title: Quick way to find what thread asserted in gdb?
body: <p>When my Cocoa app hits an assertion in the code, gdb gives me a prompt as expected, but it's never (ok, rarely) in the right thread. </p>
  
  <p>I know I can use Xcode's GUI debugger and it makes it a little less painful, but I'm thinking there has to be a gdb command line trick I don't know.</p>
  
  <p>Is there an easier way of finding the thread that asserted other than changing to each thread and issuing <code>where</code>?</p>