Sorry for the repost, but this got burried as a possible follow-up to an old post. Was Error: (12, ''Cannot allocate memory'') Sometimes I get a cannot allocate memory error when I try to create a guest. I have plenty of memory. When I reboot the host, I no longer get the error. Any ideas on how to fix this problem? Thanks for your help. # xm create /etc/xen/FC6.virt3 Using config file "/etc/xen/FC6.virt3". Error: (12, ''Cannot allocate memory'') The end of the log shows the following: [2006-11-28 19:11:00 xend 2851] DEBUG (image:467) hvm shutdown watch registered [2006-11-28 19:11:00 xend.XendDomainInfo 2851] ERROR (XendDomainInfo:202) Domain construction failed Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 195, in create vm.initDomain() File "/usr/lib64/python2.4/site-packages/xen/xend/XendDomainInfo.py", line 1363, in initDomain raise VmError(str(exn)) VmError: (12, \047Cannot allocate memory\047) [2006-11-28 19:11:00 xend.XendDomainInfo 2851] DEBUG (XendDomainInfo:1449) XendDomainInfo.destroy: domid=3 [2006-11-28 19:11:00 xend.XendDomainInfo 2851] DEBUG (XendDomainInfo:1457) XendDomainInfo.destroyDomain(3) [2006-11-28 19:11:00 xend 2851] DEBUG (image:479) hvm shutdown watch unregistered [2006-11-28 19:11:00 xend 2851] ERROR (xswatch:70) read_watch failed Traceback (most recent call last): File "/usr/lib64/python2.4/site-packages/xen/xend/xenstore/xswatch.py", line 66, in watchMain res = watch.fn(we[0], *watch.args, **watch.kwargs) File "/usr/lib64/python2.4/site-packages/xen/xend/image.py", line 489, in hvm_shutdown reason = vm.readDom(\047control/shutdown\047) AttributeError: \047NoneType\047 object has no attribute \047readDom\047 ____________________________________________________________________________________ Do you Yahoo!? Everyone is raving about the all-new Yahoo! Mail beta. http://new.mail.yahoo.com