#0  0x000000005805e839 in do_syscall_WRK ()
#1  0x000000005805e91d in vgPlain_do_syscall (sysno=sysno@entry=62, a1=<optimized out>, a2=a2@entry=5, a3=a3@entry=0, a4=a4@entry=0, a5=a5@entry=0, a6=0, a7=0, a8=0) at m_syscall.c:931
  926: #  if defined(VGP_x86_linux)
  927:    UWord val = do_syscall_WRK(sysno,a1,a2,a3,a4,a5,a6);
  928:    return VG_(mk_SysRes_x86_linux)( val );
  929: 
  930: #  elif defined(VGP_amd64_linux)
  931:    UWord val = do_syscall_WRK(sysno,a1,a2,a3,a4,a5,a6);
  932:    return VG_(mk_SysRes_amd64_linux)( val );
  933: 
  934: #  elif defined(VGP_ppc32_linux)
  935:    ULong ret     = do_syscall_WRK(sysno,a1,a2,a3,a4,a5,a6);
  936:    UInt  val     = (UInt)(ret>>32);
#2  0x0000000058049532 in vgPlain_kill (pid=<optimized out>, signo=signo@entry=5) at m_libcsignal.c:350
  345: 
  346: 
  347: Int VG_(kill)( Int pid, Int signo )
  348: {
  349: #  if defined(VGO_linux) || defined(VGO_solaris)
  350:    SysRes res = VG_(do_syscall2)(__NR_kill, pid, signo);
  351: #  elif defined(VGO_darwin)
  352:    SysRes res = VG_(do_syscall3)(__NR_kill,
  353:                                  pid, signo, 1/*posix-compliant*/);
  354: #  else
  355: #    error "Unsupported OS"
#3  0x000000005805ba10 in vgPlain_kill_self (sigNo=5) at m_signals.c:1572
  1567: 
  1568:    VG_(sigemptyset)(&mask);
  1569:    VG_(sigaddset)(&mask, sigNo);
  1570:    VG_(sigprocmask)(VKI_SIG_UNBLOCK, &mask, &origmask);
  1571: 
  1572:    r = VG_(kill)(VG_(getpid)(), sigNo);
  1573: #  if !defined(VGO_darwin)
  1574:    /* This sometimes fails with EPERM on Darwin.  I don't know why. */
  1575:    vg_assert(r == 0);
  1576: #  endif
  1577: 
#4  0x000000005804a7ce in shutdown_actions_NORETURN (tid=1, tids_schedretcode=VgSrc_FatalSig) at m_main.c:2207
  2202:       break; /* what the hell :) */
  2203: 
  2204:    case VgSrc_FatalSig:
  2205:       /* We were killed by a fatal signal, so replicate the effect */
  2206:       vg_assert(VG_(threads)[tid].os_state.fatalsig != 0);
  2207:       VG_(kill_self)(VG_(threads)[tid].os_state.fatalsig);
  2208:       /* we shouldn't be alive at this point.  But VG_(kill_self)
  2209:          sometimes fails with EPERM on Darwin, for unclear reasons. */
  2210: #     if defined(VGO_darwin)
  2211:       VG_(debugLog)(0, "main", "VG_(kill_self) failed.  Exiting normally.\n");
  2212:       VG_(exit)(0); /* bogus, but we really need to exit now */
#5  0x00000000580aee94 in run_a_thread_NORETURN (tidW=1) at m_syswrap/syswrap-linux.c:203
  198:                           tid);
  199: 
  200:       /* We are the last one standing.  Keep hold of the lock and
  201:          carry on to show final tool results, then exit the entire system. 
  202:          Use the continuation pointer set at startup in m_main. */
  203:       ( * VG_(address_of_m_main_shutdown_actions_NORETURN) ) (tid, src);
  204:    } else {
  205: 
  206:       VG_(debugLog)(1, "syswrap-linux", 
  207:                        "run_a_thread_NORETURN(tid=%u): "
  208:                           "not last one standing\n",
#6  0x0000000000000000 in ?? ()