Re: [Xen-users] dom0 freezes under high IO load - HP ML150 G2

[TMC <tmciolek@xxxxxxxxx>]

I seer.

what version of kernel are you using? have you actually check the
changelog for the newer kernel versions to see if there any related
issues being fixed in the device drivers, memory handling, block
devices ?

Tomasz



On 04/03/07, Tom Mornini <tmornini@xxxxxxxxxxxxxx> wrote:
> No, I've never seen this kind of behavior before.
>
> I cannot test it outside of Xen, because our entire system and it's
> reason for existence is based upon Xen.
>
> --
> -- Tom Mornini, CTO
> -- Engine Yard, Ruby on Rails Hosting
> -- Reliability, Ease of Use, Scalability
> -- (866) 518-YARD (9273)
>
>
> On Mar 3, 2007, at 2:20 PM, TMC wrote:
>
> > On 04/03/07, Tom Mornini <tmornini@xxxxxxxxxxxxxx> wrote:
> >> On Mar 3, 2007, at 7:04 AM, Tim Post wrote:
> >>
> >> > But everyone seems to have forgotten the days of 4 MB being a lot.
> >> >
> >> > Anyway bordering on going off topic. I just find it ironic and
> >> > humorous
> >> > that state of the art Virtualization technology is making problems
> >> > that
> >> > went away magically when big ram came out re-present themselves
> >> with a
> >> > vengeance.
> >>
> >> The problem I'm seeing is *not* memory starvation, it's memory
> >> corruption.
> >
> > are you seeing the same issues with the equivalent vanilla 2,6.xx
> > linux kernel without the Xen patches?
> >
> >> We have almost nothing going on in Dom0... The only reason I put the
> >> cron
> >> job there is the Dom0 kernel is crashing, so it needed to be tested
> >> there...
> >>
> >> We go way back with Unix, and I've told people the same thing, that
> >> Xen is
> >> going to teach people about system performance tuning again. :-)
> >>
> >> --
> >> -- Tom Mornini, CTO
> >> -- Engine Yard, Ruby on Rails Hosting
> >> -- Reliability, Ease of Use, Scalability
> >> -- (866) 518-YARD (9273)
> >>
> >>
> >> _______________________________________________
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> >> Xen-users@xxxxxxxxxxxxxxxxxxx
> >> http://lists.xensource.com/xen-users
> >>
> >
> >
> > --
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> > C2F0
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--
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