The minimal example errors about libshadow-plugin-tor.so 、 max_map_count and core dump

[beastsam]

Hi , recently, I met a problem. I installed the shadow and shadow-plugin-tor successfully. But when i run the minimal example for test, the errors such as the picture.

As you can see, I checked the file and the max_map_count. The filepath is right and the Permission is ok, the max_map_count is also the guide number.

Later, I checked the shadow.log.
there is no errors in the shadow.log, but there some warnings, such as

shadow.log

The corefile picture is as follow.

My system is CentOS Linux release 7.5.1804
Is rhere someone met this problem?
If you know how to fix tihs, please tell me and thank you very much.

[Rob Jansen]

Shadow is getting an error when it is trying to open a file. You increased the max_map_count, but did you also increase the open file limits? Please post the output of

sysctl fs.nr_open
sysctl fs.file-max
ulimit -n

[beastsam]

Shadow is getting an error when it is trying to open a file. You increased the max_map_count, but did you also increase the open file limits? Please post the output of

sysctl fs.nr_open
sysctl fs.file-max
ulimit -n

Shadow is getting an error when it is trying to open a file. You increased the max_map_count, but did you also increase the open file limits? Please post the output of

sysctl fs.nr_open
sysctl fs.file-max
ulimit -n

Thank you very much. I found the problem. I didn't change my limits.conf file correctly.Now it's ok.
:)