The following program

      CHARACTER(LEN=80) DATA
      DATA=""
     
OPEN(121245,FILE="/proc/self/statm",ACTION="READ",STATUS="OLD",ACCESS="STREAM")
      DO I=1,80
         READ(121245,END=999) DATA(I:I)
      ENDDO
999   CLOSE(121245)
      DATA(I:80)=""
      END

under valgrind leads to :

==29139== Conditional jump or move depends on uninitialised value(s)
==29139==    at 0x4BE48A5: finalize_transfer (transfer.c:2953)
==29139==    by 0x4BE49E8: _gfortran_st_read_done (transfer.c:3092)
==29139==    by 0x400A2B: MAIN__ (test.f90:5)
==29139==    by 0x400B19: main (fmain.c:21)

which I'm guessing would be a wrong code issue in the io lib.

gcc version 4.4.0 20090414 (prerelease) [gcc-4_4-branch revision 146034] (GCC)


-- 
           Summary: IO depends on uninitialised value
           Product: gcc
           Version: 4.4.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: jv244 at cam dot ac dot uk


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39782

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