Indirect Branch Tracking (IBT) Incompatibility - UG1586

Onload User Guide (UG1586)

Document ID
UG1586
Release Date
2025-11-03
Revision
1.31 English

Onload is not compatible with IBT. To use Onload with kernels which include IBT support (for example RHEL10), ibt=off should be appended to the kernel command line. Attempting to load the Onload drivers when IBT is still enabled results in failure to insert the sfc_resource kernel module. Onload also outputs a message to the kernel log suggesting ibt=off is appended to the kernel command line.