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Cisco Bug: CSCvv68091 - C9800 Wireless Controllers with EXT2-fs (sdb1) Errors

Last Modified

Oct 22, 2020

Products (1)

  • Cisco Wireless LAN Controller Software

Known Affected Releases

16.12.1 16.12.3

Description (partial)

Symptom:
C9800 admin unable to save configuration and displaying the following logs:

%SELINUX-3-MISMATCH: Chassis 1 R0/0: audispd: type=AVC msg=audit(1583520468.602:121): avc: denied { write } for pid=12515 comm="linux_iosd-imag" name="token" dev="tmpfs" ino=22922344 scontext=system_u:system_r:polaris_iosd_t:s0 tcontext=system_u:object_r:var_run_t:s0 tclass=file permissive=1
%IOSXE-3-PLATFORM: Chassis 1 R0/0: kernel: EXT2-fs (sdb1): previous I/O error to superblock detected
%IOSXE-3-PLATFORM: Chassis 1 R0/0: kernel: sd 6:0:0:0: rejecting I/O to offline device
%IOSXE-2-PLATFORM: Chassis 1 R0/0: kernel: EXT2-fs (sdb1): error: ext2_readdir: bad page in #2

Conditions:
Confirmed on C9800-40-K9 units running 16.12 images.
Unit is working fine, but without any specific trigger or change, its disk simply starts failing.
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