[haiku-bugs] Re: [Haiku] #5449: ACPI: AcpiInitializeTables fails on Acer Aspire One AOA110

  • From: "phoudoin" <trac@xxxxxxxxxxxx>
  • Date: Mon, 01 Mar 2010 12:22:37 -0000

#5449: ACPI: AcpiInitializeTables fails on Acer Aspire One AOA110
 Reporter:  vegardw       |       Owner:  nobody        
     Type:  bug           |      Status:  new           
 Priority:  normal        |   Milestone:  R1            
Component:  Drivers/ACPI  |     Version:  R1/Development
 Keywords:                |   Blockedby:                
 Platform:  All           |    Blocking:                

Comment(by phoudoin):

 Sounds more and more related to unmapping physical memmory.

 vegardw, siarzhuk, could your try after commenting the RSDP table unmap
 in src/add-
 ons/kernel/bus_managers/acpi/tables/tbutils.c#AcpiTbParseRootTable, near
 line 649:

     /* It is not possible to map more than one entry in some environments,
      * so unmap the RSDP here before mapping other tables
 -   AcpiOsUnmapMemory (Rsdp, sizeof (ACPI_TABLE_RSDP));
 +   /* AcpiOsUnmapMemory (Rsdp, sizeof (ACPI_TABLE_RSDP)); */

 If this unmap do something wrong, without it you should at least see a
 different syslog line corresponding to the RSDT/XSDT, less clearly broken
 than the one you currently got:
 KERN: ACPI:      0xbf7f5d17 00000 (v00                 00000000

 Could be related to MTRR while unmapping, too...

Ticket URL: <http://dev.haiku-os.org/ticket/5449#comment:23>
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