[ACPI] Suspend 2 ram gone with latest bk-acpi patch

[Norbert P. <pre...@lo...>]

Hi ACPI developers!

I am using suspend to ram successfully wiht 2.6.11-mm4 and prior
incarnations, but since 2.6.12-rc1-mm1 the laptop does not wake up after
suspend to ram. With 2.6.11-mm4 it is still working with exactely the
same setup.

I unload the whole usb stuff (otherwise 2.6.11-mm4 won't work) and do
exactely the same.

The differences in the kernel config files are trivial:

new stuff I answered with yes:
+CONFIG_ACPI_HOTKEY=y
+CONFIG_PCMCIA_IOCTL=y
+CONFIG_AOE_PARTITIONS=16

stuff that has automatically changed (changed Kconfig I suppose)
-CONFIG_FW_LOADER=m
+CONFIG_FW_LOADER=y

and some modules I compiled but not use/load.

With 2.6.12-rc1-mm1 the system starts, then nothing, black screen, no
CapsLock light, no Sysrq, no sync hard disk led activity, just plane
frozen.

I suspect that this is related to the big changes in ACPI code (I am
also seeing a lot of new messages while booting from the ACPI subsystem
like:
ACPI: Can't get handler for 0000:00:00.0
ACPI: No ACPI bus support for 00:01
ACPI: No ACPI bus support for 1-0:1.0
etc

Can you confirm that this may be the cause of the recent problems, and
what kind of tests can I make to confirm it?

Thanks a lot and all the best

Norbert

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Norbert Preining <preining AT logic DOT at>                 Università di Siena
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