Compiling this with gfortran, produces four 'ok':
TYPE TypeThree
INTEGER i
REAL*8 a
REAL*8, ALLOCATABLE :: aa(:)
END TYPE TypeThree
TYPE TypeTwo
TYPE(TypeThree), ALLOCATABLE :: b
END TYPE TypeTwo
TYPE TypeOne
TYPE (TypeTwo), ALLOCATABLE :: c(:)
END TYPE TypeOne
TYPE(TypeOne), ALLOCATABLE :: d(:)
allocate(d(2))
print *, 'ok'
deallocate(d)
print *, 'ok'
allocate(d(2))
print *, 'ok'
allocate(d(1)%c(2))
print *, 'ok'
deallocate(d(1)%c)
print *, 'ok'
end
and it produces a segmentation fault when trying to deallocate d(1)%c. Using ifort, resolves the issue. Removing INTEGER i under typeThree resolves this issue. Letting the compiler do deallocation (commenting out deallocate(d(1)%c)) resolve the issue. Any idea would be appreciated. Using
ulimit -s unlimited
doesn't help.
Also:
$ gfortran -v
Using built-in specs.
COLLECT_GCC=gfortran
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/4.6/lto-wrapper
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro 4.6.3-1ubuntu5' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.6 --enable-shared --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --enable-plugin --enable-objc-gc --disable-werror --with-arch-32=i686 --with-tune=generic --enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu --target=x86_64-linux-gnu
Thread model: posix
gcc version 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5)
It is a bug with gfortran (until gfortran 4.6 included), upgrade your compiler to 4.7 or higher version and the problem should disapear.