ACPICA commit 4da56eeae0749dfe8491285c1e1fad48f6efafd8 The following commit temporarily disables correct 64-bit FADT addresses favor during the period the root cause of the bug is not fixed: Commit: 85dbd5801f62b66e2aa7826aaefcaebead44c8a6 ACPICA: Tables: Restore old behavor to favor 32-bit FADT addresses. With enough protections, this patch re-enables 64-bit FADT addresses by default. If regressions are reported against such change, this patch should be bisected and reverted. Note that 64-bit FACS favor and 64-bit firmware waking vector favor are excluded by this commit in order not to break OSPMs. Lv Zheng. Link: https://bugzilla.kernel.org/show_bug.cgi?id=74021 Link: https://github.com/acpica/acpica/commit/4da56eea Cc: 3.15.1+ <stable@xxxxxxxxxxxxxxx> # 3.15.1+ Reported-and-tested-by: Oswald Buddenhagen <ossi@xxxxxxx> Signed-off-by: Lv Zheng <lv.zheng@xxxxxxxxx> Signed-off-by: Bob Moore <robert.moore@xxxxxxxxx> --- include/acpi/acpixf.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 445fd1e..213ed7e 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -195,9 +195,9 @@ ACPI_INIT_GLOBAL(u8, acpi_gbl_do_not_use_xsdt, FALSE); * address. Although ACPICA adheres to the ACPI specification which * requires the use of the corresponding 64-bit address if it is non-zero, * some machines have been found to have a corrupted non-zero 64-bit - * address. Default is TRUE, favor the 32-bit addresses. + * address. Default is FALSE, do not favor the 32-bit addresses. */ -ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, TRUE); +ACPI_INIT_GLOBAL(u8, acpi_gbl_use32_bit_fadt_addresses, FALSE); /* * Optionally use 32-bit FACS table addresses. -- 1.7.10 -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
