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Oleksa75
n00b
Joined: 18 Oct 2021
Posts: 17
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 Posted: Tue Nov 19, 2024 1:53 pm Post subject: Kernel 6.12 - booting hanged in real PREEMPT_RT mode |
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Hello there!
As we know, the real big one for release 6.12 is the enabling of PREEMPT_RT, implementing real-time computing capabilities.
Kernel from Gentoo repos was compiled OK, but I am unable to boot with it - the process hanging with strange phrases smth like "group root:root is invalid".
Please, can you help me to build an investigation plan and find the root of the reason?
Thanks! |
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CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3867
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| Posted: Tue Nov 19, 2024 5:19 pm Post subject: |
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Been manually maintaining a specific branch of gentoo-sources with rt flavor for about a decade with almost no upgrade issue.
Migrating 6.11.1 .config to 6.12.0 currently fails to boot.
Console is frozen.
More work is needed for better understanding.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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Hu
Administrator
Joined: 06 Mar 2007
Posts: 22686
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| Posted: Tue Nov 19, 2024 5:47 pm Post subject: Re: Kernel 6.12 - booting hanged in real PREEMPT_RT mode |
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| Oleksa75 wrote: | As we know, the real big one for release 6.12 is the enabling of PREEMPT_RT, implementing real-time computing capabilities.
Kernel from Gentoo repos was compiled OK, but I am unable to boot with it |
Are you unable to boot any 6.12 kernel, or only unable to boot a PREEMPT_RT 6.12 kernel (but a non-PREEMPT_RT 6.12 kernel works fine)? | Oleksa75 wrote: | | - the process hanging with strange phrases smth like "group root:root is invalid". |
That does not seem like a kernel message. Please give us the exact message, and describe in more detail how you built the non-working kernel. What initramfs (if any) does it use? |
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CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3867
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| Posted: Tue Nov 19, 2024 6:10 pm Post subject: |
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All non rt 6.12.0 branches boot fine here.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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CaptainBlood
Advocate
Joined: 24 Jan 2010
Posts: 3867
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| Posted: Tue Nov 19, 2024 6:44 pm Post subject: |
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I rederived a minimal working 6.12.0 .config to rt.
6.12 rt system boots fine, but display-manager fails to start.
Skylake iGP here.
Thks 4 ur attention, interest & support.
_________________
USE="-* ..." in /etc/portage/make.conf here, i.e. a countermeasure to portage implicit braces, belt & diaper paradigm
LT: "I've been doing a passable imitation of the Fontana di Trevi, except my medium is mucus. Sooo much mucus. " |
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