schedule problem

[Altera_Forum]

hi all, 

i write a kernel module, when i insmod it,   the following is output:  bad: scheduling while atomic! Stack from 081dff8c:<0>  <0> ffffe000<0> 08189464<0> 081b0e94<0> 02625a00<0> 00000000<0> 00000000<0> 00000000<0> 00000000<0>  <0> 00000000<0> 00000000<0> 00000000<0> 00000000<0> 08fc0428<0> 00000000<0> 00000001<0> 00000002<0>  <0> 08fc04d8<0> ffffe000<0> 00000000<0> 0800305c<0> 0800307c<0> 080001a0<0> 081fc4e0<0> 081e0790<0>  <0> 081e0298<0> 081f45bc<0> 08800000<0> 08006860<0> 08000100<0> Call Trace:<0>   where it may be wrong? and how can i trace the kernel routine?  in x86 platform, i can use kgdb to debug it, now in nios2, how should i do?  thanks for your help.

[Altera_Forum]

It may be out of memory,or corrupted. 

How do you build the module? What is your build enviroment ? Did you strip out unnecessary? You may use printk() to debug.

[Altera_Forum]

thanks for your care, 

 my build enviroment is correct, in nios2 sdk enviroment. but i don&#39;t know where i put the printk(), these messages is out of schedule(), i don&#39;t know which task cause this happen, so i need trace the routine, like kgdb does. can you help me?

[Altera_Forum]

You may try a simple hello module first to verify your build enviroment. 

But I would perfer Linux enviroment to build uClinux.