I have been informed by the server team that, their server got rebooted due to heartbit fail. Those servers are connected to Cisco3750Stack Switch.
I have check the switch log and observed, the switches has been crashed at the same time when server got rebooted.
But I am not able to understand the reason for crash the switch.
anyone can help me out on this. I have attached the log herewith.
I don't think he is hitting bug ID CSCsc59027, this bug is pretty old and should be resolved in the version that he is using.
However I do agree the author of the post should open a TAC and to troubleshoot further.
Thanks for the rating!!
Here is the link to the Bug Toolkit
You have to have a CCO account to be able to access it.
The best course of action for you is to open a TAC case and send them the crash file to be analogized
On you 3750 do a "sh flash" and post the entire crash file.
From the log files you attached it looks as you are having memory leak in your 3750 stack.
You should also open a TAC case and send them the crash file for analysis.
Here is the bug idea and the workaround for it:
This problem has been observed only when switches are stacked
When "ip routing" is disabled and master switch has been changed (master failure or change master priority/reload)
slow constant memory leak will happen in CEF IPC Background.
This happen only if "ip routing" is disabled
Enable ip routng and reload switch stack.
|C3750 crashed suddenly with debug exception.|
|SymptomCustomers using a Catalyst 3750 might experience an unexpected reload of the master switch of their stack of 3750's due to a Debug Exception (Could be NULL pointer dereference) Conditions: Conditions: So far this problem has been seen only on stacks of 3750 switches that have IP routing disabled. The up time of these switches has been around 46-52 weeks. Workaround:The root cause of this crash seems to be a slow memory leak resulting in the crash of the 3750 master switch when the memory has been exhausted. To verify this customer's are advised to monitor the memory usage on the switch. A possible cause for a memory leak when ip routing is disabled could be: CSCsc59027: mem leak in func. fib_memory_alloc_named_internal|
|C3750 reloaded unexpectedly with Debug Exception|
|Symptom: In the same customer's network, some C3750s crashed suddenly at almost the same time, around 43 weeks after installation. I got 2 types of decode results for these cases. There are a few similar defects in data base , but those results are not as same as this decode results . Conditions:- all crashed switches were masters in a stacked configuration that consisted of 1 master c3750 and a slave c3750 - all crashes occurred in a few days interval - other c3750s that were installed at the same time and run about the same coninguration are working properly - SNMP is enabled on all switches - HRPC process was w|
|Memory leak in CEF IPC Backgrou after Master switchover with L2-image|
|Symptom:Memory leak in CEF IPC Backgrou after Master switchover with L2-image. Conditions:[Topology] 3750G-24PS_A | stack | 3750G-24PS_B(Gig2/0/24)---Lab_backBone 3750G-24PS_A and _B is two box Stack. It is running c3750-ipbase-mz.122-25.SED1. The IP routing is disable. Workaround: The reload all Stack is stop memory leak.|