在部署的Docker项目上用到了selenium 去模拟滑块验证码的识别，最近出现下面的问题频率较高。

...
selenium.common.exceptions.WebDriverException: Message: unknown error: session deleted because of page crash
from tab crashed
(Session info: headless chrome=102.0.5005.182)

通过Google搜索问题，发现是/dev/shm 空间不够的原因。

Solution
There are diverse solution to this issue. However as per UnknownError: session deleted because of page crash from tab crashed this issue can be solved by either of the following solutions:

Add the following chrome_options:

chrome_options.add_argument('--no-sandbox')         
Chrome seem to crash in Docker containers on certain pages due to too small /dev/shm. So you may have to fix the small /dev/shm size.

An example:

sudo mount -t tmpfs -o rw,nosuid,nodev,noexec,relatime,size=512M tmpfs /dev/shm
It also works if you use -v /dev/shm:/dev/shm option to share host /dev/shm

Another way to make it work would be to add the chrome_options as --disable-dev-shm-usage. This will force Chrome to use the /tmp directory instead. This may slow down the execution though since disk will be used instead of memory.

chrome_options.add_argument('--disable-dev-shm-usage')  

可以通过添加了两个启动参数来解决这个问题。

chrome_options.add_argument('--no-sandbox') 
chrome_options.add_argument('--disable-dev-shm-usage') ## 这将强制 Chrome 改为使用该/tmp目录。这可能会减慢执行速度，因为将使用磁盘而不是内存。