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On Mon, 2003-07-14 at 10:55, wmglo@dent.med.uni-muenchen.de wrote: Hi Sorry, home mail been down for last week due to server move/upgrade. > Unlikely. I think you're either seeing stack corruption (really > bad to track down :-( ) or you're seeing a wrong stack dump from > gdb which doesn't understand gcc's optimizations. > I tried with and without any optimizations. In most cases I just used '-ggdb' to debug it, but same issues with '-march=pentium3 -O2 -pipe' or whatever. > > I am not the greatest of debuggers, so a hand would be appreciated. > > You should compile a glibc or at least a malloc module without > optimization and see wether the problem can be reproduced. > valgrind of course would be much better still. > Like I said - did play with optimizations. Also, valgrind do not build currently on glibc from CVS and nptl. Anyhow, with the latest glibc/gcc, I get a new one that do not die when calling unlink(): ---------------------------------------------------- Program received signal SIGSEGV, Segmentation fault. 0x4065b25b in __libc_free (mem=0x81fda68) at malloc.c:3353 3353 (void)mutex_lock(&ar_ptr->mutex); (gdb) bt #0 0x4065b25b in __libc_free (mem=0x81fda68) at malloc.c:3353 #1 0x405a353d in g_free (mem=0x81fda68) at gmem.c:186 #2 0x405c17f0 in g_utf8_collate_key (str=0x81fda48 "ld", len=-1) at gunicollate.c:211 #3 0x402abfaa in open_new_dir (dir_name=0x81edbc0 "/space/var/tmp/portage/binutils-2.14.90.0.4.1-r1/work/binutils-2.14.90.0.4.1", sbuf=0xbfffc6b0, stat_subdirs=1) at gtkfilesel.c:3143 #4 0x402ac3b7 in open_dir (dir_name=0x81edbc0 "/space/var/tmp/portage/binutils-2.14.90.0.4.1-r1/work/binutils-2.14.90.0.4.1", cmpl_state=0x81edb70) at gtkfilesel.c:3276 #5 0x402ab1db in cmpl_init_state () at gtkfilesel.c:2652 #6 0x402a716d in gtk_file_selection_init (filesel=0x81eb808) at gtkfilesel.c:665 #7 0x4055b5fe in g_type_create_instance (type=134918960) at gtype.c:1419 #8 0x405440be in g_object_constructor (type=134918960, n_construct_properties=1, construct_params=0x81e9588) at gobject.c:827 #9 0x40543b01 in g_object_newv (object_type=134918960, n_parameters=0, parameters=0x0) at gobject.c:725 #10 0x40543c9c in g_object_new_valist (object_type=134918960, first_property_name=0x0, var_args=0xbfffcab8 "") at gobject.c:764 #11 0x405436e3 in g_object_new (object_type=134918960, first_property_name=0x0) at gobject.c:618 #12 0x402a839d in gtk_file_selection_new (title=0x807f53f "Open Archive") at gtkfilesel.c:1090 #13 0x0806c849 in open_archive_cb (widget=0x80ce738, data=0x80b14a0) at menu-callbacks.c:336 #14 0x4055638e in g_cclosure_marshal_VOID__VOID (closure=0x80eb170, return_value=0x0, n_param_values=1, param_values=0xbfffcdc0, invocation_hint=0xbfffcc68, marshal_data=0x0) at gmarshal.c:77 #15 0x40540572 in g_closure_invoke (closure=0x80eb170, return_value=0x0, n_param_values=1, param_values=0xbfffcdc0, invocation_hint=0xbfffcc68) at gclosure.c:437 #16 0x40555b2b in signal_emit_unlocked_R (node=0x80c9b18, detail=0, instance=0x80ce738, emission_return=0x0, instance_and_params=0xbfffcdc0) at gsignal.c:2822 #17 0x40554e36 in g_signal_emit_valist (instance=0x80ce738, signal_id=125, detail=0, var_args=0xbfffcf4c "D\001W@|?%@8?A@h???V?%@8?\f\bD\001W@????\216cU@8?\f\b?\210\n\b????\037\025V@`???????