[Bug fortran/57957] New: Double free or corruption (fasttop)

[songtao.thu at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57957

            Bug ID: 57957
           Summary: Double free or corruption (fasttop)
           Product: gcc
           Version: 4.8.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: songtao.thu at gmail dot com

A simple test:

! Test
program main

  implicit none

  type :: type1
    real, allocatable :: anum(:)
  end type type1

  type :: type2
    type(type1) :: temp
  end type type2


  type(type1) :: uKnot
  type(type2) :: a

  uKnot = type1([real  :: 0,0,0,1,2,3,4,4,5,5,5])
  a = type2(uKnot)
end

which leads to:

*** Error in `./a.out': double free or corruption (fasttop): 0x000000000184bf90
***
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(+0x80a46)[0x7fce37214a46]
./a.out[0x400a5a]
./a.out[0x400aa0]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf5)[0x7fce371b5ea5]
./a.out[0x400699]
======= Memory map: ========
00400000-00401000 r-xp 00000000 08:06 792386                            
/home/taosong/Dropbox/[Tao]Codes/MyFortran/Try/a.out
00600000-00601000 r--p 00000000 08:06 792386                            
/home/taosong/Dropbox/[Tao]Codes/MyFortran/Try/a.out
00601000-00602000 rw-p 00001000 08:06 792386                            
/home/taosong/Dropbox/[Tao]Codes/MyFortran/Try/a.out
01849000-0186a000 rw-p 00000000 00:00 0                                  [heap]
7fce36a3d000-7fce36a52000 r-xp 00000000 08:06 1310725                   
/lib/x86_64-linux-gnu/libgcc_s.so.1
7fce36a52000-7fce36c51000 ---p 00015000 08:06 1310725                   
/lib/x86_64-linux-gnu/libgcc_s.so.1
7fce36c51000-7fce36c52000 r--p 00014000 08:06 1310725                   
/lib/x86_64-linux-gnu/libgcc_s.so.1
7fce36c52000-7fce36c53000 rw-p 00015000 08:06 1310725                   
/lib/x86_64-linux-gnu/libgcc_s.so.1
7fce36c53000-7fce36d56000 r-xp 00000000 08:06 1314626                   
/lib/x86_64-linux-gnu/libm-2.17.so
7fce36d56000-7fce36f56000 ---p 00103000 08:06 1314626                   
/lib/x86_64-linux-gnu/libm-2.17.so
7fce36f56000-7fce36f57000 r--p 00103000 08:06 1314626                   
/lib/x86_64-linux-gnu/libm-2.17.so
7fce36f57000-7fce36f58000 rw-p 00104000 08:06 1314626                   
/lib/x86_64-linux-gnu/libm-2.17.so
7fce36f58000-7fce36f93000 r-xp 00000000 08:06 1057181                   
/usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7fce36f93000-7fce37192000 ---p 0003b000 08:06 1057181                   
/usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7fce37192000-7fce37193000 r--p 0003a000 08:06 1057181                   
/usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7fce37193000-7fce37194000 rw-p 0003b000 08:06 1057181                   
/usr/lib/x86_64-linux-gnu/libquadmath.so.0.0.0
7fce37194000-7fce37352000 r-xp 00000000 08:06 1314578                   
/lib/x86_64-linux-gnu/libc-2.17.so
7fce37352000-7fce37551000 ---p 001be000 08:06 1314578                   
/lib/x86_64-linux-gnu/libc-2.17.so
7fce37551000-7fce37555000 r--p 001bd000 08:06 1314578                   
/lib/x86_64-linux-gnu/libc-2.17.so
7fce37555000-7fce37557000 rw-p 001c1000 08:06 1314578                   
/lib/x86_64-linux-gnu/libc-2.17.so
7fce37557000-7fce3755c000 rw-p 00000000 00:00 0 
7fce3755c000-7fce37671000 r-xp 00000000 08:06 1048919                   
/usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7fce37671000-7fce37871000 ---p 00115000 08:06 1048919                   
/usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7fce37871000-7fce37872000 r--p 00115000 08:06 1048919                   
/usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7fce37872000-7fce37874000 rw-p 00116000 08:06 1048919                   
/usr/lib/x86_64-linux-gnu/libgfortran.so.3.0.0
7fce37874000-7fce37897000 r-xp 00000000 08:06 1314554                   
/lib/x86_64-linux-gnu/ld-2.17.so
7fce37a77000-7fce37a7b000 rw-p 00000000 00:00 0 
7fce37a93000-7fce37a96000 rw-p 00000000 00:00 0 
7fce37a96000-7fce37a97000 r--p 00022000 08:06 1314554                   
/lib/x86_64-linux-gnu/ld-2.17.so
7fce37a97000-7fce37a99000 rw-p 00023000 08:06 1314554                   
/lib/x86_64-linux-gnu/ld-2.17.so
7fff3b3ac000-7fff3b3cd000 rw-p 00000000 00:00 0                         
[stack]
7fff3b3fe000-7fff3b400000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                 
[vsyscall]

Program received signal SIGABRT: Process abort signal.

Backtrace for this error:
#0  0x7FCE37575577
#1  0x7FCE37575B7E
#2  0x7FCE371CB0AF
#3  0x7FCE371CB037
#4  0x7FCE371CE697
#5  0x7FCE372085AA
#6  0x7FCE37214A45
#7  0x400A59 in MAIN__ at main.f95:?
Aborted (core dumped)


Anyway, ifort 12.0 works well with it.
Hopefully some experts can figure it out.