Debug backtrace for the crash:

#0  0xb7622ffa in IA__g_type_check_instance (type_instance=0x8742350) at gtype.c:3205
No locals.
#1  0xb761ad85 in IA__g_signal_emit_valist (instance=0x8742350, signal_id=135, detail=0, var_args=0xbf06b2ec "P#t\bP#t\b")
    at gsignal.c:2126
        instance_and_params = <value optimized out>
        stack_values = {{g_type = 0, data = {{v_int = -1221347135, v_uint = 3073620161, v_long = -1221347135, 
        v_ulong = 3073620161, v_int64 = -5241890947562489663, v_uint64 = 13204853126147061953, v_float = -1.07122478e-05, 
        v_double = -1.5302024808882047e-42, v_pointer = 0xb733b8c1}, {v_int = 141860336, v_uint = 141860336, 
        v_long = 141860336, v_ulong = 141860336, v_int64 = 68861337072, v_uint64 = 68861337072, v_float = 7.36117338e-34, 
        v_double = 3.4022020973969453e-313, v_pointer = 0x8749df0}}}, {g_type = 3204886800, data = {{v_int = -1220565348, 
        v_uint = 3074401948, v_long = -1220565348, v_ulong = 3074401948, v_int64 = -5245645998813895012, 
        v_uint64 = 13201098074895656604, v_float = -1.14232789e-05, v_double = -8.843518767282433e-43, 
        v_pointer = 0xb73fa69c}, {v_int = 141860336, v_uint = 141860336, v_long = 141860336, v_ulong = 141860336, 
        v_int64 = -5241871983918670352, v_uint64 = 13204872089790881264, v_float = 7.36117338e-34, 
        v_double = -1.536244646403033e-42, v_pointer = 0x8749df0}}}, {g_type = 0, data = {{v_int = 1, v_uint = 1, 
        v_long = 1, v_ulong = 1, v_int64 = -5245646001888296959, v_uint64 = 13201098071821254657, 
        v_float = 1.40129846e-45, v_double = -8.8435138694775597e-43, v_pointer = 0x1}, {v_int = -1221347135, 
        v_uint = 3073620161, v_long = -1221347135, v_ulong = 3073620161, v_int64 = 585293544599828673, 
        v_uint64 = 585293544599828673, v_float = -1.07122478e-05, v_double = 1.4849851817500622e-269, 
        v_pointer = 0xb733b8c1}}}, {g_type = 40, data = {{v_int = -1090080409, v_uint = 3204886887, v_long = -1090080409, 
        v_ulong = 3204886887, v_int64 = 71924363623, v_uint64 = 71924363623, v_float = -0.526144445, 
        v_double = 3.5535357165118154e-313, v_pointer = 0xbf06b167}, {v_int = -1220468440, v_uint = 3074498856, 
        v_long = -1220468440, v_ulong = 3074498856, v_int64 = -5241871860726947544, v_uint64 = 13204872212982604072, 
        v_float = -1.15114162e-05, v_double = -1.5362838975504577e-42, v_pointer = 0xb7412128}}}, {g_type = 3076515824, 
    data = {{v_int = -1090080504, v_uint = 3204886792, v_long = -1090080504, v_ulong = 3204886792, 
        v_int64 = -5241890947431223032, v_uint64 = 13204853126278328584, v_float = -0.526138783, 
        v_double = -1.5302025227121663e-42, v_pointer = 0xbf06b108}, {v_int = 141860336, v_uint = 141860336, 
        v_long = 141860336, v_ulong = 141860336, v_int64 = 609574194383199728, v_uint64 = 609574194383199728, 
        v_float = 7.36117338e-34, v_double = 6.5547007900958564e-268, v_pointer = 0x8749df0}}}, {g_type = 3204886880, 
    data = {{v_int = -1221341356, v_uint = 3073625940, v_long = -1221341356, v_ulong = 3073625940, 
        v_int64 = -5241872066886250668, v_uint64 = 13204872006823300948, v_float = -1.07175038e-05, 
        v_double = -1.5362182114068154e-42, v_pointer = 0xb733cf54}, {v_int = 141860336, v_uint = 141860336, 
        v_long = 141860336, v_ulong = 141860336, v_int64 = -5241871829299847696, v_uint64 = 13204872244409703920, 
        v_float = 7.36117338e-34, v_double = -1.5362939108021694e-42, v_pointer = 0x8749df0}}}, {g_type = 3074498904, 
    data = {{v_int = -1220468400, v_uint = 3074498896, v_long = -1220468400, v_ulong = 3074498896, v_int64 = 37434237264, 
        v_uint64 = 37434237264, v_float = -1.15114526e-05, v_double = 1.8494970610412618e-313, v_pointer = 0xb7412150}, {
        v_int = 40, v_uint = 40, v_long = 40, v_ulong = 40, v_int64 = 609285469359833128, v_uint64 = 609285469359833128, 
        v_float = 5.60519386e-44, v_double = 6.2440385274458268e-268, v_pointer = 0x28}}}, {g_type = 40, data = {{
        v_int = 141860328, v_uint = 141860328, v_long = 141860328, v_ulong = 141860328, v_int64 = 68861337064, 
        v_uint64 = 68861337064, v_float = 7.3611697e-34, v_double = 3.4022020970016928e-313, v_pointer = 0x8749de8}, {
        v_int = -1220565348, v_uint = 3074401948, v_long = -1220565348, v_ulong = 3074401948, 
        v_int64 = -5245655963138021732, v_uint64 = 13201088110571529884, v_float = -1.14232789e-05, 
        v_double = -8.8276446831162534e-43, v_pointer = 0xb73fa69c}}}, {g_type = 0, data = {{v_int = 141920856, 
