Re: PROBLEM: boot hang on ASUS P2B-F (regression)

From: Borislav Petkov

Date: Sat Mar 21 2026 - 17:52:58 EST


On Sat, Mar 21, 2026 at 05:00:28PM -0400, Nick Bowler wrote:
> On Sat, Mar 21, 2026 at 09:43:21PM +0100, Borislav Petkov wrote:
> > Anyway, pls send .config, a dmesg from a successfully booting kernel and
> > /proc/cpuinfo.
>
> config and dmesg attached (both gzipped) from the successful boot of
> 7.0-rc4 after partially reverting the culprit.

I can't reproduce in qemu here because I don't think anyone has your hardware
anymore. I'd throw it in the trash if I were you. :-P

Anyway, since you're partially reverting, can you pls try reverting the
Intel-relevant hunks and narrow it down, if possible.

>From the looks of it, I'm thinking:

* comment out the intel_apply_cpu_quirks() call

* comment out this hunk

/*
* There are also broken BIOSes on some Pentium M and
* earlier systems:
*/
if (c->x86_vfm < INTEL_CORE_YONAH && mca_cfg.bootlog < 0)
mca_cfg.bootlog = 0;

in intel_apply_global_quirks()

as those two should be relevant to your machine.

That might tell us where to look.

Thx.

--
Regards/Gruss,
Boris.

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