pdflatex 在大量数字后挂起

Question

我有一个脚本可以生成一些数字并将它们放在报告的附录中，例如

Appendix
********

.. figure:: images/generated/image_1.png
.. figure:: images/generated/image_2.png
.. figure:: images/generated/image_3.png
... etc

看起来在大量（约 50 个）图像之后，我的pdflatex命令将挂起，并指向.tex此处文件中的一个图形

...
\begin(figure)[htbp]
\centering
\noindent\sphinxincludegraphics{{image_49}.png}
\end{figure}

\begin(figure)[htbp]
\centering
\noindent\sphinxincludegraphics{{image_50}.png} <--- here
\end{figure}

\begin(figure)[htbp]
\centering
\noindent\sphinxincludegraphics{{image_51}.png}
\end{figure}
...

当pdflatex失败时，我真的无法从控制台输出中弄清楚要做什么，我得到了一些似乎是好消息的行

<image_48.png, id=451, 411.939pt x 327.3831pt>
File: image_48.png Graphic file (type png)
<use image_48.png>
Package pdftex.def Info: image_48.png  used on input line 1251.
(pdftex.def)             Requested size: 411.93797pt x 327.3823pt.

<image_49.png, id=452, 411.939pt x 327.3831pt>
File: image_49.png Graphic file (type png)     
<use image_49.png>
Package pdftex.def Info: image_49.png  used on input line 1257.
(pdftex.def)             Requested size: 411.93797pt x 327.3823pt.

然后在最后一个成功的图像（~50）之后它开始输出

! Output loop---100 consecutive dead cycles.
\end@float ...loatpenalty <-\@Mii \penalty -\@Miv
                                                  \@tempdima \prevdepth \vbo...
l.1258 \end{figure}

I've concluded that your \output is awry; it never does a
\shipout, so I'm shipping \box255 out myself. Next time
increase \maxdeadcycles if you want me to be more patient!

[9
! Undefined control sequence.
\reserved@a ->\@nil

l.1258 \end{figure}

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., `\hobx'), type `I' and the correct
spelling (e.g., `I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.

如果我所做的只是减少数字的数量，它就会运行并毫无问题地生成 pdf。一个部分可以拥有的图像数量是否有硬性限制？是否还有其他地方可以查看构建日志以缩小发生这种情况的原因？

Answer 1

这似乎是几件事的结合。

第一个症状本质上是由太多未处理的浮点数引起的错误。对此问题进行修复是下面添加到babel的元素latex_elements

\usepackage[maxfloats=256]{morefloats}

第二个症状是抱怨Output loop---100 consecutive dead cycles.所以解决方法只是增加周期数

\maxdeadcycles=1000

经过这两个调整后pdflatex，即使有大量数字，命令现在也可以成功完成。