欢迎我遇到uv4l问题，我无法解决。 我安装了带有摄像机的rpi3b +，并且我正在使用v4l2来传输h264视频。 当客户端断开连接uv4l变得不可用并且我无法重新启动服务时，仅重新启动帮助会发生问题。 只是为了澄清我尝试添加gpu mem（256），它没有帮助。 我搜索了这个问题，但没有发现任何问题
有人可以帮忙吗？
下面我附加了堆栈错误
[ 4306.059706] Unable to handle kernel NULL pointer dereference at virtual address 00000028
[ 4306.066563] pgd = b3c40000
[ 4306.069842] [00000028] *pgd=33dbc835, *pte=00000000, *ppte=00000000
[ 4306.073205] Internal error: Oops: 17 [#3] SMP ARM
[ 4306.076450] Modules linked in: rtc_ds1307 brcmfmac brcmutil cfg80211 rfkill snd_bcm2835(C) snd_pcm snd_timer snd i2c_bcm2835 w1_therm w1_gpio wire cn hwmon fixed uio_pdrv_genirq uio cuse fuse i2c_dev ip_tables x_tables ipv6
[ 4306.086312] CPU: 3 PID: 16644 Comm: uv4l Tainted: G D C 4.14.30-v7+ #1102
[ 4306.092658] Hardware name: BCM2835
[ 4306.095706] task: b310cb00 task.stack: b3fc6000
[ 4306.098704] PC is at tcp_push+0x44/0x148
[ 4306.101593] LR is at tcp_sendmsg_locked+0x308/0xdfc
[ 4306.104413] pc : [<806ce384>] lr : [<806d1950>] psr: 40000013
[ 4306.107214] sp : b3fc7d98 ip : b33593bc fp : b3fc7dbc
[ 4306.109945] r10: b30b9e00 r9 : ffffffe0 r8 : b33593bc
[ 4306.112642] r7 : 00000000 r6 : 000005b4 r5 : 00000000 r4 : b33592c0
[ 4306.115298] r3 : 00000001 r2 : 000005b4 r1 : 00000000 r0 : b2896000
[ 4306.117859] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 4306.120466] Control: 10c5383d Table: 33c4006a DAC: 00000055
[ 4306.123015] Process uv4l (pid: 16644, stack limit = 0xb3fc6210)
[ 4306.125520] Stack: (0xb3fc7d98 to 0xb3fc8000)
[ 4306.128043] 7d80: 00007d78 806d1930
[ 4306.132928] 7da0: 00000ef0 b3fc7ec0 b33592c0 00000ef0 b3fc7e54 b3fc7dc0 806d1950 806ce34c
[ 4306.137782] 7dc0: 00007d78 00000000 b3fc7df4 b33592c0 80c069c4 80d0a08c 80c049c0 b3fc6000
[ 4306.142640] 7de0: 00000000 b310d15c 00000001 00000000 00000000 00000000 b3fc7e24 00000200
[ 4306.147642] 7e00: 00000001 b3359410 000005b4 00000000 00000121 00007d78 7fffffff b3fc7e28
[ 4306.152974] 7e20: 801235c4 801e0000 b33592c0 b33592c0 00001000 b3fc7ec0 00000121 80108224
[ 4306.158613] 7e40: b3fc6000 00000000 b3fc7e74 b3fc7e58 806d247c 806d1654 806d2444 b33592c0
[ 4306.164522] 7e60: 00000000 a5ee1dc0 b3fc7e94 b3fc7e78 806fe570 806d2450 802aa2ac 802aa200
[ 4306.170741] 7e80: 00000000 00000000 b3fc7ea4 b3fc7e98 80657c84 806fe534 b3fc7f8c b3fc7ea8
[ 4306.177157] 7ea0: 80658dd4 80657c6c b3fc7ec8 80b8cd40 fffffff7 00000001 007c4518 00001000
[ 4306.183753] 7ec0: 00000000 00000000 00000001 00000ef0 00000110 b3fc7eb8 00000001 b310cb00
[ 4306.190621] 7ee0: 00000000 00000000 00000000 b6ffad40 b310cb00 b314e900 b5c656c0 b5c656c0
[ 4306.197599] 7f00: 000003ea 8080262c b3fc7f74 b3fc7f18 8078413c 80145970 80149270 80789a34
[ 4306.204564] 7f20: a0000193 8012377c b3fc7f44 b3fc7f38 808024bc 3646e000 807847b0 b6ffad40
[ 4306.211535] 7f40: 75d08cd8 00000000 b3fc6000 b3fc6000 b3fc6010 80108224 b3fc7fb0 80108224
[ 4306.218504] 7f60: b3fc6000 00000002 b3fc6010 80108224 b3fc7fb0 00001000 007c4518 716005d0
[ 4306.225458] 7f80: b3fc7fa4 b3fc7f90 80658e24 80658d18 00000000 00000000 00000000 b3fc7fa8
[ 4306.232410] 7fa0: 80108080 80658e08 00001000 007c4518 0000000f 007c4518 00001000 00000000
[ 4306.239362] 7fc0: 00001000 007c4518 716005d0 00000121 00001000 754ec750 00000000 00000001
[ 4306.245984] 7fe0: 00000000 6e6fe7a0 00000000 76f65984 80000010 0000000f 00000000 00000000
[ 4306.248996] [<806ce384>] (tcp_push) from [<806d1950>] (tcp_sendmsg_locked+0x308/0xdfc)
[ 4306.251994] [<806d1950>] (tcp_sendmsg_locked) from [<806d247c>] (tcp_sendmsg+0x38/0x4c)
[ 4306.255039] [<806d247c>] (tcp_sendmsg) from [<806fe570>] (inet_sendmsg+0x48/0xe4)
[ 4306.258108] [<806fe570>] (inet_sendmsg) from [<80657c84>] (sock_sendmsg+0x24/0x34)
[ 4306.261166] [<80657c84>] (sock_sendmsg) from [<80658dd4>] (SyS_sendto+0xc8/0xf0)
[ 4306.264202] [<80658dd4>] (SyS_sendto) from [<80658e24>] (SyS_send+0x28/0x30)
[ 4306.265758] [<80658e24>] (SyS_send) from [<80108080>] (ret_fast_syscall+0x0/0x28)
[ 4306.268773] Code: e155000c 03a05000 e2117902 1a000039 (e5d50028)
[ 4306.270396] ---[ end trace cdc1fb8572f58b0e ]---