[Bug general/5612] New: Load/Start/ then: break main causes a ptrace exception in fhpd

[Bug general/5612] New: Load/Start/ then: break main causes a ptrace exception in fhpd

[pmuldoon at redhat dot com]

[pmuldoon@localhost frysk_bin]$ ./frysk-core/frysk/bindir/fhpd 
(fhpd) load /bin/bas
 
basename    bash
(fhpd) load /bin/bash 
Loaded executable file: /bin/bash
(fhpd) start
Attached to process 15732
(fhpd) break main
breakpoint 0
(fhpd) Exception in thread "Thread-1" frysk.sys.Errno$Eio: ptrace: Input/output
error (op 0x2 (PTRACE_PEEKDATA), pid 15732, addr 0x81a100, data 0x0)
   at frysk.sys.Ptrace$AddressSpace.peek(fhpd)
   at frysk.proc.live.AddressSpaceByteBuffer$PeekRequest.request(fhpd)
   at frysk.proc.live.AddressSpaceByteBuffer.peek(fhpd)
   at inua.eio.ByteBuffer.getByte(fhpd)
   at frysk.proc.live.IA32InstructionParser.parse(fhpd)
   at frysk.proc.live.X8664InstructionParser.parse(fhpd)
   at frysk.proc.live.LinuxX8664.getInstruction(fhpd)
   at frysk.proc.live.Breakpoint.set(fhpd)
   at frysk.proc.live.Breakpoint.install(fhpd)
   at frysk.proc.live.LinuxPtraceProc$BreakpointAction.run(fhpd)
   at frysk.proc.live.TaskObservation.add(fhpd)
   at frysk.proc.live.LinuxPtraceTaskState$BlockedSignal.handleAddObservation(fhpd)
   at frysk.proc.live.LinuxPtraceTask.handleAddObservation(fhpd)
   at frysk.proc.live.TaskObservation.handleAdd(fhpd)
   at frysk.proc.live.LinuxPtraceProcState$3.handleAddObservation(fhpd)
   at frysk.proc.live.LinuxPtraceProc.handleAddObservation(fhpd)
   at frysk.proc.live.LinuxPtraceProc$11.execute(fhpd)
   at frysk.event.EventLoop.runEventLoop(fhpd)
   at frysk.event.EventLoop.run(fhpd)

-- 
           Summary: Load/Start/ then: break main causes a ptrace exception
                    in fhpd
           Product: frysk
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: general
        AssignedTo: frysk-bugzilla at sourceware dot org
        ReportedBy: pmuldoon at redhat dot com


http://sourceware.org/bugzilla/show_bug.cgi?id=5612

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[Bug general/5612] Load/Start/ then: break main causes a ptrace exception in fhpd

[mark at klomp dot org]

------- Additional Comments From mark at klomp dot org  2008-01-14 19:13 -------
Is this related to bug #5580?
It looks like the bash process actually died:

  546 ?        S      0:00 sshd: mark@pts/5 
  547 pts/5    Ss     0:00  \_ -bash
  580 pts/5    Sl+    0:00      \_ frysk-core/frysk/bindir/fhpd
  583 pts/5    Z+     0:00          \_ [bash] <defunct>


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[Bug general/5612] Load/Start/ then: break main causes a ptrace exception in fhpd

[pmuldoon at redhat dot com]

------- Additional Comments From pmuldoon at redhat dot com  2008-01-14 21:10 -------
Not sure but:

load /bin/bash

reports no errors.

start

reports no errors.

break main: spams a ptrace error.

Not quite sure. They could be the same bug I guess, but I'm not confident to
diagnose.





-- 


http://sourceware.org/bugzilla/show_bug.cgi?id=5612

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