Re: [PATCH 00/11] mm: debug: formatting memory management structs

[Sasha Levin]

On 05/14/2015 04:24 PM, Andrew Morton wrote:
> On Thu, 14 May 2015 13:10:03 -0400 Sasha Levin <sasha.levin@xxxxxxxxxx> wrote:
> 
>> > This patch series adds knowledge about various memory management structures
>> > to the standard print functions.
>> > 
>> > In essence, it allows us to easily print those structures:
>> > 
>> > 	printk("%pZp %pZm %pZv", page, mm, vma);
>> > 
>> > This allows us to customize output when hitting bugs even further, thus
>> > we introduce VM_BUG() which allows printing anything when hitting a bug
>> > rather than just a single piece of information.
>> > 
>> > This also means we can get rid of VM_BUG_ON_* since they're now nothing
>> > more than a format string.
> A good set of example output would help people understand this proposal.

That would be the equivalent of doing:

	dump_page(page);
	dump_mm(mm);
	dump_vma(vma);

I'll add a few example usages in.


Thanks,
Sasha
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/