Re: console stuck

[Sergei Shtylyov <sshtylyov@xxxxxxxxxxxxx>]

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