Re: [microblaze-uclinux] BUG: scheduling while atomic: (Kernel 2.6)

[John Williams <jwilliams@xxxxxxxxxxxxxx>]

Hi Chun Yeow,

Yeoh Chun Yeow wrote:

> After patching the entry.S, I don't see thje BUG: scheduling problem in 
> my compiled kernel (without CONFIG_PREEMPT). 

Great, that's one bug down, 2 to go :)

However, the ping results
> contain "ping: recvfrom: Invalid argument". Any ideas?

Working on it right now - relates to restarting of system calls.

[snip]

> If I build my kernel with CONFIG_PREEMPT, the following errors occur 
> whenever I ping from my system:
>
> # ping 172.16.6.174 <http://172.16.6.174>
> PING 172.16.6.174 <http://172.16.6.174> ( 172.16.6.174 
> <http://172.16.6.174>): 56 data bytes
> 64 bytes from 172.16.6.174 <http://172.16.6.174>: icmp_seq=0 ttl=64 
> time=12.0 ms
> ping: recvfrom: Invalid argument
> 64BUG: scheduling while atomic: ping/0x00000001/51

This looks like a different bug - CONFIG_PREEMPT hasn't had a lot of 
testing.  Will add it to the queue!

Thanks

John
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