On Thu, Jun 30, 2016 at 11:24:03PM +0000, Shaun Reitan wrote: > We're using the stock configuration, the dom0 is limited to 1024MB > via grub. > Did you try disabling dom0 memory ballooning in xend config ? Does that change anything? -- Pasi > > > ------ Original Message ------ > From: "Pasi Kärkkäinen" <pasik@xxxxxx> > To: "Shaun Reitan" <shaun.reitan@xxxxxxxxxxx>; "Discussion about the > virtualization on CentOS" <centos-virt@xxxxxxxxxx> > Sent: 6/26/2016 9:30:57 AM > Subject: Re: Cannot allocate Memory > > >On Wed, Jun 22, 2016 at 05:45:05PM +0000, Shaun Reitan wrote: > >> Any of you guys ever seen an issue with Xen 4.4 were xm > >>cannot create a > >> guest because of what looks like an issue allocating memory > >>even though xm > >> info shows like 5x the amount of free memory needed? We are still > >> unfortunately still using xm... it's on my list, i know.. > >> We've had this happen on a couple hosts now. Only way to > >>resolve seams to > >> be rebooting the host. I'm going to update the host to > >>latest Xen 4.4 now > >> hoping this is a old bug. > >> Here's from xen logs > >> [2016-06-22 09:13:50 1958] DEBUG (XendDomainInfo:105) > >> XendDomainInfo.create(['vm', ['name', 'xxx'], ['memory', 2048], > >> ['on_xend_start', 'ignore'], ['on_xend_stop', 'ignore'], > >>['vcpus', 2], > >> ['oos', 1], ['image', ['linux', ['kernel', > >>'/kernels/vmlinux-2.6.18.8-4'], > >> ['videoram', 4], ['args', 'root=/dev/xvda ro xencons=tty > >>console=tty1 '], > >> ['tsc_mode', 0], ['nomigrate', 0]]], ['s3_integrity', 1], > >>['device', > >> ['vbd', ['uname', 'phy:vg/fs_6818'], ['dev', 'xvda'], > >>['mode', 'w']]], > >> ['device', ['vbd', ['uname', 'phy:vg/fs_6819'], ['dev', > >>'xvdb'], ['mode', > >> 'w']]], ['device', ['vif', ['rate', '40mb/s'], ['mac', > >> 'FE:FD:48:01:F1:E7']]]]) > >> [2016-06-22 09:13:50 1958] DEBUG (XendDomainInfo:2504) > >> XendDomainInfo.constructDomain > >> [2016-06-22 09:13:50 1958] DEBUG (balloon:187) Balloon: > >>7602632 KiB free; > >> need 16384; done. > >> > > > >Hmm.. so you're using (dom0) memory ballooning? You might want to > >disable it. > >Things worked better without ballooning (at least with xend). > > > > > >-- Pasi > > > >> [2016-06-22 09:13:50 1958] ERROR (XendDomainInfo:2566) (12, > >>'Cannot > >> allocate memory') > >> Traceback (most recent call last): > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", > >> line 2561, in _constructDomain > >> target = self.info.target()) > >> Error: (12, 'Cannot allocate memory') > >> [2016-06-22 09:13:50 1958] ERROR (XendDomainInfo:490) VM > >>start failed > >> Traceback (most recent call last): > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", > >> line 475, in start > >> XendTask.log_progress(0, 30, self._constructDomain) > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendTask.py", line > >> 209, in log_progress > >> retval = func(*args, **kwds) > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", > >> line 2572, in _constructDomain > >> raise VmError(failmsg) > >> VmError: Creating domain failed: name=xxx > >> [2016-06-22 09:13:50 1958] ERROR (XendDomainInfo:110) Domain > >>construction > >> failed > >> Traceback (most recent call last): > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", > >> line 108, in create > >> vm.start() > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", > >> line 475, in start > >> XendTask.log_progress(0, 30, self._constructDomain) > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendTask.py", line > >> 209, in log_progress > >> retval = func(*args, **kwds) > >> File > >>"/usr/lib64/python2.6/site-packages/xen/xend/XendDomainInfo.py", > >> line 2572, in _constructDomain > >> raise VmError(failmsg) > >> VmError: Creating domain failed: name=xxx > >> -- > >> Shaun > > > _______________________________________________ CentOS-virt mailing list CentOS-virt@xxxxxxxxxx https://lists.centos.org/mailman/listinfo/centos-virt
