Jingyun He
2009-Jun-21 02:31 UTC
[Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to 450Mb
Hi, When I create some vps that need more momery from dom0, and reduce the memory of dom0 to 450Mb, seems the dom0 is crashed, and rebooted, any idea? I''m running xen 3.3.1 Thanks. _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Harper
2009-Jun-21 05:07 UTC
RE: [Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to450Mb
> > Hi, When I create some vps that need more momery from dom0, and reduce > the memory of dom0 to 450Mb, > seems the dom0 is crashed, and rebooted, > any idea? >I think I''ve noticed that before, although I wasn''t sure that that was the cause. I set Dom0''s memory at around 4pm and by the next morning the system had been rebooted, probably when the backups ran (eg high system load) James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Jingyun He
2009-Jun-21 06:55 UTC
Re: [Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to450Mb
Yes, not at the the same time, This is happen twice today, one is crash in 1 min later, another one is in 5 mins later, Now, I removed the last VPS, everything is working fine, How do you resolve that ? On Sun, Jun 21, 2009 at 7:07 AM, James Harper<james.harper@bendigoit.com.au> wrote:>> >> Hi, When I create some vps that need more momery from dom0, and reduce >> the memory of dom0 to 450Mb, >> seems the dom0 is crashed, and rebooted, >> any idea? >> > > I think I''ve noticed that before, although I wasn''t sure that that was > the cause. I set Dom0''s memory at around 4pm and by the next morning the > system had been rebooted, probably when the backups ran (eg high system > load) > > James >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Fajar A. Nugraha
2009-Jun-21 08:30 UTC
Re: [Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to 450Mb
On Sun, Jun 21, 2009 at 9:31 AM, Jingyun He<jingyun.ho@gmail.com> wrote:> Hi, When I create some vps that need more momery from dom0, and reduce > the memory of dom0 to 450Mb, > seems the dom0 is crashed, and rebooted, > any idea?What is your dom0 memory usage like? Try using "top". I''m guessing dom0 is out of memory (probably because you have lots of domUs with tap:aio). I did an error once, running "xm mem-set 0 768" instead of "xm mem-set 0 768M" and the result was instant dom0 restart :P -- Fajar _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Jingyun He
2009-Jun-21 08:43 UTC
Re: [Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to 450Mb
No, memory is not used much, what I see is about 200-300Mb, On Sun, Jun 21, 2009 at 10:30 AM, Fajar A. Nugraha<fajar@fajar.net> wrote:> On Sun, Jun 21, 2009 at 9:31 AM, Jingyun He<jingyun.ho@gmail.com> wrote: >> Hi, When I create some vps that need more momery from dom0, and reduce >> the memory of dom0 to 450Mb, >> seems the dom0 is crashed, and rebooted, >> any idea? > > What is your dom0 memory usage like? Try using "top". > I''m guessing dom0 is out of memory (probably because you have lots of > domUs with tap:aio). > I did an error once, running "xm mem-set 0 768" instead of "xm mem-set > 0 768M" and the result was instant dom0 restart :P > > -- > Fajar >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Harper
2009-Jun-21 09:28 UTC
RE: [Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to450Mb
> > Yes, not at the the same time, > This is happen twice today, one is crash in 1 min later, another one > is in 5 mins later, > Now, I removed the last VPS, everything is working fine, > > How do you resolve that ?My resolution was to not reduce dom0 memory. James _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Jingyun He
2009-Jun-21 09:33 UTC
Re: [Xen-users] dom0 crash when mem-set to memory of dom0 from 512Mb to450Mb
How much ram did you assign to the dom0? and is it a good practice to set minimal ram to the same as the ram assigned to dom0? so the ram of dom0 will never be reduced by accident. On Sun, Jun 21, 2009 at 11:28 AM, James Harper<james.harper@bendigoit.com.au> wrote:>> >> Yes, not at the the same time, >> This is happen twice today, one is crash in 1 min later, another one >> is in 5 mins later, >> Now, I removed the last VPS, everything is working fine, >> >> How do you resolve that ? > > My resolution was to not reduce dom0 memory. > > James >_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users