The _WAK error,
s4: HIGH Kernel message: [322397.358723] ACPI Error: Field [PMS1] access width
(1 bytes) too large for region [SWCR] (length 0) (20121018/exfldio-195)
s4: HIGH Kernel message: [322397.358724] ACPI Error: Field [PMS1]
Base+Offset+Width 2+0+1 is beyond end of region [SWCR] (length 0)
(20121018/exfldio-209)
s4: HIGH Kernel message: [322397.358727] ACPI Error: Method parse/execution
failed [\_SB_.PCI0.LPCB.SIOW] (Node ffff880427c4e8e8), AE_AML_REGION_LIMIT
(20121018/psparse-537)
s4: HIGH Kernel message: [322397.358729] ACPI Error: Method parse/execution
failed [\WAK_] (Node ffff880427c78460), AE_AML_REGION_LIMIT
(20121018/psparse-537)
s4: HIGH Kernel message: [322397.358731] ACPI Error: Method parse/execution
failed [\_WAK] (Node ffff880427c74988), AE_AML_REGION_LIMIT
(20121018/psparse-537)
s4: HIGH Kernel message: [322397.358734] ACPI Exception: AE_AML_REGION_LIMIT,
While executing method \_WAK (20121018/hwesleep-82)
This error seems to occur on
ACPI mehod,
Method (SIOW, 1, NotSerialized)
{
...
Store (0xFF, ^SIO1.PMS1)
...
}
write value to PMS1, but
beyond end of region [SWCR] (length 0)
OperationRegion (SWCR, SystemIO, IO2B, IO2L)
Field (SWCR, ByteAcc, NoLock, Preserve)
{
PMES, 1,
Offset (0x01),
PMEN, 1,
Offset (0x02),
PMS1, 8,
PMS2, 8,
PMS3, 8,
PME1, 8,
PME2, 8,
PME3, 8,
....
}
It seems the IO2L equal to 0.
because the define on,
Device (SIO1)
{
...
CreateByteField (CRS2, 0x02, IO2L)
CreateByteField (CRS2, 0x03, IO2H)
...
}
Need to check the IO2L value on firmware.
It might impact the S3 sleep/wake, need to be checked.
Because from the ACPI table, it seems that need to store a value to SIO1.PMS1,
but due to the acpi error, the value could not be set.
It might also be a false alarm, the HW actually no need to be set this value,
just the buggy firmware Acpi table need to be fixed.
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https://bugs.launchpad.net/bugs/1232975
Title:
[Dell Optiplex 9020] High kernel failures in suspend / hibernate log.
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