hi all. what the belows mean ? this time kernel not compiles ??? arch/i386/kernel/kernel.o(.text.init+0x5268): In function `acpi_parse_lapic': : undefined reference to `acpi_table_print_madt_entry' arch/i386/kernel/kernel.o(.text.init+0x52d8): In function `acpi_parse_lapic_nmi': : undefined reference to `acpi_table_print_madt_entry' arch/i386/kernel/kernel.o(.text.init+0x53cf): In function `acpi_boot_init': : undefined reference to `acpi_table_init' arch/i386/kernel/kernel.o(.text.init+0x53e7): In function `acpi_boot_init': : undefined reference to `acpi_table_parse' arch/i386/kernel/kernel.o(.text.init+0x5412): In function `acpi_boot_init': : undefined reference to `acpi_table_parse_madt' arch/i386/kernel/kernel.o(.text.init+0x5447): In function `acpi_boot_init': : undefined reference to `acpi_table_parse_madt' arch/i386/kernel/kernel.o(.text.init+0x5465): In function `acpi_boot_init': : undefined reference to `acpi_table_parse_madt' make[1]: *** [kallsyms] Error 1 make[1]: Leaving directory `/usr/src/linux-2.4.22-1.2199.nptl' make: *** [vmlinux] Error 2 [root@localhost linux-2.4]# help please.