Re: PANIC: mm: memcg/slab: percpu_ref_put_many - Unable to handle kernel paging request at virtual address ffff80096d78f000

[Michal Hocko]

On Wed 01-07-20 13:24:54, Naresh Kamboju wrote:
> While running LTP mm test suite on arm64 Juno device the kernel panic
> noticed on linux-next 20200630 tag.

Can you try to bisect? The new memcg slab allocator series sounds like a
potential candidate. One of the patches has changed the memcg reference
counting which is showing up on the stack. This might be a side effect
of something else of course but bisection would tell us more.

Thanks

-- 
Michal Hocko
SUSE Labs