This is a Dell Vostro 3491 notebook running the latest UEFI firmware. The following ACPI-related error messages appear shortly after logging into my desktop environment: [ 54.771734] ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT, Index (0x00000003D) is beyond end of object (length 0x10) (20200110/exoparg2-393) [ 54.771752] ACPI Error: Aborting method \_SB.GINF due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.771756] ACPI Error: Aborting method \_SB.GADR due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.771759] ACPI Error: Aborting method \_SB.SGOV due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.771762] ACPI Error: Aborting method \_SB.CGWR due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.771764] ACPI Error: Aborting method \_SB.TBFP due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.771768] ACPI Error: Aborting method \_SB.WMTF.WMTF due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.776046] ACPI BIOS Error (bug): AE_AML_PACKAGE_LIMIT, Index (0x00000003D) is beyond end of object (length 0x10) (20200110/exoparg2-393) [ 54.776062] ACPI Error: Aborting method \_SB.GINF due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.776066] ACPI Error: Aborting method \_SB.GADR due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.776069] ACPI Error: Aborting method \_SB.SGOV due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.776072] ACPI Error: Aborting method \_SB.CGWR due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.776075] ACPI Error: Aborting method \_SB.TBFP due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) [ 54.776079] ACPI Error: Aborting method \_SB.WMTF.WMTF due to previous error (AE_AML_PACKAGE_LIMIT) (20200110/psparse-529) There are no obvious adverse effects. Seen on the current Fedora kernel kernel-5.6.13-300.fc32.x86_64, but also present when I tried long-term 5.4 and 4.19 kernels. Another one I've seen is the following: [ 7769.786461] ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.LPCB.HEC.ECAV], AE_NOT_FOUND (20200110/psargs-330) [ 7769.786472] ACPI Error: Aborting method \_TZ.FNCL due to previous error (AE_NOT_FOUND) (20200110/psparse-529) [ 7769.786482] ACPI Error: Aborting method \_TZ.FN00._ON due to previous error (AE_NOT_FOUND) (20200110/psparse-529) which seems related to fan control. I saw it when I tried echo 1 > /sys/class/thermal/cooling_device0/cur_state (The fan seems to be otherwise firmware controlled anyway.) Obviously these may very well be legit firmware bugs, but I'd rather run it past the experts before I take it to Dell. Let me know what table dumps etc. will be required.
Please attach the full acpidump output. say, "./acpidump > acpidump.out"
Created attachment 289789 [details] acpidump for Vostro 3491 acpidump, as requested
Created attachment 289853 [details] updated acpidump from latest firmware Got BIOS 1.9.1 update today, still get the same error messages. acpidump from firmware 1.9.1 attached.
This seems to be fixed with kernel 5.7.14 and BIOS 1.10.1.