root@KSourceServer:/usr/bin# gdb qq
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Reading symbols from qq...
(No debugging symbols found in qq)
(gdb) r
Starting program: /usr/bin/qq
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[1025/140416.968220:INFO:main.cpp(333)] ======================cmdline:/usr/bin/qq======================
[New Thread 0x7ffff5887700 (LWP 18031)]
[New Thread 0x7ffff5086700 (LWP 18032)]
[New Thread 0x7ffff4885700 (LWP 18033)]
[New Thread 0x7ffff4084700 (LWP 18034)]
[New Thread 0x7ffff3883700 (LWP 18035)]
[New Thread 0x7ffff3082700 (LWP 18036)]
[New Thread 0x7ffff2881700 (LWP 18037)]
[New Thread 0x7ffff2080700 (LWP 18038)]
[New Thread 0x7ffff107e700 (LWP 18040)]
[New Thread 0x7ffff187f700 (LWP 18039)]
[New Thread 0x7ffff087d700 (LWP 18041)]
[New Thread 0x7fffeeccd700 (LWP 18042)]
[New Thread 0x7fffee4cc700 (LWP 18043)]
[New Thread 0x7fffedccb700 (LWP 18044)]
[New Thread 0x7fffed4ca700 (LWP 18045)]
[New Thread 0x7fffeccc9700 (LWP 18046)]
[New Thread 0x7fffec4c8700 (LWP 18047)]
[New Thread 0x7fffebcc7700 (LWP 18048)]
[New Thread 0x7fffeb4c6700 (LWP 18049)]
[New Thread 0x7fffeacc5700 (LWP 18050)]
[New Thread 0x7fffea4c4700 (LWP 18051)]
[New Thread 0x7fffe9cc3700 (LWP 18052)]
[New Thread 0x7fffe94c2700 (LWP 18053)]
[New Thread 0x7fffe8cc1700 (LWP 18054)]
[New Thread 0x7fffe84c0700 (LWP 18055)]
[New Thread 0x7fffe7cbf700 (LWP 18056)]
[New Thread 0x7fffe74be700 (LWP 18057)]
[New Thread 0x7fffe6cbd700 (LWP 18058)]
Thread 1 "qq" received signal SIGSEGV, Segmentation fault.
0x00007ffff7d0ad83 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
(gdb) bt
#0 0x00007ffff7d0ad83 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1 0x00007ffff7d0b130 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2 0x00007ffff7d0b1bf in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3 0x0000555555fce812 in ?? ()
#4 0x0000555555ff9b79 in ?? ()
#5 0x0000555555fe2e77 in ?? ()
#6 0x0000555555e5e27c in ?? ()
#7 0x00007ffff6f83bbb in __libc_start_main (main=0x555555e5dc50, argc=1, argv=0x7fffffffe5c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffe5b8) at ../csu/libc-start.c:308
#8 0x0000555555b4752a in ?? ()
(gdb)
也没个调试信息，啥都看不见 23333