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? Thanks in advance! with best regards nik -- ------------------------------------- Ing. Nikola CIPRICH LinuxBox.cz, s.r.o. 28. rijna 168, 709 01 Ostrava tel.: +420 596 603 142 fax: +420 596 621 273 mobil: +420 777 093 799 www.linuxbox.cz mobil servis: +420 737 238 656 email servis: servis@linuxbox.cz -------------------------------------