Cisco Bug: CSCut43453 - Fatal Signal 11: Segmentation fault PC: dh_api_get_sockets_handler()
Dec 25, 2016
- Cisco ASR 5000 Series
Known Affected Releases
sessmgr crash Symptom: Fatal Signal 11: Segmentation fault PC: [0b861800/X] dh_api_get_sockets_handler() Faulty address: 0xa4e90010 Signal from: kernel Signal detail: address not mapped to object Process: card=10 cpu=0 arch=X pid=1470 cpu=~25% argv0=sessmgr Crash time: 2015-Mar-13+16:15:52 UTC Recent errno: 11 Resource temporarily unavailable Stack (10136@0xffffb000): [0b861800/X] dh_api_get_sockets_handler() sp=0xffffb148 [0b1a1eda/X] sn_msg_arriving_handle() sp=0xffffd258 [0b184e56/X] sn_loop_run() sp=0xffffd718 [0ae7f12d/X] main() sp=0xffffd788 Conditions: Sessmgrs are using dhost for ipne connections. All the seg-fault has happened in sessmgrs, not in diamproxy or connproxy. The cause of the seg-fault is an invalid slist element which has happened either due to memory corruption/ due to free-ed memory access.
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