Bug ID 1783685: ATSE Datapath lockup on HBM calibration issue

Last Modified: Mar 05, 2026

Affected Product(s):
F5OS F5OS-A(all modules)

Known Affected Versions:
F5OS-A 1.8.3

Opened: Jan 04, 2025

Severity: 2-Critical

Symptoms

Datapath lockup in the ATSE FPGA. Can be seen at startup with no traffic received at the host, or some time after startup with packet framing errors. This can also show up as a transmit packet path lockup because health check loopback packets can back up into the transmit datapath and block it.

Impact

The impact is no packets can get from the network to host for processing.

Conditions

No known conditions.

Workaround

The datapath lockup requires a reload of the ATSE FPGA. Reload typically done by rebooting the system. This issue has been fixed in ATSE bitfiles v72.5.8.00 and v72.41.8.0 and all newer bitfiles.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips