[Qemu-devel] [Bug 1065232] Re: qemu-system-arm Crashes on startup on OS X 10.8.2

[Peter Maydell]

Thanks for this bug report; it would be helpful if you could let us know
the following info:

(1) Are you running qemu built directly from the upstream sources, or have you 
built this from the versions shipped by fink or similar package management 
system?
(2) can you give the full configure line you used to build this?
(3) which compiler (including which version) did you use?

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1065232

Title:
  qemu-system-arm Crashes on startup on OS X 10.8.2

Status in QEMU:
  New

Bug description:
  On startup qemu-system-arm crashes on this line 9373 of target-arm

          if (unlikely(!QTAILQ_EMPTY(&env->breakpoints))) {
              QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
                  if (bp->pc == dc->pc) {  // <-- CRASH !!!!
                      gen_exception_insn(dc, 0, EXCP_DEBUG);
                      /* Advance PC so that clearing the breakpoint will
                         invalidate this TB.  */
                      dc->pc += 2;
                      goto done_generating;
                      break;
                  }
              }

  What appears to be happening is env is 
  (gdb) print env->breakpoints
  $4 = {
    tqh_first = 0x1f001f001f001f, 
    tqh_last = 0x1f001f001f001f
  }

  which leads to bp being set to
  (gdb) print bp
  $1 = (CPUBreakpoint *) 0x1f001f001f001f

  This looks like a bad address and causes the following statement

  Program received signal EXC_BAD_ACCESS, Could not access memory.
  Reason: 13 at address: 0x0000000000000000

  I am wondering if the env structure is not getting setup correctly?

  I am running the 1.2.0 version of qemu on
  Darwin localhost 12.2.0 Darwin Kernel Version 12.2.0: Sat Aug 25 00:48:52 PDT 
2012; root:xnu-2050.18.24~1/RELEASE_X86_64 x86_64

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1065232/+subscriptions