ACPI: System description tables found ACPI: System description tables loaded Unable to handle kernel NULL pointer dereference at virtual address 00000010 printing eip: c01d7583 *pde = 00000000 Oops: 0000 CPU: 0 EIP: 0010:[acpi_ns_get_next_object+19/76] EFLAGS: 00010246 eax: 00000000 ebx: 00000000 ecx: 54594247 edx: 00000000 esi: 00000000 edi: 0000008d ebp: 00000000 esp: cbf33f34 ds: 0018 es: 0018 ss: 0018 Process kacpid (pid: 7, stackpage=cbf33000) Stack: 00000000 c01d75fb 00000000 00000000 00000000 c01ce2f4 ffffffff cbf32331 cbf32000 08010646 c01d7d16 00000008 cbf3afc0 ffffffff 00000001 c01ce2f4 00000000 00000000 00000008 00000000 c0269e55 c01ce39c 00000008 cbf3afc0 Call Trace: [acpi_ns_walk_namespace+63/260] [acpi_ev_save_method_info+0/120] [acpi_walk_namespace+70/92] [acpi_ev_save_method_info+0/120] [_acpi_ctype+12949/25696] [acpi_ev_init_gpe_control_methods+48/56] [acpi_ev_save_method_info+0/120] [acpi_ev_initialize+74/100] [acpi_enable_subsystem+62/104] [acpi_thread+163/540] [empty_bad_page+0/4096] [empty_bad_page+0/4096] [startup_32+24/203] [kernel_thread+26/48] [kernel_thread+35/48] Code: 8b 40 10 85 c0 74 11 89 c2 eb 0d 89 f6 50 e8 be ff ff ff 89 Disassembly: (gdb) x/30i acpi_ns_get_next_object 0xc01d7570 : push %ebx 0xc01d7571 : xor %edx,%edx 0xc01d7573 : mov 0x10(%esp,1),%eax 0xc01d7577 : mov 0x8(%esp,1),%bl 0xc01d757b : test %eax,%eax 0xc01d757d : jne 0xc01d7590 0xc01d757f : mov 0xc(%esp,1),%eax 0xc01d7583 : mov 0x10(%eax),%eax 0xc01d7586 : test %eax,%eax 0xc01d7588 : je 0xc01d759b 0xc01d758a : mov %eax,%edx 0xc01d758c : jmp 0xc01d759b 0xc01d758e : mov %esi,%esi 0xc01d7590 : push %eax 0xc01d7591 : call 0xc01d7554 0xc01d7596 : mov %eax,%edx 0xc01d7598 : add $0x4,%esp 0xc01d759b : test %bl,%bl 0xc01d759d : jne 0xc01d75b3 0xc01d759f : mov %edx,%eax 0xc01d75a1 : jmp 0xc01d75b9 0xc01d75a3 : cmp %bl,0x1(%edx) 0xc01d75a6 : je 0xc01d759f 0xc01d75a8 : push %edx 0xc01d75a9 : call 0xc01d7554 0xc01d75ae : mov %eax,%edx 0xc01d75b0 : add $0x4,%esp 0xc01d75b3 : test %edx,%edx 0xc01d75b5 : jne 0xc01d75a3 0xc01d75b7 : xor %eax,%eax (gdb) quit