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Cisco Stack Switches getting down suddenly

Posted on 2015-01-30
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Last Modified: 2015-02-06
In Our network setup the core layer 3 switches are stack switches  .The downstream switches connected to this master switch are powered down one by one and finally the master/slave  switches are getting powered down and  suddenly bringing the entire network down. Upon analyzing the logs in the core layer 3 switch when this issue occurred ,these error messages were found

Jan 28 23:39:32: %PLATFORM_RPC-3-MSG_THROTTLED: RPC Msg Dropped by throttle mechanism: type 37, class 14, max_msg 32, total throttled 9984
-Traceback= 533568z 218281Cz 2441464z 2446EC0z 241AFA4z 26D5768z 26CF5DCz

Jan 28 23:40:18: %SUPQ-4-CPUHB_RECV_STARVE: Still seeing receive queue stuck after throttling

What is the Possible cause for this issue? Is there a way  to prevent this from happening again?Experts kindly advice.
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Question by:Pillaya8
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Stephen Berk earned 500 total points
ID: 40581044
I put your text through Cisco's output tool and it pointed to https://tools.cisco.com/bugsearch/bug/CSCed03214. The code base affected by the bug is older, but it might give you some insight into possible causes. And since you mention the whole network coming down, it might be accurate because a STP loop like mentioned in the bug report would definitely ramp CPU to 100%.

Screenshots of the bug report and output tool are attached in case you don't have a Cisco support account.
output-tool.PNG
bug-report.PNG
bug-report2.PNG
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