Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
13.0.0, 13.0.0 hf1, 13.0.0 hf2, 13.0.0 hf3, 13.0.1
Opened: Jan 16, 2017 Severity: 4-Minor
Broadwell-EP CPUs have UNCORE devices known as the "Broadwell Home Agent" devices. For both single-socket and dual-socket platforms, this is pci 0000:ff:12.*. These devices have non-compliant BAR's and when the systems with the Broadwell-EP CPUs boot, dmesg output includes as part of early kernel booting messages similar to the following: [ 2.345303] pci 0000:ff:12.0: BAR 2: failed to assign [mem size 0x00000040] [ 2.345306] pci 0000:ff:12.0: BAR 4: failed to assign [mem size 0x00000040] [ 2.345309] pci 0000:ff:12.0: BAR 1: failed to assign [mem size 0x00000010] [ 2.345312] pci 0000:ff:12.0: BAR 3: failed to assign [mem size 0x00000010] [ 2.345315] pci 0000:ff:12.0: BAR 5: failed to assign [mem size 0x00000010] Not related, but also seen is the following: [ 20.123776] mei_me 0000:00:16.0: initialization failed. This is due to the bios configuration not permitting access to the ME (Management Engine). The kernel module for the ME should not be loaded as a result.
None. This is cosmetic and should not be cause for alarm. The Broadwell-EP Home Agent devices are not used by BIG-IP software, and appear only as part of the UNCORE devices associated with each physical socket.
Affects the following platforms: - BIG-IP i10600/i10800 - BIG-IP i7600/i7800 - BIG-IP i5600/i5800 - BIG-IP i4600/i4800 - BIG-IP i2600/i2800 - HRC-i2800 - HRC-i5800 - HRC-i10800
None needed: this is cosmetic.
None