hostapd 无法创建 AP,实在找不出哪里出了错

wlan0: ACS-COMPLETED freq=5745 channel=149
Completing interface initialization
Mode: IEEE 802.11a Channel: 149 Frequency: 5745 MHz
DFS 0 channels required radar detection
Could not set channel for kernel driver
Interface initialization failed

调试信息我看过

DFS 0 channels required radar detection
Could not set channel for kernel driver


* 5180 MHz [36] (23.0 dBm)
* 5200 MHz [40] (23.0 dBm)
* 5220 MHz [44] (23.0 dBm)
* 5240 MHz [48] (23.0 dBm)
* 5260 MHz [52] (23.0 dBm) (no IR, radar detection)
* 5280 MHz [56] (23.0 dBm) (no IR, radar detection)
* 5300 MHz [60] (23.0 dBm) (no IR, radar detection)
* 5320 MHz [64] (23.0 dBm) (no IR, radar detection)
* 5500 MHz [100] (disabled)
* 5520 MHz [104] (disabled)
* 5540 MHz [108] (disabled)
* 5560 MHz [112] (disabled)
* 5580 MHz [116] (disabled)
* 5600 MHz [120] (disabled)
* 5620 MHz [124] (disabled)
* 5640 MHz [128] (disabled)
* 5660 MHz [132] (disabled)
* 5680 MHz [136] (disabled)
* 5700 MHz [140] (disabled)
* 5720 MHz [144] (disabled)
* 5745 MHz [149] (30.0 dBm)
* 5765 MHz [153] (30.0 dBm)
* 5785 MHz [157] (30.0 dBm)
* 5805 MHz [161] (30.0 dBm)
* 5825 MHz [165] (30.0 dBm)
* 5845 MHz [169] (disabled)


[root@centos ~]# iw reg get
global
country CN: DFS-FCC
(2402 - 2482 @ 40), (N/A, 20), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 59400 @ 2160), (N/A, 28), (N/A)
(59400 - 63720 @ 2160), (N/A, 44), (N/A)
(63720 - 65880 @ 2160), (N/A, 28), (N/A)

phy#0
country US: DFS-FCC
(2402 - 2472 @ 40), (N/A, 30), (N/A)
(5170 - 5250 @ 80), (N/A, 23), (N/A), AUTO-BW
(5250 - 5330 @ 80), (N/A, 23), (0 ms), DFS, AUTO-BW
(5490 - 5730 @ 160), (N/A, 23), (0 ms), DFS
(5735 - 5835 @ 80), (N/A, 30), (N/A)
(57240 - 63720 @ 2160), (N/A, 40), (N/A)

149 不应该需要 DFS，换 channel 或者有干扰？