当我加载xlsx后跟时caret，R死于segmentation fault.
> library("xlsx")
Loading required package: rJava
Loading required package: xlsxjars
> library(caret)
Loading required package: lattice
Loading required package: ggplot2
Segmentation fault (core dumped)
但是，如果我caret先加载，然后加载xlsx，R 工作正常。
> library(caret)
Loading required package: lattice
Loading required package: ggplot2
> library("xlsx")
Loading required package: rJava
Loading required package: xlsxjars
>
知道有什么问题吗？
更新：
OS: CentOS 6.9
R: 3.2.5
R configured with:
./configure --enable-R-shlib CFLAGS=-fPIC --with-cairo --with-libpng --with-jpeglib --with-libtiff --with-system-zlib --with-system-pcre --with-system-xz --with-tcltk
devtools.SessionInfo输出
> sessionInfo()
R version 3.2.5 (2016-04-14)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: CentOS release 6.9 (Final)
locale:
[1] LC_CTYPE=en_US.utf8 LC_NUMERIC=C
[3] LC_TIME=en_US.utf8 LC_COLLATE=en_US.utf8
[5] LC_MONETARY=en_US.utf8 LC_MESSAGES=en_US.utf8
[7] LC_PAPER=en_US.utf8 LC_NAME=en_US.utf8
[9] LC_ADDRESS=en_US.utf8 LC_TELEPHONE=en_US.utf8
[11] LC_MEASUREMENT=en_US.utf8 LC_IDENTIFICATION=en_US.utf8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] randomForest_4.6-12 class_7.3-14 xlsx_0.5.7
[4] xlsxjars_0.6.1 rJava_0.9-8 MASS_7.3-47
[7] TTR_0.23-1 caret_6.0-76 ggplot2_2.2.0
[10] lattice_0.20-34 devtools_1.13.2
loaded via a namespace (and not attached):
[1] Rcpp_0.12.8 nloptr_1.0.4 plyr_1.8.4 iterators_1.0.8
[5] tools_3.2.5 xts_0.10-0 digest_0.6.10 lme4_1.1-12
[9] memoise_1.0.0 tibble_1.2 nlme_3.1-128 gtable_0.2.0
[13] mgcv_1.8-16 Matrix_1.2-7.1 foreach_1.4.3 parallel_3.2.5
[17] SparseM_1.74 withr_1.0.2 stringr_1.1.0 MatrixModels_0.4-1
[21] stats4_3.2.5 grid_3.2.5 nnet_7.3-12 minqa_1.2.4
[25] reshape2_1.4.2 car_2.1-3 magrittr_1.5 scales_0.4.1
[29] codetools_0.2-15 ModelMetrics_1.1.0 splines_3.2.5 assertthat_0.1
[33] pbkrtest_0.4-6 colorspace_1.3-1 quantreg_5.29 stringi_1.1.2
[37] lazyeval_0.2.0 munsell_0.4.3 zoo_1.7-13