For instance: (fhpd) go Running process 8818 (fhpd) Task 8818 is terminating from signal SIGSEGV(11) Exception in thread "main" lib.dwfl.ElfFileException: open: Permission denied (file /proc/8818/exe) (errno 13) at lib.dwfl.Elf.getDescriptor(fhpd) at lib.dwfl.Elf.<init>(fhpd) at frysk.proc.live.IsaFactory.getIsa(fhpd) at frysk.proc.live.LinuxPtraceTask.getIsaFIXME(fhpd) at frysk.proc.live.LinuxPtraceTask.sendStepInstruction(fhpd) at frysk.proc.live.LinuxPtraceTaskState$Running.sendContinue(fhpd) at frysk.proc.live.LinuxPtraceTaskState$Running.handleTerminatingEvent(fhpd) at frysk.proc.live.LinuxPtraceTask.processTerminatingEvent(fhpd) at frysk.proc.live.LinuxWaitBuilder.exitEvent(fhpd) at frysk.sys.Wait.wait(fhpd) at frysk.sys.Wait.wait(fhpd) at frysk.event.WaitEventLoop.block(fhpd) at frysk.event.EventLoop.runEventLoop(fhpd) at frysk.event.EventLoop.run(fhpd) at frysk.bindir.fhpd.main(fhpd) Caused by: frysk.sys.Errno: open: Permission denied (file /proc/8818/exe) (errno 13) at frysk.sys.FileDescriptor.open(fhpd) at frysk.sys.FileDescriptor.<init>(fhpd) at lib.dwfl.Elf.getDescriptor(fhpd) ...14 more $