Re: [Xen-users] dom0 freezes under high IO load - HP ML150 G2 - FIXED(so it seems)

[Tom Mornini <tmornini@xxxxxxxxxxxxxx>]

I  noticed that if I set a cron job:

  cat /proc/slabinfo >> slabinfo.txt

to run every 5 minutes, my machines became far less stable.

Mr. Cabrita may have experienced the same issue.

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-- Tom Mornini, CTO
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On Mar 5, 2007, at 9:53 AM, Itamar Reis Peixoto wrote:

> Can you explain for me how to identify a problem using the slabinfo ?
>
>
> --------------------
>
> Itamar Reis Peixoto
>
> e-mail: itamar@xxxxxxxxxxxxxxxx
> msn: itamarjp@xxxxxxxxxxxxx
> skype: itamarjp
> icq: 81053601
> +55 34 3238 3845
> +55 11 4063 5033
>
>
> ----- Original Message ----- From: "Tom Mornini"  
> <tmornini@xxxxxxxxxxxxxx>
> To: "Daniel Mealha Cabrita" <dancab@xxxxxxxxxxxx>
> Cc: <xen-users@xxxxxxxxxxxxxxxxxxx>
> Sent: Monday, March 05, 2007 12:51 PM
> Subject: Re: [Xen-users] dom0 freezes under high IO load - HP ML150  
> G2 - FIXED(so it seems)
> > Can you try this while issuing:
> >
> >
> >   cat /proc/slabinfo >> slabinfo.txt
> >
> >
> > simultaneously?
> >
> > --  -- Tom Mornini, CTO
> > -- Engine Yard, Ruby on Rails Hosting
> > -- Reliability, Ease of Use, Scalability
> > -- (866) 518-YARD (9273)
> >
> >
> > On Mar 5, 2007, at 10:00 AM, Daniel Mealha Cabrita wrote:
> >
> > > Apparently Xen-unstable (as of today) has this issue fixed.
> > >
> > > I left iozone running for several minutes and no hangups   
> > > (previously it
> > > wouldn't past the random disk access tests, at best).
> > >
> > > No idea whether a kernel or a xen-specific bug. The kernel  
> > > version  of unstable
> > > version is currently 2.6.18.
> > >
> > >
> > > --
> > >  Daniel Mealha Cabrita
> > >  Divisao de Suporte Tecnico
> > >  AINFO / Reitoria / UTFPR
> > >  http://www.utfpr.edu.br
> > >
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> > > http://lists.xensource.com/xen-users
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