运行 TensorFlow 上的 C++ inception-v3 时出现非法指令错误

Illegal instruction error while running C++ inception-v3 on TensorFlow

我正在尝试 运行 Image Recognition with the C++ API tutorial 并且在使用 Bazel 进行 TensorFlow 编译后尝试执行 label_image 时出现 Illegal instruction 错误。

我做了以下步骤:

# After installing the bazel dependencies, I get the bazel installer
$ mkdir ~/bazel-download && cd ~/bazel-download
$ wget https://github.com/bazelbuild/bazel/releases/download/0.3.0/bazel-0.3.0-installer-linux-x86_64.sh -O bazel-0.3.0-installer-linux-x86_64.sh

$ chmod +x bazel-0.3.0-installer-linux-x86_64.sh
# Install bazel in ~/bin
$ ./bazel-0.3.0-installer-linux-x86_64.sh --user

# Add bazel to the path, if not done already
$ printf '\nexport PATH=$PATH:"~/bin/"\n' >> ~/.bashrc

# Before this, I create a new terminal to refresh the bash PATH
$ mkdir ~/inceptionV3 && cd ~/inceptionV3
# Get a stable version of TensorFlow
$ git clone https://github.com/tensorflow/tensorflow -b r0.9
$ cd tensorflow

# Add the InceptionV3 data/models for the C++ api
$ wget https://storage.googleapis.com/download.tensorflow.org/models/inception_dec_2015.zip -O tensorflow/examples/label_image/data/inception_dec_2015.zip
$ unzip tensorflow/examples/label_image/data/inception_dec_2015.zip -d tensorflow/examples/label_image/data/

# Configure tensorflow: set python path, no Google Cloud Platform support, no GPU support
$ ./configure
# Run bazel build with the allocated resources
$ bazel build -c opt --copt=-mavx --verbose_failures --local_resources 2048,2.0,1.0 -j 1 tensorflow/examples/label_image/...

# -- Here's the last log output from bazel --
INFO: From Compiling tensorflow/core/common_runtime/function.cc:
tensorflow/core/common_runtime/function.cc: In lambda function:
tensorflow/core/common_runtime/function.cc:392:60: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
                } else if (rets->size() != ctx->num_outputs()) {
                                                            ^
INFO: Elapsed time: 6929.927s, Critical Path: 69.23s

# Look like there's no error during the compilation, but now, if I run the generated executable:
$ ./bazel-bin/tensorflow/examples/label_image/label_image
Illegal instruction

另外,我运行正在 Docker 上使用 Ubuntu 14.04.4 LTS x86_64 容器(gcc/g++ 版本是 4.8 .4).

我尝试 运行 将其与其他设置结合使用,例如使用 apt-get install for bazel,但在使用 运行 结合可执行文件后我仍然收到 Illegal instruction 错误新合集

也就是说,教程的 Python 部分工作正常(使用 python 2.7.6)。知道如何解决 C++ API 的问题吗?

edit1:(添加更多关于 cpu 的信息) 这是我从 /proc/cpuinfo.

得到的输出

edit2:(尝试调试 tensorflow) 使用此命令编译:

$ bazel build -c dbg --strip=always --copt=-mavx --verbose_failures --local_resources 2048,2.0,1.0 -j 1 tensorflow/examples/label_image/...

并且我尝试使用 gdb 进行调试:

$ -q bazel-bin/tensorflow/examples/label_image/label_image
Reading symbols from bazel-bin/tensorflow/examples/label_image/label_image...(no debugging symbols found)...done.

(gdb) set disable-randomization off

(gdb) run
Starting program: /root/.cache/bazel/_bazel_root/b54d699ba1afcab684f4628c78701dbe/execroot/tensorflow/bazel-out/local-dbg/bin/tensorflow/examples/label_image/label_image
During startup program terminated with signal SIGILL, Illegal instruction.

(gdb) backtrace
No stack.

