Cisco Bug: CSCsy88640 - nested crash in crashinfo collection.
Feb 15, 2018
- Cisco IOS
Known Affected Releases
12.2SXH 12.2SXI 12.4(24.6)PI11h 12.4(24.6)T4
Symptoms: There are two unrelated problems fixed by this bug: Problem 1: A core dump may fail to write, with the following errors seen on the console: current memory block, bp = 0x4B5400A0, memorypool type is Exception data check, ptr = 0x4B5400D0 bp->next(0x00000000) not in any mempool bp_prev(0x00000000) not in any mempool writing compressed ftp://10.0.0.1/testuncached_iomem_region.Z [Failed] writing compressed ftp://10.0.0.1/testiomem.Z [Failed] writing compressed ftp://10.0.0.1/test.Z [Failed] %No memory available Problem 2: A nested crash might occur while generating a crashinfo. That means that this bug only helps the crashinfo to write properly. It does not fix the cause of the original crash, but will aid investigation. Conditions: Problem 1: This is only seen for memory corruption crashes when "exception region-size" is configured to a value that is not divisible by 4. Problem 2: BFD must be configured and sending hellos.
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