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Regarding microcode update




Hi, 

After microcode update, for signature=0x306a9 upgraded revision should be 0x1f but dmesg shows wrong revision any ideas what went wrong.

i have upgraded microcode using apt-get install iucode_tool. 

In intel release notes, came across the below notes which says that it should upgraded to 0x1f.
IVB E2 6-3a-9:12 1c->1f

dhanraj@debian:~$ dmesg | grep microcode
[    2.542014] microcode: CPU0 sig=0x306a9, pf=0x2, revision=0x17
[    2.543391] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.543971] microcode: CPU0 updated to revision 0x1b, date = 2014-05-29
[    2.543997] microcode: CPU1 sig=0x306a9, pf=0x2, revision=0x17
[    2.545378] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.545647] microcode: CPU1 updated to revision 0x1b, date = 2014-05-29
[    2.545674] microcode: CPU2 sig=0x306a9, pf=0x2, revision=0x17
[    2.547079] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.547357] microcode: CPU2 updated to revision 0x1b, date = 2014-05-29
[    2.547366] microcode: CPU3 sig=0x306a9, pf=0x2, revision=0x17
[    2.548655] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.548920] microcode: CPU3 updated to revision 0x1b, date = 2014-05-29
[    2.548942] microcode: CPU4 sig=0x306a9, pf=0x2, revision=0x17
[    2.550180] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.550460] microcode: CPU4 updated to revision 0x1b, date = 2014-05-29
[    2.550480] microcode: CPU5 sig=0x306a9, pf=0x2, revision=0x17
[    2.551675] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.551957] microcode: CPU5 updated to revision 0x1b, date = 2014-05-29
[    2.551978] microcode: CPU6 sig=0x306a9, pf=0x2, revision=0x17
[    2.553162] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.553429] microcode: CPU6 updated to revision 0x1b, date = 2014-05-29
[    2.553435] microcode: CPU7 sig=0x306a9, pf=0x2, revision=0x17
[    2.554585] platform microcode: firmware: agent loaded intel-ucode/06-3a-09 into memory
[    2.554851] microcode: CPU7 updated to revision 0x1b, date = 2014-05-29
[    2.554898] microcode: Microcode Update Driver: v2.00 <tigran@xxxxxxxxxxxxxxxxxxxx>, Peter Oruba

Need to understand what went wrong in my side.

Regards,
Vigneshdhanraj