nautilus-dbg_2.13.3-0ubuntu5_i386.deb is not vailable now. So I only installed libc6-dbg. Followed is the debug info: root@ubuntu-2:/home/cqin# LD_LIBRARY_PATH=/usr/lib/debug:$LD_LIBRARY_PATH gdb na utilus GNU gdb 6.3.90_20051119-debian Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. Type "show copying" to see the conditions. There is absolutely no warranty for GDB. Type "show warranty" for details. This GDB was configured as "i486-linux-gnu"...(no debugging symbols found) Using host libthread_db library "/usr/lib/debug/libthread_db.so.1". (gdb) handle SIG33 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) run Starting program: /usr/bin/nautilus (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) ---Type to continue, or q to quit--- (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread 16384 (LWP 17224)] (nautilus:17224): GnomeUI-WARNING **: While connecting to session manager: Authentication Rejected, reason : None of the authentication protocols specified are supported and host-based authentication failed. [New Thread 32769 (LWP 17230)] [New Thread 16386 (LWP 17231)] [New Thread 32771 (LWP 17242)] [New Thread 49156 (LWP 17243)] [New Thread 65541 (LWP 17244)] [New Thread 81926 (LWP 17245)] [New Thread 98311 (LWP 17246)] [Thread 32771 (LWP 17242) exited] [Thread 65541 (LWP 17244) exited] [Thread 81926 (LWP 17245) exited] [Thread 98311 (LWP 17246) exited] [Thread 49156 (LWP 17243) exited] [New Thread 114691 (LWP 17253)] [New Thread 131076 (LWP 17254)] [Thread 131076 (LWP 17254) exited] [Thread 114691 (LWP 17253) exited] [New Thread 147459 (LWP 17313)] [New Thread 163844 (LWP 17314)] [New Thread 180229 (LWP 17315)] [New Thread 196614 (LWP 17316)] [Thread 163844 (LWP 17314) exited] [Thread 180229 (LWP 17315) exited] [Thread 147459 (LWP 17313) exited] [New Thread 212995 (LWP 17317)] [Thread 196614 (LWP 17316) exited] [Thread 212995 (LWP 17317) exited] [New Thread 229379 (LWP 17320)] [New Thread 245764 (LWP 17321)] [Thread 229379 (LWP 17320) exited] [Thread 245764 (LWP 17321) exited] [New Thread 262147 (LWP 17323)] [New Thread 278532 (LWP 17324)] [New Thread 294917 (LWP 17325)] [Thread 262147 (LWP 17323) exited] [Thread 294917 (LWP 17325) exited] [New Thread 311299 (LWP 17326)] [Thread 278532 (LWP 17324) exited] [New Thread 327684 (LWP 17328)] [Thread 311299 (LWP 17326) exited] [New Thread 344067 (LWP 17329)] [Thread 327684 (LWP 17328) exited] [Thread 344067 (LWP 17329) exited] [New Thread 360451 (LWP 17331)] [Thread 360451 (LWP 17331) exited] [New Thread 376835 (LWP 17333)] [New Thread 393220 (LWP 17334)] [Thread 376835 (LWP 17333) exited] [Thread 393220 (LWP 17334) exited] [New Thread 409603 (LWP 17335)] [New Thread 425988 (LWP 17336)] [New Thread 442373 (LWP 17337)] [New Thread 458758 (LWP 17338)] [Thread 409603 (LWP 17335) exited] [Thread 458758 (LWP 17338) exited] [Thread 425988 (LWP 17336) exited] [New Thread 475139 (LWP 17341)] [Thread 442373 (LWP 17337) exited] [New Thread 491524 (LWP 17342)] [Thread 475139 (LWP 17341) exited] [New Thread 507907 (LWP 17351)] [Thread 491524 (LWP 17342) exited] [Thread 507907 (LWP 17351) exited] [New Thread 524291 (LWP 17352)] [Thread 524291 (LWP 