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[2001:1c00:c1e:bf00:1054:9d19:e0f0:8214]) by smtp.gmail.com with ESMTPSA id l8sm2050324edt.69.2021.06.03.10.26.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 03 Jun 2021 10:26:59 -0700 (PDT) To: "Rafael J . Wysocki" Cc: linux-acpi From: Hans de Goede Subject: Some SSDT tables are not loading with kernel >= 5.12 Message-ID: Date: Thu, 3 Jun 2021 19:26:59 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.10.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org Hi Rafael, I've been helping some users with trying to get to the bottom of some new ACPI errors with kernel 5.12, see: https://bugzilla.kernel.org/show_bug.cgi?id=213023 After looking at dmesg output; and after editing the dmesg output a bit so that I could do diff -u on it, the following stands out: --- dmesg_5.10.38-1-lts 2021-06-03 16:29:41.372922210 +0200 +++ dmesg_linux-5.12.5-arch1-1 2021-06-03 16:30:01.013031634 +0200 @@ -92,7 +92,7 @@ ACPI: IRQ9 used by override. Using ACPI (MADT) for SMP configuration information ACPI: HPET id: 0x8086a201 base: 0xfed00000 -ACPI: Core revision 20200925 +ACPI: Core revision 20210105 PM: Registering ACPI NVS region [mem 0x7156c000-0x7156cfff] (4096 bytes) PM: Registering ACPI NVS region [mem 0x8a88f000-0x8af7efff] (7274496 bytes) ACPI FADT declares the system doesn't support PCIe ASPM, so disable it @@ -113,10 +113,6 @@ ACPI: Dynamic OEM Table Load: ACPI: SSDT 0xFFFF... 0003FF (v02 PmRef Cpu0Cst 00003001 INTL 20160527) ACPI: Dynamic OEM Table Load: -ACPI: SSDT 0xFFFF... 0000BA (v02 PmRef Cpu0Hwp 00003000 INTL 20160527) -ACPI: Dynamic OEM Table Load: -ACPI: SSDT 0xFFFF... 000628 (v02 PmRef HwpLvt 00003000 INTL 20160527) -ACPI: Dynamic OEM Table Load: ACPI: SSDT 0xFFFF... 000D14 (v02 PmRef ApIst 00003000 INTL 20160527) ACPI: Dynamic OEM Table Load: ACPI: SSDT 0xFFFF... 000317 (v02 PmRef ApHwp 00003000 INTL 20160527) Note how for some reason the kernel is no longer loading the Cpu0Hwp and HwpLvt SSDT-s ? Do you have any ideas what might be causing this ? Regards, Hans