        v_uint = 141920856, v_long = 141920856, v_ulong = 141920856, v_int64 = -5241890950494188968, 
---Type <return> to continue, or q <return> to quit---
        v_uint64 = 13204853123215362648, v_float = 7.3889628e-34, v_double = -1.530201546794915e-42, 
        v_pointer = 0x8758a58}, {v_int = 141860336, v_uint = 141860336, v_long = 141860336, v_ulong = 141860336, 
        v_int64 = -5241872069818016272, v_uint64 = 13204872003891535344, v_float = 7.36117338e-34, 
        v_double = -1.5362172772924016e-42, v_pointer = 0x8749df0}}}, {g_type = 3204886968, data = {{v_int = -1221332882, 
        v_uint = 3073634414, v_long = -1221332882, v_ulong = 3073634414, v_int64 = -5241872066886242194, 
        v_uint64 = 13204872006823309422, v_float = -1.07252108e-05, v_double = -1.5362182114095154e-42, 
        v_pointer = 0xb733f06e}, {v_int = 141927552, v_uint = 141927552, v_long = 141927552, v_ulong = 141927552, 
        v_int64 = 137580881024, v_uint64 = 137580881024, v_float = 7.39203745e-34, v_double = 6.7973986838530261e-313, 
        v_pointer = 0x875a480}}}, {g_type = 3074494452, data = {{v_int = 0, v_uint = 0, v_long = 0, v_ulong = 0, 
        v_int64 = 34359738368, v_uint64 = 34359738368, v_float = 0, v_double = 1.6975966327722179e-313, v_pointer = 0x0}, 
      {v_int = 40, v_uint = 40, v_long = 40, v_ulong = 40, v_int64 = 609285469359833128, v_uint64 = 609285469359833128, 
        v_float = 5.60519386e-44, v_double = 6.2440385274458268e-268, v_pointer = 0x28}}}, {g_type = 16, data = {{
        v_int = 141927552, v_uint = 141927552, v_long = 141927552, v_ulong = 141927552, v_int64 = 141927552, 
        v_uint64 = 141927552, v_float = 7.39203745e-34, v_double = 7.0121527641547103e-316, v_pointer = 0x875a480}, {
        v_int = 23, v_uint = 23, v_long = 23, v_ulong = 23, v_int64 = 64424509463, v_uint64 = 64424509463, 
        v_float = 3.22298647e-44, v_double = 3.1829936875842595e-313, v_pointer = 0x17}}}, {g_type = 3077610797, data = {{
        v_int = 141920879, v_uint = 141920879, v_long = 141920879, v_ulong = 141920879, v_int64 = 202005383791, 
        v_uint64 = 202005383791, v_float = 7.38897336e-34, v_double = 9.9803920406109291e-313, v_pointer = 0x8758a6f}, {
        v_int = 23, v_uint = 23, v_long = 23, v_ulong = 23, v_int64 = -5233215855432564713, 
        v_uint64 = 13213528218276986903, v_float = 3.22298647e-44, v_double = -5.7186333470440779e-42, 
        v_pointer = 0x17}}}, {g_type = 141860336, data = {{v_int = 32, v_uint = 32, v_long = 32, v_ulong = 32, 
        v_int64 = -4681859152614522848, v_uint64 = 13764884921095028768, v_float = 4.48415509e-44, 
        v_double = -4.3287174776196697e-05, v_pointer = 0x20}, {v_int = -1218842229, v_uint = 3076125067, 
        v_long = -1218842229, v_ulong = 3076125067, v_int64 = 609285506795696523, v_uint64 = 609285506795696523, 
        v_float = -1.29904465e-05, v_double = 6.2440788076747136e-268, v_pointer = 0xb759f18b}}}, {g_type = 32, data = {{
        v_int = -1090080232, v_uint = 3204887064, v_long = -1090080232, v_ulong = 3204887064, 
        v_int64 = -5232002210433945064, v_uint64 = 13214741863275606552, v_float = -0.526154995, 
        v_double = -7.2443066084435603e-42, v_pointer = 0xbf06b218}, {v_int = -1222225548, v_uint = 3072741748, 
        v_long = -1222225548, v_ulong = 3072741748, v_int64 = 7367709044, v_uint64 = 7367709044, 
        v_float = -9.91333582e-06, v_double = 3.6401319271942532e-314, v_pointer = 0xb7265174}}}, {g_type = 3204887016, 
    data = {{v_int = -1222234219, v_uint = 3072733077, v_long = -1222234219, v_ulong = 3072733077, v_int64 = 7367700373, 
        v_uint64 = 7367700373, v_float = -9.90544959e-06, v_double = 3.6401276431510381e-314, v_pointer = 0xb7262f95}, {
        v_int = -1218453016, v_uint = 3076514280, v_long = -1218453016, v_ulong = 3076514280, 
        v_int64 = -4681858805940624920, v_uint64 = 13764885267768926696, v_float = -1.33444337e-05, 
        v_double = -4.3289523929904681e-05, v_pointer = 0xb75fe1e8}}}}
        free_me = <value optimized out>
        signal_return_type = <value optimized out>
        param_values = <value optimized out>
        node = <value optimized out>
        i = <value optimized out>
        n_params = <value optimized out>
        __PRETTY_FUNCTION__ = "IA__g_signal_emit_valist"
#2  0xb761b7e9 in IA__g_signal_emit (instance=0x8742350, signal_id=135, detail=0) at gsignal.c:2243
        var_args = 0xbf06b2ec "P#t\bP#t\b"
#3  0x08112770 in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5485
        link_files = <value optimized out>
