WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-users

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

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.

-- -- Tom Mornini, CTO
-- Engine Yard, Ruby on Rails Hosting
-- Reliability, Ease of Use, Scalability
-- (866) 518-YARD (9273)


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

_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users


_______________________________________________
Xen-users mailing list
Xen-users@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-users