Cisco Bug: CSCur11470 - 4500X running 3.6.0E(Amur) displays PCI warning during boot up process
Nov 27, 2020
- Cisco Catalyst 4000 Series Switches
Known Affected Releases
Symptom: The following PCI warnings are seen during bootup. [ 0.091108] pci 0000:00:00.0: ignoring class b20 (doesn't match header type 01) [ 0.181235] pci 0001:04:00.0: ignoring class b20 (doesn't match header type 01) [ 0.273666] pci 0002:0c:00.0: ignoring class b20 (doesn't match header type 01) Conditions: 4500X running IOS XE 3.6.0E or lower and upgrading to any release can see this issue. Its been seen in 3.6.X and 3.7.X train.' This is a common warning message seen at bootup on linux kernels. There is no operational impact.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases