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Kernel Oops Crash

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TitleKernel Oops Crash
Symptoms
Kernel oops triggered infrequently could be during continuous addition/deletion of ARP entries for long duration. When ARP queue is purged, the neighbor entry isn't protected Hence causing the kernel oops triggering for the crash.
Environment
  • All EXOS platforms
  • EXOS 15.3.1
Cause
kernel oops noticed because of an unprotected  ARP table.
The reason for this unprotected ARP table as below:
Kernel oops triggered infrequently could be during continuous addition/deletion of ARP entries for long duration. When ARP queue is purged, the neighbor entry isn't protected Hence causing the kernel oops triggering for the crash.

 
Resolution
To fix the issue Engineering suggested to implement the CR:xos0063089. To avoid the issue it is needed to upgrade to latest patch of one of the following EXOS releases that contains a xos0063089:
  • EXOS 21.1.1 (Released)
  • EXOS 16.2.1 (Released)
  • EXOS 15.5.5-GA-Feb16 (Released)
  • EXOS 15.6.4-GA-Jan16 (Released)
  • EXOS 16.1.2-GA-Jan16 (Released)
  • EXOS 15.3.5-GA-Apr16 (Released)
  • EXOS 15.7.3-GA-Jan16 (Released)

 
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