Re: Something seems to be wrong with my RSDP

[Dean Townsley <dean-5NrKhQnM7FRWk0Htik3J/w@public.gmane.org>]

Hi Heiko,

I'm glad you've worked on this.  I've never had a chance to fix up the
dsdt table.  I was able to get the kernel to ignore the RSDP checksum
error with patch below.

I did this because the 2.4.20 + some old acpi patch that has been
working for years on the c100 always had this "Invalid checksum"
error, but worked anyway.  Comparing the code, the old patch didn't
disable acpi if the RSDP table failed to parse properly, it just
skipped some stuff and went on.  I don't know if this is right (or a
really bad idea for that matter) but at least it gets it to load and
use the DSDT.

Could you send me the DSDT you've fixed so I could try it out too :)

Thanks,
-Dean


diff -ur linux-2.6.11-orig/arch/i386/kernel/acpi/boot.c linux-2.6.11/arch/i386/kernel/acpi/boot.c
--- linux-2.6.11-orig/arch/i386/kernel/acpi/boot.c	Wed Mar  2 01:38:25 2005
+++ linux-2.6.11/arch/i386/kernel/acpi/boot.c	Sun May  8 17:01:44 2005
@@ -849,7 +849,7 @@
 	 */
 	error = acpi_table_init();
 	if (error) {
-		disable_acpi();
+		/* disable_acpi(); */ 
 		return error;
 	}
 
diff -ur linux-2.6.11-orig/arch/i386/kernel/setup.c linux-2.6.11/arch/i386/kernel/setup.c
--- linux-2.6.11-orig/arch/i386/kernel/setup.c	Wed Mar  2 01:38:08 2005
+++ linux-2.6.11/arch/i386/kernel/setup.c	Sun May  8 17:04:32 2005
@@ -1461,8 +1461,8 @@
 	/*
 	 * Parse the ACPI tables for possible boot-time SMP configuration.
 	 */
-	acpi_boot_table_init();
-	acpi_boot_init();
+	if (acpi_boot_table_init()==0)
+		acpi_boot_init();
 
 #ifdef CONFIG_X86_LOCAL_APIC
 	if (smp_found_config)


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