With LPSS enumeration configured in the firmware to "ACPI Mode", the following ACPI warnings, errors, and exceptions are report by the Linux kernel at boot. Firmware Image: 6/17 root@intel-corei7-64:~# dmidecode | grep -e "^BIOS Inf" -A2 BIOS Information Vendor: Intel Corp. Version: MNW2CRB1.X64.0071.D30.1406171531 OS IMage: 5/13 root@intel-corei7-64:~# dmesg | grep "\(ACPI \([EW]\|: EC\)\|_CRS\)" root@intel-corei7-64:~# dmesg | grep "\(ACPI \([EW]\|: EC\)\|_CRS\)" [ 0.739103] ACPI : EC: input buffer is not empty, aborting transaction [ 0.746426] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20131218/evregion-282) [ 0.746441] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.H_EC._REG] (Node ffff880075029960), AE_TIME (20131218/psparse-536) [ 0.746499] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20131218/hwxface-580) [ 0.746511] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20131218/hwxface-580) [ 0.882882] ACPI : EC: GPE = 0x18, I/O: command/status = 0x66, data = 0x62 [ 0.913257] pnp 00:06: unknown resource type 19 in _CRS [ 0.913266] pnp 00:06: can't evaluate _CRS: 1 [ 0.918941] pnp 00:07: unknown resource type 17 in _CRS [ 0.918948] pnp 00:07: can't evaluate _CRS: 1 [ 0.924038] pnp 00:08: unknown resource type 17 in _CRS [ 0.924044] pnp 00:08: can't evaluate _CRS: 1 [ 0.929149] pnp 00:09: unknown resource type 17 in _CRS [ 0.929156] pnp 00:09: can't evaluate _CRS: 1 [ 0.934348] pnp 00:0a: unknown resource type 19 in _CRS [ 0.934356] pnp 00:0a: can't evaluate _CRS: 1 [ 0.939869] pnp 00:0b: unknown resource type 19 in _CRS [ 0.939877] pnp 00:0b: can't evaluate _CRS: 1 [ 1.555700] ACPI : EC: input buffer is not empty, aborting transaction [ 1.563134] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20131218/evregion-282) [ 1.563150] ACPI Error: Method parse/execution failed [\_SB_.LID0._LID] (Node ffff880075029bb8), AE_TIME (20131218/psparse-536) [ 2.070372] ACPI : EC: input buffer is not empty, aborting transaction [ 2.578032] ACPI : EC: input buffer is not empty, aborting transaction [ 3.085691] ACPI : EC: input buffer is not empty, aborting transaction [ 3.593348] ACPI : EC: input buffer is not empty, aborting transaction [ 3.600668] ACPI Exception: AE_TIME, Returned by Handler for [EmbeddedControl] (20131218/evregion-282) [ 3.600689] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.H_EC.BAT1._BIX] (Node ffff880075029898), AE_TIME (20131218/psparse-536) [ 3.600720] ACPI Exception: AE_TIME, Evaluating _BIX (20131218/battery-416) [ 6.963788] ACPI Warning: SystemIO range 0x0000000000002000-0x000000000000201f conflicts with OpRegion 0x0000000000002000-0x000000000000200f (\_SB_.PCI0.SBUS.SMBI) (20131218/utaddress-258) Note that these are similar, but not identical to those reported in Bug 6471. In particular, not the addition of the various messages related to _CRS.
With the 07-10 firmware image in ACPI mode, I still observe the following: root@intel-corei7-64:~# dmesg | grep "\(ACPI \([EW]\|: EC\)\|_CRS\)" [ 0.229392] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S1_] (20131218/hwxface-580) [ 0.229406] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20131218/hwxface-580) [ 0.392650] pnp 00:06: unknown resource type 19 in _CRS [ 0.392658] pnp 00:06: can't evaluate _CRS: 1 [ 0.398836] pnp 00:07: unknown resource type 19 in _CRS [ 0.398844] pnp 00:07: can't evaluate _CRS: 1 [ 2.972767] ACPI Warning: SystemIO range 0x0000000000002000-0x000000000000201f conflicts with OpRegion 0x0000000000002000-0x000000000000200f (\_SB_.PCI0.SBUS.SMBI) (20131218/utaddress-258)
Still present in 0.73
*** Bug 6717 has been marked as a duplicate of this bug. ***
With the Firmware 0.74 release, with the exception of: [ 0.669367] ACPI Exception: AE_NOT_FOUND, While evaluating Sleep State [\_S2_] (20140724/hwxface-580) All of the problematic messages listed here are not longer observed. The above message is covered by Bug 6471. Closing this as FIXED. Thanks!