GNU gdb (GDB) 7.9 Copyright (C) 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-unknown-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: . Find the GDB manual and other documentation resources online at: . For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from xfce4-appearance-settings...(no debugging symbols found)...done. (gdb) handle SOGIG2233 pass nostop noprint Signal Stop Print Pass to program Description SIG33 No No Yes Real-time event 33 (gdb) set pagination 0 (gdb) run Starting program: /usr/bin/xfce4-appearance-settings [Thread debugging using libthread_db enabled] Using host libthread_db library "/usr/lib/libthread_db.so.1". [New Thread 0x7fffe97d6700 (LWP 7201)] Program received signal SIGINT, Interrupt. 0x00007ffff5eb1c6e in _int_malloc () from /usr/lib/libc.so.6 (gdb) backtrace full #0 0x00007ffff5eb1c6e in _int_malloc () from /usr/lib/libc.so.6 No symbol table info available. #1 0x00007ffff5eb42c5 in calloc () from /usr/lib/libc.so.6 No symbol table info available. #2 0x00007ffff64482e2 in g_malloc0 () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #3 0x00007ffff6430ce8 in ?? () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #4 0x00007ffff64312df in ?? () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #5 0x00007ffff6431416 in ?? () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #6 0x00007ffff7687b99 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #7 0x00007ffff7687a5c in ?? () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #8 0x00007ffff7687a5c in ?? () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #9 0x00007ffff7688829 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #10 0x00007ffff76898dd in gtk_icon_theme_has_icon () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #11 0x00000000004049b3 in ?? () No symbol table info available. #12 0x00007ffff644262d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #13 0x00007ffff6442a08 in ?? () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #14 0x00007ffff6442d32 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 No symbol table info available. #15 0x00007ffff76b5467 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 No symbol table info available. #16 0x000000000040450c in ?? () No symbol table info available. #17 0x00007ffff5e59800 in __libc_start_main () from /usr/lib/libc.so.6 No symbol table info available. #18 0x00000000004045e9 in ?? () No symbol table info available. (gdb) info registers rax 0x1de11 122385 rbx 0x7ffff61d6c00 140737322511360 rcx 0xdcd31f0 231551472 rdx 0x811 2065 rsi 0x0 0 rdi 0x4 4 rbp 0x800 0x800 rsp 0x7fffffffdc40 0x7fffffffdc40 r8 0x3 3 r9 0x0 0 r10 0xdcd29e0 231549408 r11 0xdcb5940 231430464 r12 0x7ffff61d6c58 140737322511448 r13 0x7ffff61d6c58 140737322511448 r14 0x2710 10000 r15 0x811 2065 rip 0x7ffff5eb1c6e 0x7ffff5eb1c6e <_int_malloc+2510> eflags 0x10206 [ PF IF RF ] cs 0x33 51 ss 0x2b 43 ds 0x0 0 es 0x0 0 fs 0x0 0 gs 0x0 0 (gdb) x/16i $pc => 0x7ffff5eb1c6e <_int_malloc+2510>: mov %rax,0x8(%rcx) 0x7ffff5eb1c72 <_int_malloc+2514>: lea 0x10(%r10),%rcx 0x7ffff5eb1c76 <_int_malloc+2518>: mov 0x326dc0(%rip),%eax # 0x7ffff61d8a3c 0x7ffff5eb1c7c <_int_malloc+2524>: test %eax,%eax 0x7ffff5eb1c7e <_int_malloc+2526>: je 0x7ffff5eb191d <_int_malloc+1661> 0x7ffff5eb1c84 <_int_malloc+2532>: jmpq 0x7ffff5eb171f <_int_malloc+1151> 0x7ffff5eb1c89 <_int_malloc+2537>: nopl 0x0(%rax) 0x7ffff5eb1c90 <_int_malloc+2544>: mov %ecx,%r11d 0x7ffff5eb1c93 <_int_malloc+2547>: mov 0x324196(%rip),%rcx # 0x7ffff61d5e30 0x7ffff5eb1c9a <_int_malloc+2554>: mov 0x18(%rcx),%rdi 0x7ffff5eb1c9e <_int_malloc+2558>: mov %rdi,0x28(%rsp) 0x7ffff5eb1ca3 <_int_malloc+2563>: sub $0x1,%rdi 0x7ffff5eb1ca7 <_int_malloc+2567>: cmp %r15,0x324522(%rip) # 0x7ffff61d61d0 0x7ffff5eb1cae <_int_malloc+2574>: mov %rdi,%rbp 0x7ffff5eb1cb1 <_int_malloc+2577>: ja 0x7ffff5eb1e30 <_int_malloc+2960> 0x7ffff5eb1cb7 <_int_malloc+2583>: mov 0x32452f(%rip),%edi # 0x7ffff61d61ec (gdb) thread apply all backtraces Thread 2 (Thread 0x7fffe97d6700 (LWP 7201)): #0 0x00007ffff5f184ed in poll () from /usr/lib/libc.so.6 #1 0x00007ffff64429a4 in ?? () from /usr/lib/libglib-2.0.so.0 #2 0x00007ffff6442d32 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #3 0x00007ffff5003d86 in ?? () from /usr/lib/libgio-2.0.so.0 #4 0x00007ffff6469215 in ?? () from /usr/lib/libglib-2.0.so.0 #5 0x00007ffff61e3374 in start_thread () from /usr/lib/libpthread.so.0 #6 0x00007ffff5f2127d in clone () from /usr/lib/libc.so.6 Thread 1 (Thread 0x7ffff7fa0900 (LWP 7197)): #0 0x00007ffff5eb1c6e in _int_malloc () from /usr/lib/libc.so.6 #1 0x00007ffff5eb42c5 in calloc () from /usr/lib/libc.so.6 #2 0x00007ffff64482e2 in g_malloc0 () from /usr/lib/libglib-2.0.so.0 #3 0x00007ffff6430ce8 in ?? () from /usr/lib/libglib-2.0.so.0 #4 0x00007ffff64312df in ?? () from /usr/lib/libglib-2.0.so.0 #5 0x00007ffff6431416 in ?? () from /usr/lib/libglib-2.0.so.0 #6 0x00007ffff7687b99 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #7 0x00007ffff7687a5c in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #8 0x00007ffff7687a5c in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #9 0x00007ffff7688829 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 #10 0x00007ffff76898dd in gtk_icon_theme_has_icon () from /usr/lib/libgtk-x11-2.0.so.0 #11 0x00000000004049b3 in ?? () #12 0x00007ffff644262d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #13 0x00007ffff6442a08 in ?? () from /usr/lib/libglib-2.0.so.0 #14 0x00007ffff6442d32 in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 #15 0x00007ffff76b5467 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 #16 0x000000000040450c in ?? () #17 0x00007ffff5e59800 in __libc_start_main () from /usr/lib/libc.so.6 #18 0x00000000004045e9 in ?? () (gdb) quit A debugging session is active. Inferior 1 [process 7197] will be killed. Quit anyway? (y or n) y