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SubjectRe: [BISECTED] ipmi_si not loading since 2.6.39
On 04/20/2012 05:38 PM, Nikola Ciprich wrote:
> Hello,
> 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<>
> 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<>
> Signed-off-by: Grant Likely<>
> 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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