Cisco Bug: CSCvt32044 - Kernel Panic on supervisor 4
May 11, 2020
- Cisco MDS 9000 Series Multilayer Switches
Known Affected Releases
Symptom: A Supervisor 4 randomly resets. The show system reset-reason for the affected supervisor shows the reset reason as: <pre> Reason: Kernel Panic </pre> The following syslog message about 'device sdb4' may be logged: <pre> %KERN-2-SYSTEM_MSG: [1294828.221287] EXT3-fs error (device sdb4): ext3_get_group_desc: Group descriptor not loaded - block_group = 0, group_desc = 0, desc = 0 - kernel </pre> Conditions: This issue only applies to MDS 9700 Supervisor 4 module (DS-X97-SF4-K9).
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Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
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