Re: Reading `/sys/kernel/debug/kmemleak` takes 3 s and content not shown

[Christophe Leroy]

Le 26/03/2019 Ã 13:49, Paul Menzel a ÃcritÂ:
> Dear Linux folks,
>
>
> On 19.02.19 10:44, Paul Menzel wrote:
>
> > On a the IBM S822LC (8335-GTA) with Ubuntu 18.10, and Linux 5.0-rc5+
> > accessing `/sys/kernel/debug/kmemleak` takes a long time. According to
> > strace it takes three seconds.
> >
> > $ dmesg | grep leak
> > [ÂÂÂ 4.407957] kmemleak: Kernel memory leak detector initialized
> > [ÂÂÂ 4.407959] kmemleak: Automatic memory scanning thread started
> > [745989.625624] kmemleak: 1 new suspected memory leaks (see 
> > /sys/kernel/debug/kmemleak)
> > [1002619.951902] kmemleak: 1 new suspected memory leaks (see 
> > /sys/kernel/debug/kmemleak)
> > ```
> >
> > Unfortunately, the leaks supposedly stored in that file are not shown
> > either.
>
> The problem is still present with Linux 5.0. Do you have an idea, how to 
> fix this?

Have you identified a previous version that works properly ?

If so, have you been able to bisect the problem ?

Christophe