Kernel Bug Tracker – Bug 8493
2.6.21 regression - BAT0 no longer seen, Method parse/execution failed [\_SB_.PCI0.SBRG.EC0_.BATS] - ASUSTek M6NE
Last modified: 2008-01-12 16:05:57 UTC
Most recent kernel where this bug did *NOT* occur: 2.6.20
Hardware Environment: ASUSTek M6NE
Problem Description: BAT0 no longer processed due to ACPI errors
Steps to reproduce: Boot on this model system:
ACPI Error (psparse-0537): Method parse/execution failed
[\_SB_.PCI0.SBRG.EC0_.BATS] (Node c147bf18), AE_NOT_EXIST
ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.BAT0._STA] (Node
Original bug report: https://launchpad.net/bugs/115029
Created attachment 11527 [details]
DSDT from machine
iasl doesn't report anything weird with this when recompiling, so assuming this
is a kernel bug rather than buggy BIOS.
also because battery is detected in kernel 2.6.20
I'm the submitter of Bug: http://bugzilla.kernel.org/show_bug.cgi?id=8477
which seems to be very similar. Could you perhaps check if it's the same bug ?
I also remember that in earlier Kernel versions I had to patch the kernel because of a
broken dsdt on my machine (I use an Asus M6N). Later on this patch wasn't necessary,
and I seem to have deleted it. Perhaps there was a change from 2.6.20 to 2.6.21 in that
yes, it is the same bug. the problem is definitely not the one you are telling,
because I have a bios which fixes that problem
Great ! Than I have not to worry finding that patch again ...
this also happen in fedora 7 with kernel 2.6.21!
accesses BATS through and Alias:
Alias (\_SB.PCI0.SBRG.EC0.BATS, BATS)
I wonder why the error message is printed EC0_ instead of EC0
Please attach the complete un-processed output from acpidump
Could you send requests to the actual submitter via
I've linked this bug in that bug report.
I'm the actual submitter don't worry
Please try the patch in comment#9 bug8598.
Will this patch be included if it works?
Created attachment 11885 [details]
I can confirm that I had the same regression with my machine, ASUS M6B00N, and after applying the patch, the battery shows normal again. I think it would be ok to pass it for inclusion in 2.6.23 if it's not too late yet.
i meant 2.6.22 of course.
I've also tried this patch and it works. You can include it in the main kernel tree!
Yes it also works for me and the patch still applies to 2.6.22 - it would be nice if someone could push it for mainline inclusion.... I'm scared by the imagination of applying this patch to every new kernel version...
I've noticed that the system is quite slow (comparing to 2.6.20) to notice that the AC cable is unplugged... 5 seconds! is it normal?
dup of bug# 8598. it's code fixed. the slow AC unplug dection isue, please open another bug. thanks.
*** This bug has been marked as a duplicate of bug 8598 ***