Failed to start softAp

[sunxiaohuix]

root@edison:# systemctl start hostapd
Job for hostapd.service failed. See 'systemctl status hostapd.service' and 'journalctl -xn' for details.
root@edison:# systemctl status hostapd.service
● hostapd.service - Hostap daemon service
Loaded: loaded (/lib/systemd/system/hostapd.service; disabled)
Active: failed (Result: signal) since Wed 2016-01-20 07:25:51 UTC; 10s ago
Process: 363 ExecStartPre=/sbin/modprobe -r bcm4334x (code=killed, signal=SEGV)

Jan 20 07:25:51 edison systemd[1]: hostapd.service: control process exited, code=killed status=11
Jan 20 07:25:51 edison systemd[1]: Failed to start Hostap daemon service.
Jan 20 07:25:51 edison systemd[1]: Unit hostapd.service entered failed state.
root@edison:#
root@edison:# journalctl -xn
-- Logs begin at Sat 2000-01-01 00:00:12 UTC, end at Wed 2016-01-20 07:32:14 UTC. --
Jan 20 07:32:14 edison xdk-daemon[697]: at Function.Module._load (module.js:280:25)
Jan 20 07:32:14 edison xdk-daemon[697]: at Module.require (module.js:364:17)
Jan 20 07:32:14 edison xdk-daemon[697]: at require (module.js:380:17)
Jan 20 07:32:14 edison xdk-daemon[697]: at Object. (/opt/xdk-daemon/current/node_modules/mdns/lib/dns_sd.js:32:22)
Jan 20 07:32:14 edison xdk-daemon[697]: at Module._compile (module.js:456:26)
Jan 20 07:32:14 edison xdk-daemon[697]: at Object.Module._extensions..js (module.js:474:10)
Jan 20 07:32:14 edison xdk-daemon[697]: at Module.load (module.js:356:32)
Jan 20 07:32:14 edison xdk-daemon[697]: at Function.Module._load (module.js:312:12)
Jan 20 07:32:14 edison xdk-daemon[697]: at Module.require (module.js:364:17)
Jan 20 07:32:14 edison xdk-daemon[697]: ps process exited with code 8