Re: kern/56554: ACPI Debug: "_TMP Method"

[Andreas Gustafsson <gson%gson.org@localhost>]

The following reply was made to PR kern/56554; it has been noted by GNATS.

From: Andreas Gustafsson <gson%gson.org@localhost>
To: Christos Zoulas <christos%zoulas.com@localhost>
Cc: gnats-bugs%netbsd.org@localhost
Subject: Re: kern/56554: ACPI Debug:  "_TMP Method"
Date: Sun, 19 Dec 2021 18:23:19 +0200

 Christos Zoulas wrote:
 > Looking at the string "ACPI Debug", it occurs twice in dist/executer/exdebug.c.
 > in function AcpiExDoDebugObject. This function returns immediately if
 > AcpiGbl_EnableAmlDebugObject is 0
 
 That's not the whole condition; the actual condition is:
 
     if (!AcpiGbl_EnableAmlDebugObject &&
         !(AcpiDbgLevel & ACPI_LV_DEBUG_OBJECT))
 
 ddb shows:
 
   db{0}> x/bx AcpiGbl_EnableAmlDebugObject
   netbsd:AcpiGbl_EnableAmlDebugObject:    0
   db{0}> x/lx AcpiDbgLevel
   netbsd:AcpiDbgLevel:    b
 
 ACPI_LV_DEBUG_OBJECT is 0x2, so (AcpiDbgLevel & ACPI_LV_DEBUG_OBJECT)
 is true, and the condition as a whole is false.
 -- 
 Andreas Gustafsson, gson%gson.org@localhost