Created by: yongjianluo2014

我安装的paddle的docker镜像，版本是cpu-demo-v0.9.0。 运行的是paddle的demo程序，运行paddle/demo/quick_start/train.sh的时候报错，在运行train.sh之前执行过paddle/demo/quick_start/data/get_data.sh和paddle/demo/quick_start/preprocess.sh ,下载了测试数据并进行预处理。报错信息如下：请大神帮忙看看是什么问题，谢谢。

F0220 02:14:32.576246  2320 PyDataProvider2.cpp:582] Check failed: pool[i] != nullptr 
*** Check failure stack trace: ***
    @     0x7fa32f228daa  (unknown)
    @     0x7fa32f228ce4  (unknown)
    @     0x7fa32f2286e6  (unknown)
    @     0x7fa32f22b687  (unknown)
    @           0x53004c  paddle::PyDataProvider2::getNextBatchInternal()
    @           0x53b326  paddle::DoubleBuffer::asyncLoadBatch()
    @     0x7fa32eda5a60  (unknown)
    @     0x7fa33003b184  start_thread
    @     0x7fa32e50d37d  (unknown)
    @              (nil)  (unknown)

/usr/local/bin/paddle: line 109:  2304 Aborted                 (core dumped) ${DEBUGGER} $MYDIR/../opt/paddle/bin/paddle_trainer ${@:2}