Module Name: src
Committed By: jruoho
Date: Sun Feb 28 12:57:11 UTC 2010
Modified Files:
src/sys/external/intel-public/acpica/dist/include/platform: acnetbsd.h
Log Message:
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 po...@.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 \
src/sys/external/intel-public/acpica/dist/include/platform/acnetbsd.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
