Re: FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN(4)

From: Justin P. Mattock
Date: Sat Jan 10 2009 - 11:23:30 EST

Robert Hancock wrote:
Justin P. Mattock wrote:
I am seeing this in dmesg:
FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4)
not sure what this is.
(the only changes to .config was add kexec,
coredump, and relocatable kernel options.)

I take it that I'm unable to try this relocatable
kernel stuff out.(x86_32)?

regards;

Justin P. Mattock

I believe that indicates your BIOS's FADT table contains inconsistent data. You're sure that only happens with those options set?

Well, the positive side is kexec
does work on macbook pro
(doesn't play so well with the xserver,
garbled screen.).

As for the FADT table, I reverted to an old
.config that has no new options in it, and sure enough
that message appeared. Looking back in my logs,
the last kernel commit I have is:
2.6.28-07485-g9e42d0c
that doesn't show such messages.

When examining this message
(not too familiar with FADT)
I see PM leading me to believe this maybe has to
do with the PM stuff.
(making me wonder, if this is the reason
suspend isn't working.just a black screen
upon wakeup); but like I said I'm not
familiar with that area.
heres what I see:

[ 0.000000] ACPI: RSDP 000FE020, 0024 (r2 APPLE )
[ 0.000000] ACPI: XSDT 3FEFD1C0, 0074 (r1 APPLE Apple00 A5 1000013)
[ 0.000000] ACPI: FACP 3FEFB000, 00F4 (r3 APPLE Apple00 A5 Loki 5F)
[ 0.000000] FADT: X_PM1a_EVT_BLK.bit_width (16) does not match PM1_EVT_LEN (4)
[ 0.000000] ACPI: DSDT 3FEF0000, 48D1 (r1 APPLE MacBookP 20002 INTL 20050309)
[ 0.000000] ACPI: FACS 3FEC0000, 0040
[ 0.000000] ACPI: HPET 3FEFA000, 0038 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: APIC 3FEF9000, 0068 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: MCFG 3FEF8000, 003C (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: ASF! 3FEF7000, 00A0 (r32 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: SBST 3FEF6000, 0030 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: ECDT 3FEF5000, 0053 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: SSDT 3FEEF000, 04DC (r1 APPLE CpuPm 3000 INTL 20050309)
[ 0.000000] ACPI: SSDT 3FEBD000, 064F (r1 SataRe SataPri 1000 INTL 20050309)
[ 0.000000] ACPI: SSDT 3FEBC000, 069C (r1 SataRe SataSec 1000 INTL 20050309)
[ 0.000000] ACPI: Local APIC address 0xfee00000

and looking at
2.6.28-07485-g9e42d0c

[ 0.000000] ACPI: RSDP 000FE020, 0024 (r2 APPLE )
[ 0.000000] ACPI: XSDT 3FEFD1C0, 0074 (r1 APPLE Apple00 A5 1000013)
[ 0.000000] ACPI: FACP 3FEFB000, 00F4 (r3 APPLE Apple00 A5 Loki 5F)
[ 0.000000] ACPI: DSDT 3FEF0000, 48D1 (r1 APPLE MacBookP 20002 INTL 20050309)
[ 0.000000] ACPI: FACS 3FEC0000, 0040
[ 0.000000] ACPI: HPET 3FEFA000, 0038 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: APIC 3FEF9000, 0068 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: MCFG 3FEF8000, 003C (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: ASF! 3FEF7000, 00A0 (r32 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: SBST 3FEF6000, 0030 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: ECDT 3FEF5000, 0053 (r1 APPLE Apple00 1 Loki 5F)
[ 0.000000] ACPI: SSDT 3FEEF000, 04DC (r1 APPLE CpuPm 3000 INTL 20050309)
[ 0.000000] ACPI: SSDT 3FEBD000, 064F (r1 SataRe SataPri 1000 INTL 20050309)
[ 0.000000] ACPI: SSDT 3FEBC000, 069C (r1 SataRe SataSec 1000 INTL 20050309)
[ 0.000000] ACPI: Local APIC address 0xfee00000


My main concern is making sure
the machine is going to be O.K.
when in this state, or should I revert
to a stable kernel(2.6.28) until things get
worked out?

regards;

Justin P. Mattock
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