ksymoops 2.4.1 on i686 2.4.9-13. Options used -V (default) -k /proc/ksyms (default) -l /proc/modules (default) -o /lib/modules/2.4.9-13/ (default) -m /boot/System.map-2.4.9-13 (default) Warning: You did not tell me where to find symbol information. I will assume that the log matches the kernel and modules that are running right now and I'll use the default options above for symbol resolution. If the current kernel and/or modules do not match the log, you can get more accurate output by telling me the kernel version and where to find map, modules, ksyms etc. ksymoops -h explains the options. Error (expand_objects): cannot stat(/lib/ext3.o) for ext3 Error (expand_objects): cannot stat(/lib/jbd.o) for jbd Warning (compare_maps): mismatch on symbol partition_name , ksyms_base says c01b5c80, System.map says c0156ea0. Ignoring ksyms_base entry Warning (compare_maps): mismatch on symbol nlmsvc_grace_period , lockd says d096fad4, /lib/modules/2.4.9-13/kernel/fs/lockd/lockd.o says d096ef3c. Ignoring /lib/modules/2.4.9-13/kernel/fs/lockd/lockd.o entry Warning (compare_maps): mismatch on symbol nlmsvc_ops , lockd says d096fad0, /lib/modules/2.4.9-13/kernel/fs/lockd/lockd.o says d096ef38. Ignoring /lib/modules/2.4.9-13/kernel/fs/lockd/lockd.o entry Warning (compare_maps): mismatch on symbol nlmsvc_timeout , lockd says d096fad8, /lib/modules/2.4.9-13/kernel/fs/lockd/lockd.o says d096ef40. Ignoring /lib/modules/2.4.9-13/kernel/fs/lockd/lockd.o entry Warning (compare_maps): mismatch on symbol nfs_debug , sunrpc says d092ed20, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092ea00. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol nfsd_debug , sunrpc says d092ed24, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092ea04. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol nlm_debug , sunrpc says d092ed28, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092ea08. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol rpc_debug , sunrpc says d092ed1c, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9fc. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol rpc_garbage_args , sunrpc says d092ecfc, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9dc. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol rpc_success , sunrpc says d092ecec, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9cc. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol rpc_system_err , sunrpc says d092ed00, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9e0. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol xdr_one , sunrpc says d092ece4, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9c4. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol xdr_two , sunrpc says d092ece8, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9c8. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol xdr_zero , sunrpc says d092ece0, /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o says d092e9c0. Ignoring /lib/modules/2.4.9-13/kernel/net/sunrpc/sunrpc.o entry Warning (compare_maps): mismatch on symbol proc_irda , irda says d090ad5c, /lib/modules/2.4.9-13/kernel/net/irda/irda.o says d090a3dc. Ignoring /lib/modules/2.4.9-13/kernel/net/irda/irda.o entry Warning (compare_maps): mismatch on symbol usb_devfs_handle , usbcore says d086ba00, /lib/modules/2.4.9-13/kernel/drivers/usb/usbcore.o says d086b520. Ignoring /lib/modules/2.4.9-13/kernel/drivers/usb/usbcore.o entry Warning (map_ksym_to_module): cannot match loaded module ext3 to a unique module object. Trace may not be reliable. Unable to handle kernel NULL pointer dereference at virtual address 00000000 c019758c *pde = 00000000 Oops: 0002 CPU: 0 EIP: 0010:[] Not tainted Using defaults from ksymoops -t elf32-i386 -a i386 EFLAGS: 00010246 eax: 00000000 ebx: c0f830e0 ecx: 00000006 edx: 00000000 esi: 00000000 edi: 00000000 ebp: 00000000 esp: c6effbdc ds: 0018 es: 0018 ss: 0018 Process mount (pid: 4533, stackpage=c6eff000) Stack: 00000000 00000000 00000000 c034f964 c17f08c0 00000000 c0197722 c034f964 c17f08c0 c013c9d5 c17f08c0 00000000 c034f964 00000000 c034f9a4 00000000 c0197d21 c034f9a4 00000000 00000001 00000008 0034f9a4 00000001 c62c4400 Call Trace: [] ide_build_dmatable [kernel] 0x32 [] ioctl_by_bdev [kernel] 0x95 [] ide_dmaproc [kernel] 0x131 [] __insmod_ide-cd_S.text_L14880 [ide-cd] 0x7c3 [] __insmod_ide-cd_S.text_L14880 [ide-cd] 0x1297 [] __insmod_ide-cd_S.text_L14880 [ide-cd] 0xe90 [] __insmod_ide-cd_S.text_L14880 [ide-cd] 0x1a59 [] start_request [kernel] 0x1a0 [] ide_do_request [kernel] 0x293 [] do_ide_request [kernel] 0xf [] generic_unplug_device [kernel] 0x1e [] __run_task_queue [kernel] 0x49 [] __wait_on_buffer [kernel] 0x56 [] batch_entropy_process [kernel] 0xb3 [] bread [kernel] 0x46 [] run_all_timers [kernel] 0x17 [] isofs_read_inode [kernel] 0x48 [] get_new_inode [kernel] 0xca [] find_nls [kernel] 0x3e [] iget4 [kernel] 0xd2 [] .rodata.str1.1 [kernel] 0x32f9 [] isofs_read_super [kernel] 0x52a [] __insmod_ide-cd_S.text_L14880 [ide-cd] 0x299a [] cdrom_get_next_writable_R3dbfcfc5 [cdrom] 0x18ae [] cdrom_select_disc_Rc5afb6d4 [cdrom] 0x100 [] get_sb_bdev [kernel] 0x203 [] do_kern_mount [kernel] 0xe4 [] do_add_mount [kernel] 0x23 [] do_mount [kernel] 0x13b [] __alloc_pages [kernel] 0xf [] copy_mount_options [kernel] 0x4c [] sys_mount [kernel] 0x7c [] system_call [kernel] 0x33 Code: f3 ab 8b 43 38 85 c0 89 46 04 74 0d 8b 43 34 25 ff 0f 00 00 >>EIP; c019758c <===== Trace; c0197722 Trace; c013c9d5 Trace; c0197d21 Trace; d0a6a823 <[ide-cd]cdrom_start_packet_command+63/160> Trace; d0a6b2f7 <[ide-cd]cdrom_start_read+a7/b0> Trace; d0a6aef0 <[ide-cd]cdrom_start_read_continuation+0/120> Trace; d0a6bab9 <[ide-cd]ide_do_rw_cdrom+f9/170> Trace; c018e500 Trace; c018e863 Trace; c018e8ff Trace; c018119e Trace; c011b8d9 <__run_task_queue+49/60> Trace; c01372a6 <__wait_on_buffer+56/90> Trace; c016da63 Trace; c0138566 Trace; c011f0b7 Trace; c015fe48 Trace; c01497fa Trace; c0161dbe Trace; c0149a72 Trace; c022eb5e Trace; c015f6da Trace; d0a6c9fa <[ide-cd]ide_cdrom_check_media_change_real+1a/50> Trace; d0a6756e <[cdrom].text.end+f2f/1a91> Trace; d0a62d00 <[cdrom]media_changed+40/80> Trace; c013b533 Trace; c013bac4 Trace; c014bd43 Trace; c014bfcb Trace; c013013f <__alloc_pages+f/a0> Trace; c014be3c Trace; c014c06c Trace; c0106f3b Code; c019758c 00000000 <_EIP>: Code; c019758c <===== 0: f3 ab repz stos %eax,%es:(%edi) <===== Code; c019758e 2: 8b 43 38 mov 0x38(%ebx),%eax Code; c0197591 5: 85 c0 test %eax,%eax Code; c0197593 7: 89 46 04 mov %eax,0x4(%esi) Code; c0197596 a: 74 0d je 19 <_EIP+0x19> c01975a5 Code; c0197598 c: 8b 43 34 mov 0x34(%ebx),%eax Code; c019759b f: 25 ff 0f 00 00 and $0xfff,%eax 18 warnings and 2 errors issued. Results may not be reliable.