NetBSD/sys/external/intel-public/acpica
jruoho cd85adf1c0 In preparation for partial modularization of the acpi(4) subtree.
* * *

XXX:	The internal memory tracking of ACPICA, available when
	ACPI_DBG_TRACK_ALLOCATIONS is defined, has been removed
	from ACPI_DEBUG.

	This is due to the instability of the ABI of ACPICA.

	If the memory tracking is enabled, ACPICA will insert a header
	to each memory allocation. As a consequence, when ACPI specific
	code is loaded as a kernel module and the running kernel has
	been compiled with ACPI_DEBUG, the result is an instant panic.
	This happens because of unaligned memory access when the code
	tries to use ACPI_FREE for a buffer obtained via ACPI_ALLOCATE,
	AcpiEvaluateObject(), and related calls.

	If the involved memory statistics are required, a separate constant
	ACPI_DEBUG_ALLOC is available in options(4) for ACPI_DEBUG kernels.

* * *

Discussed with, and ok'ed by, jmcneill@ and pooka@.
2010-02-28 12:57:11 +00:00
..
conf config glue for acpica 2009-08-18 16:38:51 +00:00
dist In preparation for partial modularization of the acpi(4) subtree. 2010-02-28 12:57:11 +00:00