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papas
Tux's lil' helper
Joined: 01 Dec 2014
Posts: 141
Location: Athens
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 Posted: Sat Feb 23, 2019 7:41 pm Post subject: processor type |
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Hello guys,
during the last kernel upgrade (4.20.12, syncconfig) required the processor type, i have 8700k but there is no coffeelake family, should i choose the skylake or generic x84_64?
thank you. |
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The Doctor
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Joined: 27 Jul 2010
Posts: 2678
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| Posted: Sat Feb 23, 2019 9:24 pm Post subject: |
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The question is about what optimization instructions to use and those are added, not removed.
Maybe they added skylake since my kernel, 4.14.83-gentoo, but my i7 uses Core 2/newer Xeon. You won't hurt yourself going to an older version and even the generic is fairly optimized given how recent the platform is. The only way to really mess up is to select the wrong base processor, ie AMD's instructions instead of Intel's or the wrong set of Intel.
If they added skylake it should be safe for coffeelake. If not you will know soon enough. Always a good idea to keep the old kernel handy in case the new one is so feature rich that it had to exclude booting.
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First things first, but not necessarily in that order.
Apologies if I take a while to respond. I'm currently working on the dematerialization circuit for my blue box. |
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Jaglover
Watchman
Joined: 29 May 2005
Posts: 8291
Location: Saint Amant, Acadiana
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mike155
Advocate
Joined: 17 Sep 2010
Posts: 4438
Location: Frankfurt, Germany
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| Posted: Sat Feb 23, 2019 9:37 pm Post subject: |
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Interesting... I just downloaded vanilla kernel 5.0.0-rc7, but there's no option 'Skylake' in 'make menuconfig':
| Code: | ┌────────────────────── Processor family ───────────────────────┐
│ Use the arrow keys to navigate this window or press the │
│ hotkey of the item you wish to select followed by the <SPACE │
│ BAR>. Press <?> for additional information about this │
│ ┌───────────────────────────────────────────────────────────┐ │
│ │ ( ) Opteron/Athlon64/Hammer/K8 │ │
│ │ ( ) Intel P4 / older Netburst based Xeon │ │
│ │ (X) Core 2/newer Xeon │ │
│ │ ( ) Intel Atom │ │
│ │ ( ) Generic-x86-64 │ │
│ └───────────────────────────────────────────────────────────┘ │
├───────────────────────────────────────────────────────────────┤
│ <Select> < Help > │
└───────────────────────────────────────────────────────────────┘ |
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papas
Tux's lil' helper
Joined: 01 Dec 2014
Posts: 141
Location: Athens
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| Posted: Sun Feb 24, 2019 6:53 am Post subject: |
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| Quote: | | Always a good idea to keep the old kernel handy in case the new one is so feature rich that it had to exclude booting. |
That's exactly what i did, finally i chose skylake, and everything went well.
| Quote: | | Interesting... I just downloaded vanilla kernel 5.0.0-rc7, but there's no option 'Skylake' in 'make menuconfig': |
As jaglover wrote you need gentoo-sources and the experimental flag.
Thank you guys. |
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