Bob,
The motherboard BMC is not answering to either what it advertises, or to the more common configuration, so the next step is to find out what this board really contains. According to the SuperMicro X8SIL motherboard manual, there is a BMC enable jumper, that may not be set. And it appears that not all flavors of the motherboard may come with the IPMI BMC by default. Check http://www.supermicro.com/manuals/motherboard/3420/MNL-1130.pdf Andy From: Bob Sauvage [mailto:[email protected]] Sent: Monday, August 01, 2011 4:17 AM To: Corey Minyard Cc: [email protected] Subject: Re: [Openipmi-developer] OpenIPMI and RedHat 6 Hi Corey, Thanks again for your help. When I try to hot-add the device, I have the following error in the kernel log : Aug 1 10:13:13 kernel: ipmi_si: Adding hotmod-specified kcs state machine Aug 1 10:13:13 kernel: ipmi_si: Trying hotmod-specified kcs state machine at i/o address 0xca2, slave address 0x20, irq 0 Aug 1 10:13:13 kernel: ipmi_si: Interface detection failed When I try the other solution, it does not work. Any other ideas ? On 07/29/2011 03:57 PM, Corey Minyard wrote: On 07/29/2011 03:50 AM, Bob Sauvage wrote: Hello Jan and Corey, First of all, thanks for the provided information. The ipmi service is started : service ipmi status ipmi_msghandler module loaded. ipmi_si module loaded. ipmi_devintf module loaded. /dev/ipmi0 does not exist. Modules are loaded : Module Size Used by ipmi_devintf 7983 0 ipmi_si 42399 0 ipmi_msghandler 35958 2 ipmi_devintf,ipmi_si dmidecode : System Information Manufacturer: Supermicro Product Name: X8SIL IPMI Device Information Interface Type: KCS (Keyboard Control Style) Specification Version: 2.0 I2C Slave Address: 0x00 NV Storage Device: Not Present Base Address: 0x0000000000000CA2 (Memory-mapped) Register Spacing: Successive Byte Boundaries Kernel log : jul 29 10:39:32 kernel: ipmi message handler version 39.2 Jul 29 10:39:32 kernel: IPMI System Interface driver. Jul 29 10:39:32 kernel: ipmi_si: Adding SMBIOS-specified kcs state machine Jul 29 10:39:32 kernel: ipmi_si: Trying SMBIOS-specified kcs state machine at mem address 0xca2, slave address 0x0, irq 0 Jul 29 10:39:32 kernel: Could not set up I/O space This is the issue. It looks like a bug in your DMI information. Notice that it say the address is 0xca2 and it is memory mapped. That is almost certainly wrong, as you would never have a memory mapped device at that address. It's almost certainly I/O mapped. You can attempt to work around this by specifying "type=kcs ports=0xca2" when modprob-ing ipmi_si: rmmod ipmi_si modprobe ipmi_si type=kcs ports=0xca2 Alternately, you can hot-add the device to the running driver using: echo "add,kcs,i/o,0xca2" >/sys/module/ipmi_si/parameters/hotmod And of course, you can complain to your motherboard vendor. -corey
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