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Cisco Bug: CSCuo39105 - ISR 2900 Crashes due to Chunk Corruption w/ Unsupported USB Device

Last Modified

Dec 16, 2019

Products (1)

  • Cisco 2900 Series Integrated Services Routers

Known Affected Releases

15.2(4)M4.4

Description (partial)

Symptom:
An ISR 2900 series router may crash due to memory chunk corruption when an unsupported USB device has been inserted:

USB_HOST_STACK-5-USB_ENUM_UNSUPPORTED_DEVICE Unsupported device inserted. Host id X, Device Addr X.

SYS-2-CHUNKBADMAGIC Bad magic number in chunk header, chunk XXXXXXXX  data XXXXXXXX chunkmagic XXXXXXXX  chunk_freemagic XXXXXXXX -Process= "Check heaps", ipl= X, pid= X

Corrupted magic value in in-use chunk 
%Software-forced reload

Conditions:
An unsupported USB device is inserted into the router.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
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