在带有C310的Raspberry pi 3上使用UV4L

Question

我在试着让uv4l和罗技310相机一起工作。我转到地址XXX:8090/stream，它工作了几秒钟，然后停止。为了找回它，我需要重新启动pi。此外，它有时会输出以下内容：

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491012] Internal error: Oops: 80d [#1] SMP ARM

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491317] Process uv4l (pid: 575, stack limit = 0xb29d4210)

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491328] Stack: (0xb29d5d74 to 0xb29d6000)

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491341] 5d60:                                              80611830 b29d5d87 000346db

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491359] 5d80: 80c05dcc 00c02d00 00000004 000005a8 000005a8 00000000 b292d140 b29d5ec0

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491376] 5da0: b292d140 00000b50 b29d5ddc b29d5db8 8067a204 80611750 b29d5ddc b29d5dc8

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491392] 5dc0: 000005a8 000005a8 b292d220 b6172180 b29d5e74 b29d5de0 8067ad5c 8067a1b4

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491408] 5de0: b29d5dfc b29d5df0 00000000 76149afc b29d5e24 80c06984 80d04818 80c0495c

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491424] 5e00: b29d4020 00000000 00000000 00000000 b29d5e0c b3610000 00000001 b29d5ec8

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491440] 5e20: b292d250 00000000 00000000 000005a8 00000000 000005a8 7fffffff a65d0f74

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491456] 5e40: b3782800 80280000 b56b2f00 b292d140 00000000 9888e540 00000121 80108244

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491472] 5e60: b29d4000 00000000 b29d5e94 b29d5e78 806a513c 8067a978 8028fa98 8028fa04

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491488] 5e80: 00000000 00000000 b29d5ea4 b29d5e98 8060a878 806a50ac b29d5f8c b29d5ea8

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491504] 5ea0: 8060b914 8060a860 b29d5ec8 b29d5eb8 fffffff7 00000001 7613c388 00001000

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491520] 5ec0: 00000000 00000000 00000001 00000b50 000004b0 b29d5eb8 00000001 b3610000

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491535] 5ee0: 00000000 00000000 00000000 00000000 b349d6c0 b5991d80 00000000 80b7e940

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491551] 5f00: b29d5f74 b29d5f10 807146b4 8014472c 0000000a 80c7b980 80c71eb8 80c0312c

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491567] 5f20: 80b793b8 00000000 00000001 00000081 76149ae0 80108244 b29d4000 00000001

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491583] 5f40: b29d5fa4 b29d5f50 8019d6a0 8019c92c 00000000 00000000 ffffffff 00000000

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491598] 5f60: b29d4000 00000002 b29d4010 00000000 b29d5fb0 73a00480 7613c388 00000000

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491614] 5f80: b29d5fa4 b29d5f90 8060b964 8060b858 00000000 00000000 00000000 b29d5fa8

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491630] 5fa0: 801080c0 8060b948 73a00480 7613c388 0000000e 7613c388 00001000 00000000

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491646] 5fc0: 73a00480 7613c388 00000000 00000121 7613c388 71bac3b0 758ec150 00000001

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491662] 5fe0: 00000000 7533b790 76ec7504 76ec82f4 80000010 0000000e 00000000 00000000

Message from syslogd@raspberrypi at Mar  7 18:31:37 ...
 kernel:[  320.491831] Code: a8a0500c cafffff9 08bd8000 e3110020 (18a0500c) 

我遵循了这个指南http://www.linux-projects.org/uv4l/installation/。我看过无数的视频，人们都在做同样的事情，但对我来说就是行不通。如果还有什么需要帮助的，请告诉我。

Answer 1

你得到了一个内核的oops。这意味着在内核内部发生了一些不好的事情。最有可能的是，存在与用户空间USB I/O相关的内核错误，因为uv4l的UVC驱动程序正在使用这一点。尝试升级Raspberry Pi上的内核，并检查问题是否仍然存在。

bug可能是由摄像头的正常I/O触发的，但也可能是有一些异常导致来自摄像头的意外数据，然后内核对其进行了糟糕的处理。可能的原因可能是坏的USB电缆或连接器，或者Pi并非完全不可能，电源不足，无法保持足够高的电压，使硬件能够可靠地运行。