Cisco Bug: CSCup49704 - 3850 FED Crash - Waiting for SPI channels FED_SPI_FLCD,FED_SPI_FAST ...
Jul 26, 2020
- Cisco Catalyst 3850 Series Switches
Known Affected Releases
Symptom: When abruptly reloading (eg: manual power cycle) or adding/removing a switch member from a 3850 stack, other switches in the stack may begin crashing on the FED (forwarding engine driver) due to a timeout on the SPI, which is the internal message-passing system that lets services communicate with one another. The following logs may be seen for the stack members that enter a crash loop: FED-3-INIT_FAILED MEMBER: X fed: Module SPI Channel failed initialization Waiting for SPI channels FED_SPI_FLCD,FED_SPI_FAST_CONV, IOSXE-3-PLATFORM MEMBER: X process sysmgr: Service [fed] pid:[XXXX] terminated abnormally . The bug is for 3850 and 3650 as its a timing issue and not related to any particular HW. Conditions: A stack member must be either be reloaded abruptly (eg: manual power cycle) or added/removed from the stack.
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