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Cisco Bug: CSCvv04285 - Assertion failure at sn_memblock_cache_get_mcblock_by_addr()

Last Modified

Sep 24, 2020

Products (1)

  • Cisco ASR 5000 Series

Known Affected Releases

21.12.3

Description (partial)

Symptom:
The following sessmgr restart with below stack occurred:

********************* CRASH #34 ***********************
SW Version          : 21.12.3
Similar Crash Count : 4
Time of First Crash : 2020-Mar-23+20:59:06

Assertion failure at snutil/sn_memblock.c:310
  Function: sn_memblock_cache_get_mcblock_by_addr()
  Expression: mcblock->cachep == cache
  Proclet: sessmgr (f=87000,i=92)
  Process: card=6 cpu=0 arch=X pid=20857 cpu=~20% argv0=sessmgr
  Crash time: 2020-Jul-09+05:34:19 UTC
  Recent errno: 11 Resource temporarily unavailable
  Build_number: 71354
  Stack (29800@0x0xff9ad000):
    [ffffe430/X] __kernel_vsyscall() sp=0xff9ad338
    [0cae16fb/X] sn_assert() sp=0xff9ad378
    [0cad9cb5/X] sn_memblock_memcache_free() sp=0xff9ad3c8
    [0cad4e15/X] sn_slist_remove_by_key() sp=0xff9ad458
    [08b78c9f/X] mme_app_destroy_ue_ctxt() sp=0xff9b00f8
    [08b79ae0/X] mme_disp_handle_destroy_action_codes() sp=0xff9b0138
    [08c385c5/X] mme_disp_handle_emm_evt() sp=0xff9b07d8
    [08c4915b/X] mme_disp_disconnecting_handle_sgsap_msg() sp=0xff9b0828
    [08bc2b78/X] mme_fsm_event_handler() sp=0xff9b0ce8
    [08c67e4c/X] mme_app_sgs_event_dispatch() sp=0xff9b0fb8
    [08c8125e/X] sgsap_handle_incoming_message() sp=0xff9b1938
    [03746fb9/X] sessmgr_process_imsimgr_sgs_forward_req() sp=0xff9b1978
    [049a493f/X] sessmgr_handle_imsimgr_bulk_forward_req.part.8() sp=0xff9b1e08
    [049a4bde/X] sessmgr_handle_imsimgr_bulk_forward_req() sp=0xff9b1e48
    [0cb95a68/X] sn_msg_arriving_handle() sp=0xff9b3f38
    [0cb74406/X] sn_loop_run() sp=0xff9b43e8
    [0c869055/X] main() sp=0xff9b4458
  Last Bounce:

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