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SubjectRe: memcg causes crashes in list_lru_add
On Mon 29-04-19 11:25:48, Jiri Slaby wrote:
> On 29. 04. 19, 10:16, Jiri Slaby wrote:
[...]
> > Any idea how to fix this mess?
>
> memcg_update_all_list_lrus should take care about resizing the array. So
> it looks like list_lru_from_memcg_idx returns a stale pointer to
> list_lru_from_kmem and then to list_lru_add. Still investigating.

I am traveling and on a conference this week. Please open a bug and if
this affects upstream kernel then report upstream as well. Cc linux-mm
and memcg maintainers. This doesn't ring bells immediately. I do not
remember any large changes recently.
--
Michal Hocko
SUSE Labs

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