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

To: "Tom Mornini" <tmornini@xxxxxxxxxxxxxx>, "Daniel Mealha Cabrita" <dancab@xxxxxxxxxxxx>
Subject: Re: [Xen-users] dom0 freezes under high IO load - HP ML150 G2 - FIXED(so it seems)
From: "Itamar Reis Peixoto" <itamar@xxxxxxxxxxxxxxxx>
Date: Mon, 5 Mar 2007 12:53:29 -0200
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Can you explain for me how to identify a problem using the slabinfo ?


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Itamar Reis Peixoto

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----- 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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