Bug ID 1713073: F5OS rSeries spontaneous reboot after upgrade

Last Modified: Jul 09, 2025

Affected Product(s):
F5OS Install/Upgrade, Velos(all modules)

Known Affected Versions:
F5OS-A 1.8.0

Fixed In:
F5OS-A 1.5.3

Opened: Nov 07, 2024

Severity: 2-Critical

Related Article: K000148566

Symptoms

After upgrading, the device reboots unexpectedly. Pel logs have this signature: 11/05/2024 21:24:47 | 5753 | AOM | 255 | Network Access | 0 | CPU internal error event 11/05/2024 21:24:47 | 5754 | AOM | 255 | Network Access | 5 | ME PECI is not functional, resetting host 11/05/2024 21:24:47 | 5755 | AOM | 255 | Network Access | 5 | ... reason: 0xFF ME IPMI 'other error' 11/05/2024 21:24:47 | 5756 | AOM | 255 | Network Access | 6 | lop host reset event

Impact

Spontaneous system restart could occur.

Conditions

-- rSeries 5xxx, 10xxx, 12xxx system -- Upgrade to version 1.8.0 build 16036

Workaround

A BIOS change occurred in the F5OS 1.8.0 build 16036 upgrade that enables CMS ENABLE DRAM PM. Disabling it will mitigate this. For instructions on how to perform this procedure, see K000148566: F5 rSeries systems may silently reboot after upgrading to F5OS-A 1.8.0 at https://my.f5.com/manage/s/article/K000148566.

Fix Information

Fixes introduced in F5OS-A-1.8.0-17564.R5R10.EHF-1.iso

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips