Re: [PATCH] zsmalloc: move LRU update from zs_map_object() to zs_malloc()

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On Fri, May 05, 2023 at 12:14:01PM -0700, Andrew Morton wrote:
> On Fri,  5 May 2023 11:50:54 -0700 Nhat Pham <nphamcs@xxxxxxxxx> wrote:
> 
> > Under memory pressure, we sometimes observe the following crash:
> > 
> > [ 5694.832838] ------------[ cut here ]------------
> > [ 5694.842093] list_del corruption, ffff888014b6a448->next is LIST_POISON1 (dead000000000100)
> > 
> > ...
> > 
> > Suggested-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> > Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>
> > Signed-off-by: Nhat Pham <nphamcs@xxxxxxxxx>
> 
> Am I correct in believing that we should backport this fix into earlier
> kernels?
>
> And that a suitable Fixes: target is 64f768c6b32e ("zsmalloc: add a LRU
> to zs_pool to keep track of zspages in LRU order)"?

Yes, I agree. The tags in the mm-unstable commit look right to me.

Thanks




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