[Devel] lockdep_assert_held is triggering with the shrinker counter

[Denis Kirjanov]

On 1/9/18, Kirill Tkhai <ktkhai at virtuozzo.com> wrote:
> Hi, Denis,
>
> Feel free to CC commit author in the future ;)
>
> On 06.01.2018 21:44, Denis Kirjanov wrote:
>> Hi guys,
>>
>> the following commit triggers the splat in dmesg:
>>
>>
>> The commit is pushed to "branch-rh7-3.10.0-514.26.1.vz7.35.x-ovz" and
>> will appear at https://src.openvz.org/scm/ovz/vzkernel.git
>> after rh7-3.10.0-514.26.1.vz7.35.5
>> ------>
>> commit 6fd774dbf6fd05eca8cfa192753bf35dac694368
>> Author: Kirill Tkhai <ktkhai at virtuozzo.com>
>> Date:   Thu Aug 31 18:25:20 2017 +0300
>>
>> your commit added rcu read side enter instead of spinlock but looks
>> like you forgot to update the assert statement in  the
>> list_lru_from_memcg_idx
>
> There is no assert statement in list_lru_from_memcg_idx() anymore.
> I've removed it in:
>
> 5db3da0bf711 "mm: Make list_lru_node::memcg_lrus RCU protected",
> one commit before 6fd774dbf6fd.
>

ah, I see. Missed it.
Thx!

> Do you use modified vzkernel? I assume you use a custom kernel
> with your own modifications, and you don't have ported the commit
> I pointed above.
>
> Kirill
>