Bug 426480

Summary: 2.6.23.9-85.fc8 kernel brings out more ACPI errors info in dmesg on toshiba laptop
Product: [Fedora] Fedora Reporter: Jason HU <huzhijiang>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED CURRENTRELEASE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: low Docs Contact:
Priority: low    
Version: 8   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Whiteboard:
Fixed In Version: 2.6.23.15-137.fc8 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2008-02-11 22:39:32 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
demsg of 2.6.23.8-63.fc8
none
dmesg of 2.6.23.9-85.fc8
none
acpidump output none

Description Jason HU 2007-12-21 14:29:51 UTC 
Description of problem:
 2.6.23.9-85.fc8 kernel brings out more ACPI error info in dmesg than
2.6.23.8-63.fc8. Shows below:

+ACPI Error (evregion-0316): No handler for Region [ERAM] (f7d0d4d8)
[EmbeddedControl] [20070126]
+ACPI Error (exfldio-0289): Region EmbeddedControl(3) has no handler [20070126]
+ACPI Exception (dswexec-0462): AE_NOT_EXIST, While resolving operands for
[OpcodeName unavailable] [20070126]
+ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.HTEV] (Node
f7d12e58), AE_NOT_EXIST
+ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.PCI0.LPC0.EC0_._REG] (Node f7d0cbe8), AE_NOT_EXIST

Version-Release number of selected component (if applicable):
kernel version  2.6.23.9-85.fc8

H/W environment:
Toshiba Laptop A135-S2386

I will add both dmesgs and the acpidump file for your reference.
Comment 1 Jason HU 2007-12-21 14:29:51 UTC 
Created attachment 290237 [details]
demsg of 2.6.23.8-63.fc8
Comment 2 Jason HU 2007-12-21 14:31:31 UTC 
Created attachment 290238 [details]
dmesg of  2.6.23.9-85.fc8
Comment 3 Jason HU 2007-12-21 14:33:01 UTC 
Created attachment 290239 [details]
acpidump output
Comment 4 Jason HU 2007-12-21 14:45:57 UTC 
Also, the brightness buttons (Fn+F6/F7) of toshiba a135-s2386 still not work
well(/proc/acpi/video/VGA/LCD/brightness works well, but pressing Fn+F6/F7 can
only makes brightness up to the highest level, the gnome-panel brightness applet
can not get laptop brightness). 

I knew there are some bug report about that issue and the new kernel
(2.6.23.9-85.fc8) do have workaround code in the acpi/ec.c, so I upgraded to the
new kernel, but now it seems that it does not help.
Comment 5 josip 2007-12-25 17:59:33 UTC 
Possibly related: Kernel 2.6.23.9-85.fc8 royally locks up on reboot, and
prevents BIOS from starting.  The only way to recover is to physically unplug
the machine for about a minute.  On the same machine (Intel D865PERL motherboard
& BIOS), previous kernel 2.6.23.8-63.fc8 reboots normally.  BTW, "acpi=off"
doesn't help, so the trouble with 2.6.23.9-85.fc8 may go beyond ACPI.

Again, 2.6.23.8-63.fc8 works normally but 2.6.23.9-85.fc8 doesn't.
Comment 6 Chuck Ebbert 2008-02-06 01:27:23 UTC 
Problems in comment #4 are a separate item and should be fixed in 2.6.23.14-132.
The EC messages should be fixed in 2.6.23.14-133
Comment 7 Fedora Update System 2008-02-11 03:34:21 UTC 
kernel-2.6.23.15-137.fc8 has been submitted as an update for Fedora 8
Comment 8 Fedora Update System 2008-02-11 22:39:08 UTC 
kernel-2.6.23.15-137.fc8 has been pushed to the Fedora 8 stable repository.  If problems still persist, please make note of it in this bug report.