imx6 + gstreamer 四路摄像头退出显示时系统崩溃

yaweq · 发表于 2016-7-4 01:18:39

使用如下命令使四路摄像头同屏显示，可以正常显示，
gst-launch v4l2src device=/dev/video0  ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! queue ! mfw_isink disp-width=512

gst-launch v4l2src device=/dev/video1  ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! queue ! mfw_isink disp-width=512

gst-launch v4l2src device=/dev/video2  ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! queue ! mfw_isink disp-width=512

gst-launch v4l2src device=/dev/video3  ! 'video/x-raw-yuv, format=(fourcc)UYVY' ! queue ! mfw_isink disp-width=512

但是有时候想退出摄像头显示，使用kill -2 pid1 pid2 pid3 pid4 的方式关闭四个进程，但是这样的话，有很大概率系统崩溃，显示如下：
ExecuUnable to handle kernel paging request at virtual address ca499000
tion ended after 1000159667 ns.
pgd = b8524000
Setting pipeline to PAUSED ...
h[ca499000] *pgd=4886e811andling interrupt.
Interrupt: St, *pte=00000000opping pipeline ...
Execution en, *ppte=00000000ded after 1000581001 ns.
Setting
pipeline to PAUSED ...
Setting Internal error: Oops: 807 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 Not tainted  (3.0.35 #2)
PC is at memcpy+0x50/0x330
LR is at 0x407040c0
pc : [<802355b0>] lr : [<407040c0>] psr: 20000113
sp : b80a7d54  ip : 407040c0  fp : 80afda70
r10: 00000b40  r9 : 8003d278  r8 : 407040c0
r7 : 407040c0  r6 : 407040c0  r5 : 407040c0  r4 : 407040c0
r3 : 407040c0  r2 : 00000180  r1 : ff9949e0  r0 : ca499000
Flags: nzCv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c53c7d  Table: 4852404a  DAC: 00000015
Process gst-launch-0.10 (pid: 3401, stack limit = 0xb80a62f0)
Stack: (0xb80a7d54 to 0xb80a8000)

请问该问题如何解决，是官方mfw_isink插件有问题，还是我的退出方式不正确？

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