https://bugzilla.kernel.org/show_bug.cgi?id=105351
Bug ID: 105351
Summary: AcpiEnable failed
Product: ACPI
Version: 2.5
Kernel Version: 4.3.0-rc3
Hardware: i386
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: ACPICA-Core
Assignee: [email protected]
Reporter: [email protected]
Regression: Yes
Created attachment 189271
--> https://bugzilla.kernel.org/attachment.cgi?id=189271&action=edit
Full dmesg
In 4.3 merge, an ACPI patch was merged that breaks ACPI enabling on one of my
PC-s. It's a Pentium III, i815 chipset, Packard Bell branded BIOS.
I bisected it to the following commit:
8ec3f459073e67e5c6d78507dec693064b3040a2 is the first bad commit
commit 8ec3f459073e67e5c6d78507dec693064b3040a2
Author: Lv Zheng <[email protected]>
Date: Tue Aug 25 10:29:01 2015 +0800
ACPICA: Tables: Fix global table list issues by removing fixed table
indexes
ACPICA commit c0b38b4c3982c2336ee92a2a14716107248bd941
The fixed table indexes leave holes in the global table list:
1. One hole can be seen when there is only 1 FACS provided by the BIOS.
2. Tow holes can be seen when it is a reduced hardware platform.
The holes do not break OSPMs but have broken ACPI debugger "tables"
command.
Also the "fixed table indexes" mechanism may make the descriptors of the
standard tables installed earlier than DSDT to be overwritten by the
descriptors of the fixed tables. For example, FACP disappears from the
global table list after DSDT is installed.
This patch fixes all above issues by removing the "fixed table indexes"
mechanism which is too complicated to be maintained in a regression safe
manner. After removal, the table loader will determine the indexes of the
fixed tables. Lv Zheng.
Link: https://github.com/acpica/acpica/commit/c0b38b4c
Signed-off-by: Lv Zheng <[email protected]>
Signed-off-by: Bob Moore <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
:040000 040000 0c3bbd0eca80e79fcf6f265cfc98f38b51b3a807
46d34d3ce537aff081694b0ad511a5ae00771b86 M drivers
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