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Cisco Bug: CSCus29873 - Active RP Crash on EoGRE Session Scale

Last Modified

Jun 30, 2018

Products (16)

  • Cisco IOS
  • Cisco ASR 901-6CZ-F-D Router
  • Cisco ASR 901-6CZ-FS-D Router
  • Cisco ASR 901S-4SG-F-D Router
  • Cisco ASR 901-4C-FT-D Router
  • Cisco ASR 901S-2SG-F-D Router
  • Cisco ASR 901-6CZ-F-A Router
  • Cisco ASR 901S-2SG-F-AH Router
  • Cisco ASR 901-6CZ-FT-A Router
  • Cisco ASR 901-12C-FT-D Router
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Known Affected Releases


Description (partial)

Active RP crashed during the session scale test of secure and open subscriber on EoGRE tunnel interface

The issue seems to be happenning because of addition and deletion of static routes   
happenning in the same process context.
This happens when there are duplicate static routes added by both IPSUB and          
DHCP-process.The following crash is seen in the IP-STATIC Process context when       
timer triggers the deletion of the DHCP sessions.

UNIX-EXT-SIGNAL: Segmentation fault(11), Process = static
-Traceback= 1#a63a0ff64bc70c93327f669c236625f0  :7FE136AC6000+853E6E7                
:7FE136AC6000+853E2D4 :7FE136AC6000+853C3F3 :7FE136AC6000+853BCEC                   

Below are the crash-decodes :-

%  0x7f7cc073b468 : __be_ipstatic_dlink_link + 40 (self)
%  0x7f7cc07463e1 : __be_ip_static_update_dupkey_sre + 401 (self)
%  0x7f7cc0745cec : __be_ipstatic_process_workq + 124 (self)
%  0x7f7cc0745c4d : __be_ip_static_route + 573 (self)
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