17352) exited] [New Thread 540675 (LWP 17355)] [Thread 540675 (LWP 17355) exited] [New Thread 557059 (LWP 17356)] [Thread 557059 (LWP 17356) exited] [New Thread 573443 (LWP 17358)] [New Thread 589828 (LWP 17359)] [New Thread 606213 (LWP 17360)] [Thread 573443 (LWP 17358) exited] [Thread 589828 (LWP 17359) exited] [New Thread 622595 (LWP 17361)] [Thread 606213 (LWP 17360) exited] [Thread 622595 (LWP 17361) exited] [New Thread 638979 (LWP 17362)] [New Thread 655364 (LWP 17363)] [Thread 638979 (LWP 17362) exited] [New Thread 671747 (LWP 17364)] [Thread 655364 (LWP 17363) exited] [New Thread 688132 (LWP 17367)] [Thread 671747 (LWP 17364) exited] Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 16384 (LWP 17224)] 0xb74b3318 in *__GI___wcsxfrm_l (dest=0x0, src=0x8768778, n=0, l=0xb76fb19c) at strxfrm_l.c:215 215 strxfrm_l.c: No such file or directory. in strxfrm_l.c (gdb) thread apply all bt Thread 44 (Thread 688132 (LWP 17367)): #0 0xb76fa0b6 in nanosleep () from /usr/lib/debug/libpthread.so.0 #1 0x00000001 in ?? () #2 0xb76f5b84 in __pthread_timedsuspend_new (self=0xbf1ffbe0, abstime=0xbf1ffa14) at pthread.c:1364 #3 0xb76f21cd in __pthread_cond_timedwait (cond=0x83ab3a8, mutex=0x818fa48, abstime=0xbf1ffa14) at restart.h:45 #4 0xb73655dc in g_cond_timed_wait_posix_impl (cond=0x83ab3a8, entered_mutex=0x818fa48, abs_time=0xbf1ffa84) at gthread-posix.c:229 #5 0xb7677b01 in g_async_queue_pop_intern_unlocked (queue=0x818f928, try=, end_time=0xbf1ffa84) at gasyncqueue.c:338 #6 0xb76aaa6f in g_thread_pool_thread_proxy (data=0x818fa20) at gthreadpool.c:94 #7 0xb76a8db2 in g_thread_create_proxy (data=0x864a4a0) at gthread.c:582 #8 0xb76f2c8c in pthread_start_thread (arg=0xbf1ffbe0) at manager.c:310 #9 0xb76f2d15 in pthread_start_thread_event (arg=0xbf1ffbe0) at manager.c:334 #10 0xb74f526a in clone () from /usr/lib/debug/libc.so.6 Thread 3 (Thread 16386 (LWP 17231)): #0 0xb74ec4ce in *__GI___poll (fds=0xb754fa08, nfds=9, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:86 #1 0xb7690328 in g_main_context_iterate (context=0x81ee370, block=1, ---Type to continue, or q to quit--- dispatch=1, self=0x81ee118) at gmain.c:2846 #2 0xb76907f8 in IA__g_main_loop_run (loop=0x820f090) at gmain.c:2748 #3 0xb77b275e in link_thread_io_context () from /usr/lib/libORBit-2.so.0 #4 0xb76a8db2 in g_thread_create_proxy (data=0x81ee118) at gthread.c:582 #5 0xb76f2c8c in pthread_start_thread (arg=0xbf5ffbe0) at manager.c:310 #6 0xb76f2d15 in pthread_start_thread_event (arg=0xbf5ffbe0) at manager.c:334 #7 0xb74f526a in clone () from /usr/lib/debug/libc.so.6 Thread 2 (Thread 32769 (LWP 17230)): #0 0xb74ec4ce in *__GI___poll (fds=0xb754fa08, nfds=1, timeout=2000) at ../sysdeps/unix/sysv/linux/poll.c:86 #1 0xb76f31f9 in __pthread_manager (arg=0x1f5) at manager.c:152 #2 0xb76f3b1b in __pthread_manager_event (arg=0xb76fb440) at manager.c:249 #3 0xb74f526a in clone () from /usr/lib/debug/libc.so.6 Thread 1 (Thread 16384 (LWP 17224)): #0 0xb74b3318 in *__GI___wcsxfrm_l (dest=0x0, src=0x8768778, n=0, l=0xb76fb19c) at strxfrm_l.c:215 #1 0xb74b2451 in wcsxfrm (dest=0xb76fb19c, src=0xb76fb19c, n=3077550492) at strxfrm.c:32 #2 0xb76affc1 in IA__g_utf8_collate_key ( str=0x8768750 "?