Latest working kernel version: 2.6.24.3 Earliest failing kernel version: 2.6.25-rc4 Distribution: Ubuntu Hardware Environment: AMD64 Software Environment: - Problem Description: WARNING with backtrace during ACPI initialisation. Appears to happen while parsing the EC table. Steps to reproduce: Boot. I rebooted again just to be sure, and received the same WARNING.
Created attachment 15185 [details] Complete boot log, including WARNING
Created attachment 15186 [details] Kernel configuration
You don't have ECDT, so not parsing of EC table is possible. Warning happens then we do scan of DSDT for EC device. Please send output from acpidump.
Created attachment 15191 [details] acpidump output Here it is
Looks like fcea424d31868a78366ad5ee0cb3cc2a4cbe689b is to be blamed.
It also looks possible to just drop changes to ioremap.c to return to pre-patch behavior of ACPI/EC.
(In reply to comment #5) > Looks like fcea424d31868a78366ad5ee0cb3cc2a4cbe689b is to be blamed. commit fcea424d31868a78366ad5ee0cb3cc2a4cbe689b Author: Arjan van dev Ven <arjan@linux.intel.com> Date: Wed Feb 6 05:16:00 2008 +0100 fix historic ioremap() abuse in AGP Arjan, Ingo, Andrew, are we going to fix that somehow before 2.6.25?
*** This bug has been marked as a duplicate of bug 10104 ***