Fail to run SciMark2

[jserv]

SciMark2 was integrated and verified. See directory tests/scimark2 for its source files.
However, I fail to run SciMark2 recently.

$ build/rv32emu build/scimark2.elf
**                                                              **
** SciMark2 Numeric Benchmark, see http://math.nist.gov/scimark **
** for details. (Results can be submitted to pozo@nist.gov)     **
**                                                              **
Segmentation fault

The procedure to execute:

$ make clean
$ git reset --hard 6db46fc222bb11c227a8c140691ece711f1a200e
$ rm -r src/mini-gdbstub
$ make

Reference output:

$ build/rv32emu build/scimark2.elf
**                                                              **
** SciMark2 Numeric Benchmark, see http://math.nist.gov/scimark **
** for details. (Results can be submitted to pozo@nist.gov)     **
**                                                              **
Using       2.00 seconds min time per kenel.
Composite Score:            4.14
FFT             Mflops:     0.55    (N=1024)
SOR             Mflops:     1.48    (100 x 100)
MonteCarlo:     Mflops:    16.15
Sparse matmult  Mflops:     1.29    (N=1000, nz=5000)
LU              Mflops:     1.26    (M=100, N=100)