title: Which line the program running on with a backtrace info?
body: <p>there is my backtrace info:</p>
  
  <pre><code>======= Backtrace: =========
  /lib64/libc.so.6(+0x7bc07)[0x7f959bba4c07]
  /lib64/libc.so.6(+0x7d23a)[0x7f959bba623a]
  /lib64/libspice-server.so.1(+0x2108e)[0x7f959c8d508e]
  /lib64/libspice-server.so.1(+0x227a3)[0x7f959c8d67a3]
  /usr/libexec/qemu-kvm(qemu_iohandler_poll+0xc6)[0x7f95a10571e6]
  /usr/libexec/qemu-kvm(main_loop_wait+0x188)[0x7f95a105b748]
  /usr/libexec/qemu-kvm(main+0x1240)[0x7f95a0f7ce30]
  /lib64/libc.so.6(__libc_start_main+0xf5)[0x7f959bb4aaf5]
  /usr/libexec/qemu-kvm(+0xb2ced)[0x7f95a0f80ced]
  </code></pre>
  
  <p>I create a kvm instance with spice, but it is crashed and I got this message from log.</p>
  
  <p>Now, I want to know which line did I make it crash. But no link symbol table with <code>/lib64/libspice-server.so.1</code>.</p>
  
  <p>I can get the address offset with <code>+0x2108e</code>. Any way to find out with line did it crash?</p>
  
  <p>Btw, any tutorial with debug the library?</p>
  
  <p>Thanks.</p>