Hi Bjorn and others,
On 03/28/2013 01:27 AM, Bjorn Helgaas wrote:
>> - printk(KERN_ERR "run of slot in ranges\n");
>> > + pr_err("%s: run out of slot in ranges\n",
>> > + __func__);
>> > }
>> > range[j].end = start;
>> > continue;
> So now the user might see:
>
> subtract_range: run out of slot in ranges
>
> What is the user supposed to do when he sees that? If he happens to
> mention it on LKML, what are we going to do about it? If he attaches
> the complete dmesg log, is there enough information to do something?
>
> IMHO, that message is still totally useless.
>
Yes, we need to issue some useful message.
How about dump_stack() there so that we can find some clues more since
subtract_range() is called mtrr_bp_init path and pci relative path, then
it may help to instruct us to do something ;-) ?
thanks,
linfeng
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