Re: WARNING: kmalloc bug in input_mt_init_slots

From: Dmitry Vyukov
Date: Thu Sep 27 2018 - 11:29:35 EST


On Thu, Sep 27, 2018 at 5:22 PM, Christopher Lameter <cl@xxxxxxxxx> wrote:
> On Thu, 27 Sep 2018, Dmitry Vyukov wrote:
>
>> On Thu, Sep 27, 2018 at 4:16 PM, Christopher Lameter <cl@xxxxxxxxx> wrote:
>> > On Thu, 27 Sep 2018, Dmitry Vyukov wrote:
>> >
>> >> On Tue, Sep 25, 2018 at 4:04 PM, Christopher Lameter <cl@xxxxxxxxx> wrote:
>> >> > On Tue, 25 Sep 2018, Dmitry Vyukov wrote:
>> >> >
>> >> >> Assuming that the size is large enough to fail in all allocators, is
>> >> >> this warning still useful? How? Should we remove it?
>> >> >
>> >> > Remove it. It does not make sense because we check earlier if possible
>> >> > without the warn.
>> >>
>> >> Mailed "mm: don't warn about large allocations for slab" to remove the warning.
>> >>
>> >
>> > Hoe it arrives here at some point.
>>
>> It's here:
>> https://lore.kernel.org/patchwork/patch/992660/
>>
>
> Please post on the mailing list

It is on the mailing lists:
https://lkml.org/lkml/2018/9/27/802

> and NAK to the patch. Testing against
> KMALLOC_MAX_CACHE_SIZE is not ok.

Why?