Preview Tool

Cisco Bug: CSCun10948 - 3850: Segfault with Process = ACL Logging Process

Last Modified

Nov 27, 2020

Products (1)

  • Cisco Catalyst 3850 Series Switches

Known Affected Releases


Description (partial)

An IOS-XE based CAT 3K switch will crash in IOSD with a segmentation fault in the ACL Logging Process:

IOSD-EXT-SIGNAL: Segmentation fault(11), Process = ACL Logging Process

1) This has been seen when traffic matches an ACL containing an entry with the 'log' or 'log-input' statement. Eg:

ip access-list extended trafficIN
 allow   ip host X.X.X.X any
 deny   ip any any log-input      <===

2) The device must be using a lanbase license

F340.06.11-3850-2#show license right-to-use
 Slot#  License name   Type     Count   Period left
 1      lanbase      permanent     N/A   Lifetime

License Level on Reboot: lanbase
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.