We have some new larger ia64 systems in HP that trip over the ACPI_MAX_REFERENCE_COUNT limit which triggers a large number of these debug messages: ACPI Warning (utdelete-0397): Large Reference Count (XXX) in object e0000a0ff6797ab0 [20060707] This was increased once in the past as described in this very brief thread: http://www.mail-archive.com/linux-acpi@xxxxxxxxxxxxxxx/msg00890.html signed-off-by: Doug Chapman <doug.chapman@xxxxxx> --- linux-2.6.20-rc1/include/acpi/acconfig.h.prev 2006-12-21 12:06:56.000000000 -0500 +++ linux-2.6.20-rc1/include/acpi/acconfig.h 2006-12-21 12:07:49.000000000 -0500 @@ -105,7 +105,7 @@ /* Maximum object reference count (detects object deletion issues) */ -#define ACPI_MAX_REFERENCE_COUNT 0x800 +#define ACPI_MAX_REFERENCE_COUNT 0x1000 /* Size of cached memory mapping for system memory operation region */ - 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