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Memory leak of netLogin process causing SummitStack to crash.

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TitleMemory leak of netLogin process causing SummitStack to crash.
Symptoms
Sometime SummitStack of G2 platforms can crash if mac-based netlogin is configured and switch receives excessive traffic.
Before crash following error messages can be detected in logs:
02/22/2017 06:17:19.13 <Crit:Kern.Card.Emergency> Epm application wdg timer warning - 40 sec, kepc 0xffffffff805fe56c(schedule_timeout+0x64/0xe0) uepc 0x2aaec2e8.
02/22/2017 06:17:09.02 <Crit:Kern.Card.Emergency> Epm application wdg timer warning - 30 sec, kepc 0xffffffff805fe56c(schedule_timeout+0x64/0xe0) uepc 0x2aaec2e8.
02/22/2017 06:16:58.89 <Crit:Kern.Card.Emergency> Epm application wdg timer warning - 20 sec, kepc 0xffffffff805fe56c(schedule_timeout+0x64/0xe0) uepc 0x2aaec2e8.
02/22/2017 06:16:36.38 <Warn:EPM.Msg.hello_rate> Process policy sends hello too often, expected once in 5 secs
02/22/2017 06:16:36.38 <Warn:EPM.hello_rate> Received hellos from process policy 2 more often then expected 3
02/22/2017 06:16:36.38 <Warn:EPM.Msg.hello_rate> Process mrp sends hello too often, expected once in 5 secs
02/22/2017 06:16:36.38 <Warn:EPM.hello_rate> Received hellos from process mrp 2 more often then expected 3
02/22/2017 06:16:36.38 <Warn:EPM.Msg.hello_rate> Process twamp sends hello too often, expected once in 5 secs
02/22/2017 06:16:36.38 <Warn:EPM.hello_rate> Received hellos from process twamp 2 more often then expected 3
Netlogin process consumes a lot of memory:
-> show memory  
System Memory Information
-------------------------
 Slot-2    Total DRAM (KB): 1048576
 Slot-2    System     (KB): 64388
 Slot-2    User       (KB): 751152
 Slot-2    Free       (KB): 233036
 Slot-1    Total DRAM (KB): 1048576
 Slot-1    System     (KB): 64388
 Slot-1    User       (KB): 280576
 Slot-1    Free       (KB): 703612
 
Memory Utilization Statistics
-----------------------------
 
 Card Slot Process Name     Memory (KB)
———————————————————
[..]         
 Slot-2 2   netLogin         452684
Environment
  • EXOS 16.1.3, 21.1.1
  • SummitStack of G2 platforms
  • NetLogin with mac-based authentication enabled
Cause
Possible root cause is an internal CR xos0064713.
Resolution
Upgrade to one of the following EXOS versions or newer:
  • 16.2.1
  • 16.1.3.6-patch1-9
  • 22.1.1
  • 21.1.2
Additional notes

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