You, Yongkang
2006-Apr-13 08:27 UTC
RE: [Fedora-xen] two fully virtualized systems crashing
Em~. Sounds true. "xm info" can show how large the memory Xen can recognize (total_memory) and how many free memory is left (free_memory) . I think the total_memory of your machine is only 2.5G. It means Xen can only know there is 2.5G memory, except you run a PAE enabled Xen. Xen0 usually doesn''t need too much memory. I suggest you can use 512M or 1024M. Best Regards, Yongkang (Kangkang) 永康>-----Original Message----- >From: Matthias Bayer [mailto:matbayer.web@web.de] >Sent: 2006年4月13日 16:03 >To: sct@redhat.com; You, Yongkang >Cc: fedora-xen@redhat.com >Subject: RE: [Fedora-xen] two fully virtualized systems crashing > >OK - found the problem ! >setting my Dom0 memory with dom0_mem=2G as kernel parameter fixed the >problem !! >before i haven''t specified anything - so if i understand it right all the memory >would belong to Dom0 and every DomU that starts ''grabs'' a bit until >Dom0-min-mem is reached. >so does this behaviour then indicate that something with balooning is >buggy ?? > >thanks Stephen and Yongkang for the help so far ! >Matthias > >> -----Ursprüngliche Nachricht----- >> Von: "You, Yongkang" <yongkang.you@intel.com> >> Gesendet: 13.04.06 09:35:54 >> An: "Stephen C. Tweedie" <sct@redhat.com> >> CC: <fedora-xen@redhat.com> >> Betreff: RE: [Fedora-xen] two fully virtualized systems crashing > > >> Hi Matthias, >> >> >Mem: 3501056 684452 2816604 0 69520 >> I am not quite clear about the dom0 memory. Is it 3.5G? >> >> How large the memory apply to dom0? I mean how about dom0_mem=. >> >> Best Regards, >> Yongkang (Kangkang) ÓÀ¿µ >> >> >-----Original Message----- >> >From: fedora-xen-bounces@redhat.com >> >[mailto:fedora-xen-bounces@redhat.com] On Behalf Of Matthias Bayer >> >Sent: 2006Äê4ÔÂ13ÈÕ 15:30 >> >To: Stephen C. Tweedie >> >Cc: fedora-xen@redhat.com >> >Subject: RE: [Fedora-xen] two fully virtualized systems crashing >> > >> > >> > >> >I have 4 GB of RAM, each DomU has 512 MB and i only try to run 2 >> >windows DomU''s ! >> > >> > total used free shared buffers >> >cached >> >Mem: 3501056 684452 2816604 0 69520 >> >347260 >> >-/+ buffers/cache: 267672 3233384 >> >Swap: 2096440 0 2096440 >> > >> >do i need to configure something elswhere to give the hypervisor more >> >memory ? >> >can i create any other debugs that may be helpful to find the problem ? >> > >> >regards, >> >Matthias >> > >> >> Hi, >> >> >> >> On Wed, 2006-04-12 at 17:29 +0200, Matthias Bayer wrote: >> >> > >> >> > (0 of 1)XEN) DOM >> >> > (XEN) Couldn''t alloc shadow page! dom3 count=893o map I/O space >> >> > 000f03 >> >> > (XEN) Shadow table counts: l1=0 l2=0 hl2=0 >> >> >> >> This looks like the hypervisor ran out of memory. How much memory do >> >> you have, and how much is being given to each domain? >> >> >> >> --Stephen >> >> >> >> >> > >> > >> >>____________________________________________________________ >__ >> >_ >> >SMS schreiben mit WEB.DE FreeMail - einfach, schnell und >> >kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192 >> > >> >-- >> >Fedora-xen mailing list >> >Fedora-xen@redhat.com >> >https://www.redhat.com/mailman/listinfo/fedora-xen > > >______________________________________________________________ >_ >SMS schreiben mit WEB.DE FreeMail - einfach, schnell und >kostenguenstig. Jetzt gleich testen! http://f.web.de/?mc=021192