My Cisco WS-C4507R has rebooted twice in 24 hours, first time it showed âSystem returned to ROM by watchdog timer expiredâ in show version command and in second time it appears âSystem returned to ROM by abort at PC 0x0â. The crashinfo of second time is attached herewith. Kindly help me sort of the issue.
IOS version = bootflash:cat4500-ipbasek9-mz.122-37.SG1.bin
Attached crashinfo is the 2nd one, I won't be able to collect 1st one. I know attached file contain nothing indicating to crash, moreover switch didn't leave any unusal logs on syslog server before going down. That's the thing freaking me out, there is no trace not a hint that depicts whether it's a software or hardware related.
The system normally restart by abort if the configuration register value's 8'th bit is set to 0, in this case if there any break sequence from the user or from the hyperterminal the system will reboot and goes to ROMMON mode with the error message on the show version as the system rebooted by Abort.
Otherwise, this could be an issue with Software related, you may have to upgrade the software.
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