Installed iucode-tool (1.0.3-1~ubuntu14.04.1) from trusty-backports, the
rest of the cores are updated correctly with the new microcodes.
[58003.545612] microcode: CPU1 sig=0x1067a, pf=0x40, revision=0xa07
[58003.549607] microcode: CPU1 updated to revision 0xa0b, date = 2010-09-28
[58003.552615] microcode: CPU2 sig=0x1067a, pf=0x40, revision=0xa07
[58003.556610] microcode: CPU2 updated to revision 0xa0b, date = 2010-09-28
[58003.559696] microcode: CPU3 sig=0x1067a, pf=0x40, revision=0xa07
[58003.563690] microcode: CPU3 updated to revision 0xa0b, date = 2010-09-28
[58003.566739] microcode: CPU4 sig=0x1067a, pf=0x40, revision=0xa07
[58003.570735] microcode: CPU4 updated to revision 0xa0b, date = 2010-09-28
[58003.573747] microcode: CPU5 sig=0x1067a, pf=0x40, revision=0xa07
[58003.577743] microcode: CPU5 updated to revision 0xa0b, date = 2010-09-28
[58003.580751] microcode: CPU6 sig=0x1067a, pf=0x40, revision=0xa07
[58003.584745] microcode: CPU6 updated to revision 0xa0b, date = 2010-09-28
[58003.587777] microcode: CPU7 sig=0x1067a, pf=0x40, revision=0xa07
[58003.591758] microcode: CPU7 updated to revision 0xa0b, date = 2010-09-28
** Changed in: linux (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1423296
Title:
Only one CPU core gets microcode updated
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