---Type <return> to continue, or q <return> to quit---
        p = <value optimized out>
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#4  0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b344)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b344
#5  0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#6  0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e310
        p = (GList *) 0x887e310
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#7  0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b3c4)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b3c4
#8  0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#9  0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e2c0
        p = (GList *) 0x887e2c0
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#10 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b444)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b444
#11 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#12 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e290
        p = (GList *) 0x887e290
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#13 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b4c4)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b4c4
#14 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#15 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e260
        p = (GList *) 0x887e260
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#16 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b544)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b544
#17 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
---Type <return> to continue, or q <return> to quit---
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#18 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e230
        p = (GList *) 0x887e230
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#19 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b5c4)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b5c4
#20 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#21 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e200
        p = (GList *) 0x887e200
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#22 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b644)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b644
#23 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#24 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e1b0
        p = (GList *) 0x887e1b0
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#25 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b6c4)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b6c4
#26 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#27 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e180
        p = (GList *) 0x887e180
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#28 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b744)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b744
#29 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#30 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e150
        p = (GList *) 0x887e150
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
---Type <return> to continue, or q <return> to quit---
#31 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b7c4)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b7c4
#32 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#33 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e120
        p = (GList *) 0x887e120
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#34 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b844)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b844
#35 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#36 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e0d0
        p = (GList *) 0x887e0d0
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#37 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b8c4)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b8c4
#38 0x08112881 in nautilus_file_changed (file=0x8742350) at nautilus-file.c:5431
        fake_list = {data = 0x8742350, next = 0x0, prev = 0x0}
        __PRETTY_FUNCTION__ = "nautilus_file_changed"
#39 0x0811279b in nautilus_file_emit_changed (file=0x8742350) at nautilus-file.c:5490
        link_files = (GList *) 0x887e0a0
        p = (GList *) 0x887e0a0
        __PRETTY_FUNCTION__ = "nautilus_file_emit_changed"
#40 0x080ff19a in nautilus_directory_emit_change_signals (directory=0x838faf8, changed_files=0xbf06b944)
    at nautilus-directory.c:794
        p = (GList *) 0xbf06b944
...