i.MX Processorsのトピックandroid hangs in open_devnull_stdio() ( inside init)

android hangs in open_devnull_stdio() ( inside init)

VAISAKH — Fri, 05 Oct 2012 05:58:00 GMT

Dear all,

I have a imx6q based hardware ) .I am trying to port android on it. I am using freescale r13.3 android .

With NFS its works fine..

But booting from SD cards fails.After digging through init code I found it hangs in side

open_devnull_stdio().. function at dup2(fd,1);

Please see bootargs below,

bootargs=console=ttymxc0 , 115200 init=/init rw video=mxcfb0 fbmem=5M vmalloc=400M root=/dev/mmcblk0p4 androidboot.console=ttymxc0 ..

( Using UART1 for debugging )

please help me

Thanks in advance

Re: android hangs in open_devnull_stdio() ( inside init)

VAISAKH — Sun, 07 Oct 2012 08:18:56 GMT

Anybody,Please help?

Re: android hangs in open_devnull_stdio() ( inside init)

RichardZhao — Mon, 08 Oct 2012 03:04:48 GMT

Could you prove full log and memory size? And you can also try to decrease vmalloc=xxx.

Re: android hangs in open_devnull_stdio() ( inside init)

VAISAKH — Mon, 08 Oct 2012 03:59:29 GMT

Hello,

Thanks for the reply.I have tried with the vmalloc = 128 and 64 M but hanged at the same place .)

Please see my logs attached with this post

Memory is 2GB ....

With thanks

Vaisakh N

Re: android hangs in open_devnull_stdio() ( inside init)

imxcommunitysco — Fri, 26 Oct 2012 02:42:26 GMT

Hi Vaisakh,

In reviewing your kernel boot arguments, I don't know if you have provided the complete set, but I would suggest removing the 'root=/dev/mmcblk0p4' option. This is not necessary to explicitly define the root file system since the root file system is a composite of the RAM disk and mounted file systems.

If the above suggestion does not work, it would also be helpful to attach the output of the console when the kernel boots. This would provide the entire kernel command line and potential insight into what might be happening.

On a side note, we are moving away from supporting R13.3 release for i.MX 6 since the supported release is the R13.4 GA release.

Thanks,