Running kmemleak without sysfs support

[Catalin Marinas]

On Thu, 2011-01-20 at 12:33 +0000, Daniel Baluta wrote:
> On Thu, Jan 20, 2011 at 12:52 PM, Catalin Marinas
> <catalin.marinas at arm.com> wrote:
> > On Thu, 2011-01-20 at 10:41 +0000, Daniel Baluta wrote:
> >> Can I make any use of kmemcheck if I don't have sysfs
> >> kernel support enabled?
> >
> > Kmemleak can scan output the memory and report the number of leaked
> > objects but if you need to get additional information about the leaked
> > objects (like backtrace), you need debugfs enabled.
> 
> How is this reporting done?  It will appear in dmesg output?

Yes.

> > DEBUG_FS doesn't seem to be dependent on SYSFS but I never tried to
> > enable one without the other (you might be able to mount the DEBUG_FS
> > somewhere other than /sys/kernel/debug/).
> 
> I see. I was using 2.6.32 where it seems that debugfs depended on sysfs.
> Decoupling was done some time later [1].

Ah, I missed that. I'll change DEBUG_KMEMLEAK to always select DEBUG_FS
(currently only if SYSFS).

Thanks / multumesc :).

-- 
Catalin