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4500 IOS-XE: Crash on ACL configuration

Hi All ,

We have recently migrated from standalone to VSS on our C4500 switches with Sup 7-E.

but the switch crashes every time we edit or modify the ACL with below error message :

%SYS-3-BADBLOCK: Bad block pointer

%SYS-6-MTRACE: mallocfree: addr, pc

%SYS-6-BLKINFO: Corrupted next pointer blk

%SYS-6-MEMDUMP: 0x7E043FF8

We noticed that there is a new bug for this issue i.e

CSCun33897 Symptom:
A Catalyst 4500 series switch running IOS-XE may unexpectedly reboot when ACL configuration is applied to an interface.

but there is no fix available yet.

Please let me know if anyone had this kind of issue. Appreciate your suggestion and feedback on this issue .

Current used Image : cat4500e-universalk9.SPA.03.05.00.E.152-1.E.bin.

Thanks in advance .

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Duplicate post. Go here:

Duplicate post. 


Go here:  https://supportforums.cisco.com/discussion/12224461/4500-ios-xe-crash-acl-configuration

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