correctly:
# xm list 0
Name ID Mem(MiB) VCPUs State Time(s)
Domain-0 0 128 1 r----- 4906.2
Did I miss something ?
Thanks,
Tuan
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On 12/10/06 17:52, "Tuan Van" <lang.thang@gmail.com> wrote:> For some reason, balloon.py get the wrong value for dom0_min_mem. In > grub.conf I set dom0_mem=131072 and xm list shows it correctly: > # xm list 0 > Name ID Mem(MiB) VCPUs State Time(s) > Domain-0 0 128 1 r----- 4906.2 > > Did I miss something ?/etc/xen/xend-config.sxp. Change the dom0-min-mem parameter in there to zero. If you know what you are doing then dom0 auto-ballooning is really just a pain in the neck. Probably we should disable it by default if we see an explicit dom0_mem= parameter on the Xen command line. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
On Thu, Oct 12, 2006 at 09:52:59AM -0700, Tuan Van wrote:> Hi everyone, > I tried to restore a saved domain but it failed with: > Traceback (most recent call last): > File "/usr/lib/python2.4/site-packages/xen/xend/XendDomain.py", line > 263, in domain_restore_fd > return XendCheckpoint.restore(self, fd) > File "/usr/lib/python2.4/site-packages/xen/xend/XendCheckpoint.py", > line 150, in restore > balloon.free(xc.pages_to_kib(nr_pfns)) > File "/usr/lib/python2.4/site-packages/xen/xend/balloon.py", line 166, > in free > raise VmError( > VmError: I need 192512 KiB, but dom0_min_mem is 200704 and shrinking to > 200704 KiB would leave only 119668 KiB free. > > For some reason, balloon.py get the wrong value for dom0_min_mem. In > grub.conf I set dom0_mem=131072 and xm list shows it correctly: > # xm list 0 > Name ID Mem(MiB) VCPUs State Time(s) > Domain-0 0 128 1 r----- 4906.2 > > Did I miss something ?dom0_min_mem is an additional setting in /etc/xen/xend-config.sxp, over-and-above anything that might be set on the kernel command line (dom0_mem). You need to change that setting to match your dom0_mem (or make it lower than dom0_mem, if that''s what you''d like). Ewan. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel