linux-kernel - Re: [BISECTED] ipmi_si not loading since 2.6.39

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Message-ID: <20120423200937.GA4983@nik-comp.lan>
Date:	Mon, 23 Apr 2012 22:09:37 +0200
From:	Nikola Ciprich <nikola.ciprich@...uxbox.cz>
To:	linux-kernel@...r.kernel.org
Cc:	rob.herring@...xeda.com, tcminyard@...il.com,
	Nikola Ciprich <nik@...-comp.lan>
Subject: Re: [BISECTED] ipmi_si not loading since 2.6.39

Hi,

any idea anyone? Simply reverting this patch is not possible due to further
modifications so I haven't tried this yet..

Any hint on what could I try? (specifying some module parameters, etc..)

Thanks!

nik



On Sat, Apr 21, 2012 at 09:20:56AM +0200, Nikola Ciprich wrote:
> Hi,
> 
> here's further information Rob and Corey requested:
> 
> on working system:
> 
> [root@...x4 ~]# cat /proc/ipmi/0/params
> kcs,i/o,0xca2,rsp=1,rsi=1,rsh=0,irq=0,ipmb=0
> 
> dmesg snippet:
> 
> [   41.759319] ipmi message handler version 39.2
> [   41.760690] ipmi device interface
> [   42.765334] IPMI System Interface driver.
> [   42.765336] ipmi_si: probing via hardcoded address
> [   42.765337] ipmi_si: Adding hardcoded-specified kcs state machine
> [   42.765340] ipmi_si: Trying hardcoded-specified kcs state machine at i/o address 0xca8, slave address 0x0, irq 0
> [   42.765344] ipmi_si: Interface detection failed
> [   42.770823] ipmi_si: probing via SMBIOS
> [   42.770834] ipmi_si: SMBIOS: io 0xca2 regsize 1 spacing 1 irq 0
> [   42.770836] ipmi_si: Adding SMBIOS-specified kcs state machine
> [   42.770838] ipmi_si: probing via SPMI
> [   42.770840] ipmi_si: SPMI: io 0xe4 regsize 1 spacing 1 irq 0
> [   42.770841] ipmi_si: Adding SPMI-specified kcs state machine
> [   42.770843] ipmi_si: Trying SMBIOS-specified kcs state machine at i/o address 0xca2, slave address 0x0, irq 0
> [   42.798137] ipmi_si ipmi_si.0: Error clearing flags: cc
> [   42.801011] ipmi_si ipmi_si.0: Found new BMC (man_id: 0x002a7c, prod_id: 0x0624, dev_id: 0x20)
> [   42.801068] ipmi_si ipmi_si.0: IPMI kcs interface initialized
> 
> 
> dmidecode:
> 
> 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 (I/O)
>         Register Spacing: Successive Byte Boundaries
> 
> Base Board Information
>         Manufacturer: Supermicro
>         Product Name: X9SCL/X9SCM
> 
> (but we're experiencing this on various supermicro bords, ie X8DTL)
> 
> Tried setting parameters by hand didn't help:
> 
> modprobe ipmi_si type=kcs addrs=0xca8 regspacings=1 regsizes=1 regshifts=0 irqs=0 slave_addrs=0x0
> 
> (not sure whether I got them correct though, and values mostly seem to me to be defaults anyways..)
> 
> nik
> 
> 
> On Sat, Apr 21, 2012 at 12:38:33AM +0200, 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 <rob.herring@...xeda.com>
> > 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@...xeda.com>
> >     Signed-off-by: Grant Likely <grant.likely@...retlab.ca>
> > 
> > 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@...uxbox.cz
> > -------------------------------------
> 
> 
> 
> -- 
> -------------------------------------
> 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@...uxbox.cz
> -------------------------------------



-- 
-------------------------------------
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@...uxbox.cz
-------------------------------------

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