\f") at gsignal.c:2554 #18 0x405551b2 in g_signal_emit (instance=0x80ce738, signal_id=125, detail=0) at gsignal.c:2612 #19 0x4025ebab in gtk_button_clicked (button=0x80ce738) at gtkbutton.c:555 #20 0x4025fa56 in gtk_real_button_released (button=0x80ce738) at gtkbutton.c:1044 #21 0x4055638e in g_cclosure_marshal_VOID__VOID (closure=0x80c9a40, return_value=0x0, n_param_values=1, param_values=0xbfffd260, invocation_hint=0xbfffd108, marshal_data=0x4025fa00) at gmarshal.c:77 #22 0x4054089c in g_type_class_meta_marshal (closure=0x80c9a40, return_value=0x0, n_param_values=1, param_values=0xbfffd260, invocation_hint=0xbfffd108, marshal_data=0x1a4) at gclosure.c:514 #23 0x40540572 in g_closure_invoke (closure=0x80c9a40, return_value=0x0, n_param_values=1, param_values=0xbfffd260, invocation_hint=0xbfffd108) at gclosure.c:437 #24 0x40555762 in signal_emit_unlocked_R (node=0x80c9a88, detail=0, instance=0x80ce738, emission_return=0x0, instance_and_params=0xbfffd260) at gsignal.c:2752 #25 0x40554e36 in g_signal_emit_valist (instance=0x80ce738, signal_id=124, detail=0, var_args=0xbfffd3ec "D\001W@G?%@8?A@\030?????%@8?\f\bD\001W@\030???8?\f\b8?\f\b8?A@H???r?-@8?\f\b\030c\035\bP\200\n\b?\216\b\bP\200\n\b8?\f\b0B\v\b\200?%@") at gsignal.c:2554 #26 0x405551b2 in g_signal_emit (instance=0x80ce738, signal_id=124, detail=0) at gsignal.c:2612 #27 0x4025eb76 in gtk_button_released (button=0x80ce738) at gtkbutton.c:547 #28 0x4025f8ac in gtk_button_button_release (widget=0x80ce738, event=0x81d6318) at gtkbutton.c:960 #29 0x402dc372 in _gtk_marshal_BOOLEAN__BOXED (closure=0x80b4230, return_value=0xbfffd570, n_param_values=2, param_values=0xbfffd700, invocation_hint=0xbfffd5a8, marshal_data=0x4025f880) at gtkmarshalers.c:82 #30 0x4054089c in g_type_class_meta_marshal (closure=0x80b4230, return_value=0xbfffd570, n_param_values=2, param_values=0xbfffd700, invocation_hint=0xbfffd5a8, marshal_data=0xb4) at gclosure.c:514 #31 0x40540572 in g_closure_invoke (closure=0x80b4230, return_value=0xbfffd570, n_param_values=2, param_values=0xbfffd700, invocation_hint=0xbfffd5a8) at gclosure.c:437 #32 0x40555d1b in signal_emit_unlocked_R (node=0x80b43c8, detail=0, instance=0x80ce738, emission_return=0xbfffd680, instance_and_params=0xbfffd700) at gsignal.c:2860 #33 0x40554ebf in g_signal_emit_valist (instance=0x80ce738, signal_id=44, detail=0, var_args=0xbfffd890 "?????\210\n\b????\b") at gsignal.c:2564 #34 0x405551b2 in g_signal_emit (instance=0x80ce738, signal_id=44, detail=0) at gsignal.c:2612 #35 0x403a3f31 in gtk_widget_event_internal (widget=0x80ce738, event=0x81d6318) at gtkwidget.c:3198 #36 0x403a3bb5 in gtk_widget_event (widget=0x80ce738, event=0x81d6318) at gtkwidget.c:3004 #37 0x402dc242 in gtk_propagate_event (widget=0x80ce738, event=0x81d6318) at gtkmain.c:2254 #38 0x402db01b in gtk_main_do_event (event=0x81d6318) at gtkmain.c:1503 #39 0x4045d35b in gdk_event_dispatch (source=0x809c1a8, callback=0, user_data=0x0) at gdkevents-x11.c:2008 #40 0x4059cede in g_main_dispatch (context=0x809c680) at gmain.c:1720 ---Type <return> to continue, or q <return> to quit--- #41 0x4059dfa5 in g_main_context_dispatch (context=0x809c680) at gmain.c:2268 #42 0x4059e3e5 in g_main_context_iterate (context=0x809c680, block=1, dispatch=1, self=0x808d1f8) at gmain.c:2349 #43 0x4059ec9e in g_main_loop_run (loop=0x808f910) at gmain.c:2569 #44 0x402da689 in gtk_main () at gtkmain.c:1093 #45 0x0806b366 in main (argc=1, argv=0xbfffdbf4) at main.c:126 #46 0x406016c5 in __libc_start_main (main=0x806b1c8 <main>, argc=1, ubp_av=0xbfffdbf4, init=0x807bcc8 <__libc_csu_init>, fini=0x807bd10 <__libc_csu_fini>, rtld_fini=0x40015000 <_rtld_local>, stack_end=0x4) at ../sysdeps/generic/libc-start.c:205 (gdb) Regards, -- Martin Schlemmer
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