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Cisco Bug: CSCvu60268 - Axel 9130I coredump and capwapd: writing to fd 27 failed!: Invalid argument, capwap bouncing

Last Modified

Jul 07, 2020

Products (1)

  • Cisco Aironet 1850 Series Access Points

Known Affected Releases

8.10(128.130) 8.10(128.134)

Description (partial)

Symptom:
Axel 9130I AP mode chanegd from Flexconnect to Sniffer. It hit coredump:
VW_AP9130I.1D10#show flash cores
Directory of /storage/cores/
total 3324K
-rw-rw-rw-    1 root     root       1039672 Jun 10 09:54 VW_AP9130I.1D10_VW_AP9130I.1D10_5584-core-capwapd.8.10.128.130.2020-06-10-09-54-00.uploaded.tgz


Also, the AP showed below capwap errors. Looks like they are related. The AP has been flapping on capwap:
[*06/10/2020 14:15:36.5327] nssmgrctl | source_mac_store: tunnel 0 Src MAC addr set failed (suspend) - status 7
[*06/10/2020 14:15:36.5327] capwapd: writing to fd 27 failed!: Invalid argument
[*06/10/2020 14:15:36.5334] nssmgrctl | path_mtu_store: tunnel 0 PathMTU set failed (suspend) - status 7
[*06/10/2020 14:15:36.5334] capwapd: writing to fd 27 failed!: Invalid argument
 
VW_AP9130I.1D10#[*06/10/2020 14:16:36.5315] nssmgrctl | setup_tunnel: tunnel 0 create failed - status 104
[*06/10/2020 14:16:36.5316] capwapd: writing to fd 27 failed!: Input/output error
[*06/10/2020 14:16:36.5391]
[*06/10/2020 14:16:36.5391] CAPWAP State: Image Data

Conditions:
na
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