[Devel] Re: microcode_ctl-1.15.tar.gz incorporates broken microcode?

[Tigran Aivazian]

Hello Konstantin,

This has been fixed in the latest version of the kernel device driver. So, 
upgrade your kernel and the message will go away.

Kind regards
Tigran

On Thu, 2 Nov 2006, Konstantin Khorenko wrote:

> Hello Tigran,
>
> i'm afraid there is something wrong with microcode in latest 1.15 archive, it 
> fails to be loaded on at least 2 completely different nodes
> while microcode from 1.14 can be written successfuly.
> Could you please have a look?
>
> [root at svconsole firmware]# microcode_ctl -u -f 
> microcode_ctl-1.14/intel-ia32microcode-10May2006.txt
> microcode_ctl: writing microcode (length: 252928)
> microcode_ctl: microcode successfuly written to /dev/cpu/microcode
>
> [root at svconsole firmware]# dmesg | tail -n 3
> IA-32 Microcode Update Driver: v1.14 <tigran at veritas.com>
> microcode: CPU0 already at revision 0xe (current=0xe)
> microcode: No new microdata for cpu 0
>
> [root at svconsole firmware]# microcode_ctl -u -f 
> microcode_ctl-1.15/intel-ia32microcode-07Sep2006.txt
> microcode_ctl: writing microcode (length: 265216)
> microcode_ctl: error writing to '/dev/cpu/microcode' errno=22 (Invalid 
> argument)
> microcode_ctl: there may be messages from the driver in your system log.
>
> [root at svconsole firmware]# dmesg |tail -n 6
> IA-32 Microcode Update Driver: v1.14 <tigran at veritas.com>
> microcode: CPU0 already at revision 0xe (current=0xe)
> microcode: No new microdata for cpu 0
> microcode: CPU0 already at revision 0xe (current=0xe)
> microcode: error! Bad data in microcode data file
> microcode: Error in the microcode data
>
> [root at svconsole firmware]# ls -Flaio /dev/cpu/microcode
> 9658 crw-------  1 root 10, 184 Nov  2 09:37 /dev/cpu/microcode
>
> [root at svconsole firmware]# md5sum microcode_ctl-1.15.tar.gz 
> microcode_ctl-1.15/intel-ia32microcode-07Sep2006.txt
> 9c8e602295a55260aee2c2f1c701ac09  microcode_ctl-1.15.tar.gz
> 30e65074b4e9c0a43ef7a07d22a62506 
> microcode_ctl-1.15/intel-ia32microcode-07Sep2006.txt
>
> [root at svconsole firmware]# uname -a
> Linux svconsole 2.6.9-34.EL #1 Fri Feb 24 16:44:51 EST 2006 i686 i686 i386 
> GNU/Linux
>
> [root at svconsole firmware]# cat /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 7
> model name      : Pentium III (Katmai)
> stepping        : 3
> cpu MHz         : 501.193
> cache size      : 512 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 2
> wp              : yes
> flags           : fpu vme de pse tsc msr pae mce cx8 mtrr pge mca cmov pat 
> pse36 mmx fxsr sse
> bogomips        : 1003.29
>
> Please, let me know if you need any other info.
>
> Thank you!
>
> -- 
> Best regards,
> Konstantin Khorenko
>
> SWsoft Virtuozzo/OpenVZ Linux kernel team
>