(gdb) handle SIGILL nostop
Signal        Stop      Print   Pass to program Description
SIGILL        No        Yes     Yes             Illegal instruction

(gdb) run
Starting program: /root/.cache/bazel/_bazel_root/b54d699ba1afcab684f4628c78701dbe/execroot/tensorflow/bazel-out/local-dbg/bin/tensorflow/examples/label_image/label_image
During startup program terminated with signal SIGILL, Illegal instruction.

(gdb) backtrace
No stack.

(gdb) info files
Symbols from "/root/.cache/bazel/_bazel_root/b54d699ba1afcab684f4628c78701dbe/execroot/tensorflow/bazel-out/local-dbg/bin/tensorflow/examples/label_image/label_image".
Local exec file:
        `/root/.cache/bazel/_bazel_root/b54d699ba1afcab684f4628c78701dbe/execroot/tensorflow/bazel-out/local-dbg/bin/tensorflow/examples/label_image/label_image', file type elf64-x86-64.
        Entry point: 0x434b10
        0x0000000000400270 - 0x000000000040028c is .interp
        0x000000000040028c - 0x00000000004002ac is .note.ABI-tag
        0x00000000004002ac - 0x00000000004002cc is .note.gnu.build-id
        0x00000000004002d0 - 0x0000000000400380 is .gnu.hash
        0x0000000000400380 - 0x00000000004027e0 is .dynsym
        0x00000000004027e0 - 0x0000000000404667 is .dynstr
        0x0000000000404668 - 0x0000000000404970 is .gnu.version
        0x0000000000404970 - 0x0000000000404b70 is .gnu.version_r
        0x0000000000404b70 - 0x0000000000431360 is .rela.dyn
        0x0000000000431360 - 0x00000000004334a8 is .rela.plt
        0x00000000004334a8 - 0x00000000004334c2 is .init
        0x00000000004334d0 - 0x0000000000434b10 is .plt
        0x0000000000434b10 - 0x00000000027cfe2f is .text
        0x00000000027cfe30 - 0x00000000027cfe39 is .fini
        0x00000000027cfe40 - 0x0000000003890ed0 is .rodata
        0x0000000003890ed0 - 0x0000000003acc1ec is .eh_frame_hdr
        0x0000000003acc1f0 - 0x000000000441fc2c is .eh_frame
        0x000000000441fc2c - 0x000000000444474f is .gcc_except_table
        0x0000000004644dd0 - 0x0000000004644de0 is .tdata
        0x0000000004644de0 - 0x0000000004644df8 is .tbss
        0x0000000004644de0 - 0x0000000004645a70 is .init_array
        0x0000000004645a70 - 0x0000000004645a78 is .fini_array
        0x0000000004645a78 - 0x0000000004645a80 is .jcr
        0x0000000004645a80 - 0x00000000046a5d50 is .data.rel.ro
        0x00000000046a5d50 - 0x00000000046a5f90 is .dynamic
        0x00000000046a5f90 - 0x00000000046a6000 is .got
        0x00000000046a6000 - 0x00000000046a6b30 is .got.plt
        0x00000000046a6b40 - 0x00000000046a70d0 is .data
        0x00000000046a70e0 - 0x00000000046aae18 is .bss

(gdb) break main
Breakpoint 1 at 0x436cc0

(gdb) run
Starting program: /root/.cache/bazel/_bazel_root/b54d699ba1afcab684f4628c78701dbe/execroot/tensorflow/bazel-out/local-dbg/bin/tensorflow/examples/label_image/label_image
During startup program terminated with signal SIGILL, Illegal instruction.

(gdb) backtrace
No stack.

到目前为止,由于 Illegal instruction 错误是由 SIGILL 信号引起的,所以我猜我当前的架构与生成的机器代码不匹配。然而,我不确定如何处理这个特定问题。

经过几次搜索,似乎 --copt=-mavx 实际上是传递给 gcc 的参数,目的是在 OSX 机器 as pointed over here 上优化架构。所以它无法在我的 linux "PC" 机器上运行。