https://bugzilla.kernel.org/show_bug.cgi?id=97141
Bug ID: 97141
Summary: ACPI initialisation broken since 3.14-rc1 for some
mainboards.
Product: ACPI
Version: 2.5
Kernel Version: 3.14.x
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: BIOS
Assignee: [email protected]
Reporter: [email protected]
Regression: No
Created attachment 174841
--> https://bugzilla.kernel.org/attachment.cgi?id=174841&action=edit
full dmesg of broken ACPI after booting into 73f7d1c with applied c4e1acbb
We are running Linux on a lot of TYAN S8812 mainboards for some years now. It
always worked great. After upgrading the kernel to 3.14.x some days ago our KVM
keyboards stopped working. The reason seems to be that ACPI is not enabled
anymore:
[ 0.000552] ACPI: Core revision 20131115
[ 0.007292] ACPI: All ACPI Tables successfully acquired
[ 0.049357] ACPI Error: Hardware did not enter ACPI mode
(20131115/evxfevnt-113)
[ 0.049710] ACPI Warning: AcpiEnable failed (20131115/utxfinit-161)
[ 0.049977] ACPI: Unable to enable ACPI
This issue maybe related to: Bug 74551 as in both cases ACPI can not be enabled
- but since 3.13.x is in the list of broken kernels for bug 74551 and works for
us i opened this new bug.
git bisect found 73f7d1ca32638028e3271f54616773727e2f9f26 to be the first bad
commit for our issue.
some issues introduced with this commit were fixed in commit
c4e1acbb35e4a3838cdfc0e7f8237e844aff00b6
apparently this does not fix our issue (even if applied directly onto
73f7d1ca3263) (see attached dmesg).
it seems that acpi_early_init() is called to early for the tyan S8812
mainboard, while it is working fine on other mainboards we are running.
- BIOS version is 1.08 (latest, 2013/07/09)
- BIOS settings have been reset to defaults - still same issue.
what information can i provide to help to fix this issue?
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