This document contains the PXI Platform Services known issues that were discovered before and since the release of PXI Platform Services 2026 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; see Additional Resources.
|
Bug Number |
Legacy ID |
Description |
Details |
|---|---|---|---|
| 1448861, 1482726, 1482726 |
System Crashes When NI Drivers Exceed the Default Max for iNotify InstancesWhen 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.
Workaround: Increase the iNotify limit from the default 128 to a larger number, such as 12288. You can increase the iNotify limit permanently through the following:
sudo sysctl -w fs.inotify.max_user_instances=<Upper Limit>Note: <Upper Limit> can be any large number such as 12288. |
Reported Version: N/A Resolved Version: N/A Added: Jul 27, 2021 |
|
| 1210589 |
NI Drivers may fail under Linux kernel DMA remappingAttempts to use NI devices may fail on Linux kernels that have enabled DMA remapping. The Linux kernel logs will contain errors similar to the following: Linux distributions that enable DMA remapping by default include Ubuntu 22.04 with kernel 6.8 or higher and Ubuntu 24.04.
Workaround: Modify the Linux kernel DMA remapping configuration as outlined in https://www.ni.com/r/iommu-linux.
|
Reported Version: NI Linux Device Drivers: 2020 | PXI Platform Services: 20.0 Resolved Version: N/A Added: Nov 1, 2024 |
|
| 3824442 |
Unable to Boot Dell QXX1250 Series Tower With MXI KitA few customers have reported that their new Dell Qxx1250 Series Tower/Pro Max T2 FCT 2250 Tower, does not detect the chassis when operating in the default mode. Additionally, when the BIOS Compatibility Mode DIP is enabled on the PCIe controller, the PC fails to boot. How to resolve this issue? Workaround: This is a compatibility issue found between Gen 2 MXI and Dell Qxx1250 Series Tower/Pro Max Tower T2 FCT 2250 models. At the moment, the manufacturer is actively working on the root cause analysis. Currently, no estimated timeline for a BIOS fix, corrective update, or workaround is available. Involved Hardware:
Workaround: There is currently no known workaround for this issue. |
Reported Version: Unknown / Unspecified: Rev. A Resolved Version: N/A Added: May 5, 2026 |
Issues found in this section will not be listed in future known issues documents for this product.
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