Gericom Supersonic ACPI hang (smi_cmd)

[Ulrich Dobramysl <uli-do-RbZlAiThDcE@public.gmane.org>]

Hello there again!

I posted some days ago, that I have problems getting ACPI up and running 
  on my Gericom Laptop. The Kernel just hangs without any error message.
Arndt Schoenewald suggested some Kernel Configurations to me (thanks 
again!) , but none of them did work. It seems like I have a very rare 
Version of this laptop model, with a (very) broken BIOS.
So I tried to debug that myself. I'm not a very good C Programmer and 
have no clue about the ACPI specifications, so I cannot solve this 
problem myself.
I was able to trace down the hang where acpi_enable gets called and 
itself calls acpi_hw_set_mode. This goes into the function 
acpi_os_write_port(acpi_gbl_FADT->smi_cmd, (acpi_integer) 
acpi_gbl_FADT->acpi_enable, 8), where outb gets called with port 
acpi_gbl_FADT->smi_cmd and value acpi_gbl_FADT->acpi_enable.
I think there is something wrong with the address smi_cmd. I could not 
find the part in the code where it gets set.
Tell me if I can provide more information about this problem or something.

Ulrich Dobramysl



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