[Bug 221065] ideapad_acpi: unexpected charge_types spam on Yoga Pro 7 14ASP9

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=221065

--- Comment #31 from Avraham Hollander (anhollander516@gmail.com) ---
(In reply to Rong Zhang from comment #29)
> (In reply to Avraham Hollander from comment #27)
> 
> Thanks for your test.
> 
> > It did not. Unplugging and replugging the charger a bunch of times results
> > in:
> > [...]
> 
> Ahh, my fault. I meant fixing the issue that ideapad-laptop misinterprets
> the error returned by the GBMD method as a valid return value. According to
> your log, the patch seems correct.
> 
> As for the issue of the mutex chaos (and hence the error logs you got), we
> can't really fix it from the kernel side. It can only be fixed by a BIOS
> update. That's why I added Mark to the CC list.
> 
> I've seen GBMD, SALS, SBMC, and DYTC calling ECCC. I think we will have to
> add a DMI quirk disabling most (if not all) features of ideapad-laptop on
> 83DR until a BIOS update fixes the mutex bug. Doing so should make the mutex
> less likely to break. As a quick test, could you test if blacklisting
> ideapad-laptop in modprobe.d (reboot required, ofc) helps?
> 
> (In reply to Avraham Hollander from comment #28)
> > Is there anything you notice in there that could potentially cause the
> > system to take excessively long (2-6 seconds) to resume from s2idle? That's
> > another probably ACPI issue that I've always had. This is almost certainly
> > unrelated to the charger bug and I don't want to go completely off topic,
> > but I figure it's worth mentioning now that I have contact with the
> relevant
> > people.
> 
> I guess this is also related to the mutex bug in DSDT, considering it has a
> bunch of EC queries calling ECCC. Blacklisting ideapad-laptop may have some
> help, as doing so reduces the probability of running into a race condition.
> 
> I am not really familiar with s2idle and EC queries, so I may not be the
> best person to answer this. Armin, do you have any thoughts?

I can't get it to trigger either way now, whether ideapad_laptop is loaded or
not. Could the cause be that my battery is fully charged now? I'm going to
discharge it some and try it again.

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