This document contains the NI Linux Device Drivers known issues that were discovered before and since the release of NI Linux Device Drivers 2021 Q3. Known issues are performance issues or technical bugs that NI has acknowledged exist within this version of the product.
Not every issue known to NI appears on this list; it is intended to show the most severe and common issues that you may encounter and provide workarounds when possible. Other technical issues that you may encounter could occur through normal product use or system compatibility issues. You may find more information on these issues in NI’s Product Documentation, Knowledgebase, or Community.
System Crashes When NI Drivers Exceed the Default Max for iNotify Instances
When running code that initializes NI drivers, the system crashes. This may be because the NI drivers have requested more than the 128 iNotify instances that the default Linux kernel allows. The likelihood of encountering this issue increases as the number of installed drivers increases.
Increase the iNotify limit from the default 128 to a larger number, such as 12288.
You can increase the iNotify limit permanently with the following command:
Linux Desktop Readmes and Packages Are in an Unexpected Folder
The NI Linux Device Drivers 2021 Q3 feeds point to packages that are stored in a folder name indicating 2021 Q2. This is because of an inconsistency between internal and external naming schemes, the public Q3 feeds are intentionally pointing to packages stored in the Q2 folder.
There is no known workaround for this issue.
NI Linux Device Drivers 2021 Q3
Aug 10, 2021
Final Time Issue Listed
Issues found in this section will not be listed in future known issues documents for this product.