Re: console stuck

[Sergei Shtylyov <sshtylyov@ru.mvista.com>]

Hello.

Ashlesha Shintre wrote:
> Hi,

> I m very much confused as to why there is an infinite loop in the
> __request_resource function in the linux/kernel/resource.c file?

    It has 2 exit points (return statements).

> The serial console is getting stuck at this point.

    Then there's something very wrong with your resources...

>>for (;;) {
>>                tmp = *p;
>>                if (!tmp || tmp->start > end) {
>>                        new->sibling = tmp;
>>                        *p = new;
>>                        new->parent = root;
>>                        return NULL;
>>                }
>>                p = &tmp->sibling;
>>                if (tmp->end < start){
>>                        printk("tmp->end = %d\n",tmp->end);
>>                        printk("tmp->start = %d\n",tmp->start);
>>                        printk("*********!!!!!!!*******sibling?!!\n");
>>                        continue;
>>                }
>>                return tmp;
> 
> 
> Thanks and Regards,
> Ashlesha.

WBR, Sergei