Dell Power Edge R710 with CentOS

Markus Kovero Markus.Kovero at
Sat May 22 03:07:01 CDT 2010

Okay, shouldnt this be fixed in firmware rather than OS driver so that other operating system users would get around this as well. 

Markus Kovero

-----Original Message-----
From: Matt Domsch [mailto:Matt_Domsch at] 
Sent: 22. toukokuuta 2010 3:47
To: Markus Kovero
Cc: Steve Thompson; Tom Boland; linux-poweredge at
Subject: Re: Dell Power Edge R710 with CentOS

On Fri, May 21, 2010 at 03:57:09PM +0300, Markus Kovero wrote:
> Latest "fix" for issue is to disable C-states under processor
> configuration in bios. this also fixes problems in other OS's
> (eg. in solaris) Dell has been aware of the issue for months without
> real fix, just workarounds.

I'm not sure what "latest" means, but we did manage to find the root
cause of the failure where the MSI bit would get stuck - which also
explains why disabling MSI-X worked around it.  The right solution is
to use code already in the driver to manage the timeout on that bit
automatically, which is what we are testing with 5.5+ and expect in
newer RHEL kernels ASAP.

Matt Domsch
Technology Strategist
Dell | Office of the CTO

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