м??? (invalid Unicode)", len=-1217416804) at gunicollate.c:196 ---Type to continue, or q to quit--- #3 0xb76b0379 in IA__g_utf8_collate_key_for_filename ( str=0x8768750 "?м??? (invalid Unicode)", len=-1) at gunicollate.c:459 #4 0x080e763b in nautilus_file_get_uri () #5 0x080e76bf in nautilus_file_get_uri () #6 0x080ea0c6 in nautilus_file_is_mime_type () #7 0x080b009d in fm_directory_view_pop_up_location_context_menu () #8 0x080b00d0 in fm_directory_view_pop_up_location_context_menu () #9 0x0809c0e1 in fm_directory_view_update_menus () #10 0xb768bc7c in g_list_sort_real (list=, compare_func=0x809c07b , user_data=0x82f7138) at glist.c:580 #11 0xb768bc43 in g_list_sort_real (list=0x86d4330, compare_func=0x809c07b , user_data=0x82f7138) at glist.c:626 #12 0xb768bc34 in g_list_sort_real (list=0x86d4300, compare_func=0x809c07b , user_data=0x82f7138) at glist.c:626 #13 0xb768bc34 in g_list_sort_real (list=0x86d42a0, compare_func=0x809c07b , user_data=0x82f7138) at glist.c:626 #14 0xb768bc34 in g_list_sort_real (list=0x86d4380, compare_func=0x809c07b , user_data=0x82f7138) at glist.c:626 ---Type to continue, or q to quit--- #15 0x0809c11a in fm_directory_view_update_menus () #16 0x080a49d5 in fm_directory_view_pop_up_location_context_menu () #17 0x080a4abd in fm_directory_view_pop_up_location_context_menu () #18 0xb7758273 in IA__g_cclosure_marshal_VOID__VOID (closure=0x84a9478, return_value=0x0, n_param_values=1, param_values=0xbfc8969c, invocation_hint=0xbfc8959c, marshal_data=0xb777a728) at gmarshal.c:77 #19 0xb774b678 in IA__g_closure_invoke (closure=0x84a9478, return_value=0xb76fb19c, n_param_values=3077550492, param_values=0xb76fb19c, invocation_hint=0xb76fb19c) at gclosure.c:490 #20 0xb775b325 in signal_emit_unlocked_R (node=0x82cbbd0, detail=0, instance=0x8767360, emission_return=0x0, instance_and_params=0xbfc8969c) at gsignal.c:2449 #21 0xb775ce48 in IA__g_signal_emit_valist (instance=0x8767360, signal_id=155, detail=0, var_args=) at gsignal.c:2208 #22 0xb775d199 in IA__g_signal_emit (instance=0xb76fb19c, signal_id=3077550492, detail=3077550492) at gsignal.c:2252 #23 0x080d8491 in nautilus_directory_unref () #24 0x080d2faa in nautilus_directory_async_state_changed () #25 0x080d30a9 in nautilus_directory_async_state_changed () #26 0xb79974ad in gnome_vfs_job_get_count () from /usr/lib/libgnomevfs-2.so.0 #27 0xb768f734 in g_idle_dispatch (source=0x8766a50, callback=0xb76fb19d <__JCR_LIST__+393>, user_data=0xb76fb19c) at gmain.c:3761 ---Type to continue, or q to quit--- #28 0xb768d4e7 in IA__g_main_context_dispatch (context=0x818be58) at gmain.c:1913 #29 0xb76904d6 in g_main_context_iterate (context=0x818be58, block=1, dispatch=1, self=0x815b240) at gmain.c:2544 #30 0xb76907f8 in IA__g_main_loop_run (loop=0x8262d88) at gmain.c:2748 #31 0xb7bcada5 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #32 0x08078d6e in POA_Nautilus_MetafileFactory__fini () #33 0xb745131f in __libc_start_main ( main=0x8078657 , argc=-1217416804, ubp_av=0xbfc89db4, init=0x8124eb4 , fini=0xb7f8dca0 <_rtld_local_ro>, rtld_fini=0, stack_end=0xbfc89dac) at ../sysdeps/generic/libc-start.c:237 #34 0x080667d1 in ?? () (gdb)