Cisco Bug: CSCta99181 - Diagnostic failure and boot loop with "diagnostic level power-on"
Feb 04, 2017
- Cisco 7300 Series Routers
Known Affected Releases
Symptom: 7300 NPEG100 fails diagnostics and is stuck in a boot loop following a crash or power cycle: System Power On Diagnostics DRAM Size ....................1024 MB Testing DRAM..................Passed Level2 Cache .................Present Testing Level2 Cache (512 KB) Read Miss Fails to fill Cache - CPU Cache Invalidation mechanism fails Exp: 6B1A4D0 Got: 0 at Address 46B1A4D0 46B1A4D0/0, 46B1A4D4/1, 46B1A4D8/2, 46B1A4DC/3, 46B1A4E0/A6B1A4E0, 46B1A4E4/A6B1A4E4, 46B1A4E8/A6B1A4E8, 46B1A4EC/A6B1A4EC, Failed %ERROR: POWER-ON DIAGNOSTICS FAILED, SYSTEM BOOT ABORTED System Bootstrap, Version 12.2(14r)SZ1, RELEASE SOFTWARE (fc1) TAC Support: http://www.cisco.com/tac Copyright (c) 2003 by cisco Systems, Inc. C7300 platform with 1048576 Kbytes of main memory Conditions: This has been seen on a 7300 NPEG100 running IOS versions 12.2(33)SB5 and 12.2(33)SB6. Only seen when power on diagnostics are enabled: "diagnostic level power-on"
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