Re: [BISECTED] ipmi_si not loading since 2.6.39

From: Corey Minyard
Date: Fri Apr 20 2012 - 20:34:36 EST

On 04/20/2012 05:38 PM, Nikola Ciprich wrote:

I was trying to find out why IPMI stopped working on new kernels. Since 2.6.39
module loading ends with following message:

ipmi_si: Interface detection failed

Then ipmitool is unable to control IPMI device.

Works for 2.6.38, doesn't work for 2.6.39, 3.0.28, 3.4-rc1.

I got this bisected to following commit:

commit a1e9c9dd3383e6a1a762464ad604b1081774dbda
Author: Rob Herring<rob.herring@xxxxxxxxxxx>
Date: Wed Feb 23 15:37:59 2011 -0600

ipmi: convert OF driver to platform driver

of_bus is deprecated in favor of the plain platform bus. This patch
merges the ipmi OF driver with the existing platform driver.

CONFIG_PPC_OF occurrances are removed or replaced with CONFIG_OF.

Compile tested with and without CONFIG_OF. Tested OF probe and
default probe cases.

Signed-off-by: Rob Herring<rob.herring@xxxxxxxxxxx>
Signed-off-by: Grant Likely<grant.likely@xxxxxxxxxxxx>

I wonder whether this is a bug, or I'm doing something wrong?

If it used to work and now it doesn't, that's probably a bug, though you might be able to work around it with some direct settings.

What hardware is involved? 'cat /proc/ipmi/0/params' on a working kernel would be handy. You can use that information to hot-add the BMC, that should be documented in Documentation/IPMI.txt

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