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Cisco Bug: CSCvs85377 - Memory corruption crash on stile functions

Last Modified

Jul 17, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

16.9.4

Description (partial)

Symptom:
An ISR4k experienced a memory corruption crash, which has errors similar as below. Contact Cisco TAC to confirm this bug - the blocks surrounding the corrupted one belonged to "stile functions" related to nbar-cp allocation

CMD: '  show domain IWAN master traffic summar ' 09:09:09 CST Wed Jan 22 2020
validblock_diagnose, code = 2

current memory block, bp = 0x7F2AB484CD98,
memorypool type is Processor
data check, ptr = 0x7F2AB484CDF0

next memory block, bp = 0x7F2AB484CE68,
memorypool type is Processor
data check, ptr = 0x7F2AB484CEC0

previous memory block, bp = 0x7F2AB484CCC0,
memorypool type is Processor
data check, ptr = 0x7F2AB484CD18

...


Jan 22 2020 09:09:17.882 CST: %SYS-3-BADMAGIC: Corrupt block at 80007F2AB484CD98 (magic 00000000)
-Traceback= ...
Jan 22 2020 09:09:17.883 CST: %SYS-6-MTRACE: mallocfree: addr, pc ...
Jan 22 2020 09:09:17.884 CST: %SYS-6-MTRACE: mallocfree: addr, pc ...
Jan 22 2020 09:09:17.884 CST: %SYS-6-BLKINFO: Corrupted magic value in in-use block blk 80007F2AB484CD98, words 60, alloc 800055EE2228A380, InUse, dealloc 0, rfcnt 1
-Traceback= ...

Conditions:
Currently under investigation
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