2011/4/25 Bruno Prémont <bonbons@xxxxxxxxxxxxxxxxx>:
>
> Between 1-slabinfo and 2-slabinfo some values increased (a lot) while a few
> ones did decrease. Don't know which ones are RCU-affected and which ones are
> not.
It really sounds as if the tiny-rcu kthread somehow just stops
handling callbacks. The ones that keep increasing do seem to be all
rcu-free'd (but I didn't really check).
The thing is shown as running:
root 6 0.0 0.0 0 0 ? R 22:14 0:00 \_
[rcu_kthread]
but nothing seems to happen and the CPU time hasn't increased at all.
I dunno. Makes no sense to me, but yeah, I'm definitely blaming
tiny-rcu. Paul, any ideas?
Linus
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