On Mon, Mar 7, 2016 at 5:16 AM, Josh Boyer <jwboyer(a)fedoraproject.org> wrote:
On Mon, Mar 7, 2016 at 3:13 AM, Paul Bolle <pebolle(a)tiscali.nl>
wrote:
> On zo, 2016-03-06 at 22:02 -0500, Josh Boyer wrote:
>> The functionality is not disabled in the kernel. It was merged into the
>> main driver and the config options no longer exist. If you aren't seeing
>> early ucode updates then dracut needs to be updated to deal with 4.4 and
>> newer kernels.
>
> Dracut needs to stop parsing config files (as it apparently does).
> Kconfig symbols can (and will) change from release to release. They get
> dropped, change meaning, change from tristate to bool or vice versa,
> etc, whenever the kernel developers think that's needed.
>
> I do not know what dracut is trying to achieve here, but there has got
> to be a better way to do it.
There is. Dracut has been fixed for a while. Apparently it just
wasn't backported to f22.
I'm confused. I see microcode updates applied before initramfs being
unpacked, so how is dracut doing this? This is on Fedora 23.
[chris@f23m Downloads]$ dmesg | grep -i microcode
[chris@f23m Downloads]$ dmesg | grep -i microcode
[ 0.000000] microcode: CPU0 microcode updated early to revision
0x29, date = 2013-06-12
[ 0.057384] microcode: CPU1 microcode updated early to revision
0x29, date = 2013-06-12
[ 0.060449] microcode: CPU2 microcode updated early to revision
0x29, date = 2013-06-12
[ 0.063358] microcode: CPU3 microcode updated early to revision
0x29, date = 2013-06-12
[ 0.555373] microcode: CPU0 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555389] microcode: CPU1 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555450] microcode: CPU2 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555515] microcode: CPU3 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555580] microcode: CPU4 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555605] microcode: CPU5 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555680] microcode: CPU6 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555745] microcode: CPU7 sig=0x206a7, pf=0x10, revision=0x29
[ 0.555958] microcode: Microcode Update Driver: v2.01
<tigran(a)aivazian.fsnet.co.uk>, Peter Oruba
[ 1.603190] [drm] Loading TURKS Microcode
[chris@f23m Downloads]$ dmesg | grep -i initramfs
[ 0.147888] Unpacking initramfs...
On a different system the timing is reversed:
[chris@f23s ~]$ dmesg | grep -i microcode
[ 1.128387] microcode: CPU0 sig=0x406c3, pf=0x1, revision=0x35e
[ 1.138941] microcode: CPU1 sig=0x406c3, pf=0x1, revision=0x35e
[ 1.149739] microcode: CPU2 sig=0x406c3, pf=0x1, revision=0x35e
[ 1.152059] microcode: CPU3 sig=0x406c3, pf=0x1, revision=0x35e
[ 1.154580] microcode: Microcode Update Driver: v2.01
<tigran(a)aivazian.fsnet.co.uk>, Peter Oruba
[chris@f23s ~]$ dmesg | grep -i initramfs
[ 0.267684] Unpacking initramfs...
--
Chris Murphy