Date: Sun, 12 Jun 2022 17:02:03 +0900 (JST) From: Masachika ISHIZUKA <ish@amail.plala.or.jp> To: freebsd-current@freebsd.org Subject: Re: dmesg: ACPI Warning: Firmware issue warning spaming Message-ID: <20220612.170203.1570364119618551543.ish@amail.plala.or.jp> In-Reply-To: <CAFDf7U%2BHP1nOFRjBnO-EcgK9Nrw6PwC5GTaSGQPJenhe9etFbw@mail.gmail.com> References: <CAFDf7U%2BHP1nOFRjBnO-EcgK9Nrw6PwC5GTaSGQPJenhe9etFbw@mail.gmail.com>
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> I'm running CURRENT 8d95f500521 and I'm receiving loads of dmesg warnings:
> ---
> ACPI Warning: Firmware issue: Excessive sleep time (0x0000000000000010 ms >
> 10 ms) in ACPI Control Method (20220331/exsystem-347)
> ---
> Is there a way to silence it?
Hi.
I think these messages are only informational and make them easier
to miss more important messages.
My old machine's ACPI bios is worked at 20msec, so I did patch to
/usr/src/sys/contrib/dev/acpica/components/executer/exsystem.c like below.
% diff -ruN exsystem.c.orig exsystem.c
--- exsystem.c.orig 2022-04-03 07:18:33.339997000 +0900
+++ exsystem.c 2022-04-26 19:13:06.814856000 +0900
@@ -342,10 +342,10 @@
* Warn users about excessive sleep times, so ASL code can be improved to
* use polling or similar techniques.
*/
- if (HowLongMs > 10)
+ if (HowLongMs > 20)
{
ACPI_WARNING ((AE_INFO,
- "Firmware issue: Excessive sleep time (0x%8.8X%8.8X ms > 10 ms)"
+ "Firmware issue: Excessive sleep time (0x%8.8X%8.8X ms > 20 ms)"
" in ACPI Control Method",
ACPI_FORMAT_UINT64 (HowLongMs)));
}
--
Masachika ISHIZUKA
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