[RFC 06/10] Reclaim memory from blocked kernel stacks
Sebastian Andrzej Siewior
bigeasy at linutronix.de
Fri Aug 28 08:58:42 PDT 2026
On 2026-08-28 16:25:52 [+0200], Peter Zijlstra wrote:
> Taking faults on the task-stack is not going to work. That fault will
> happen while you have locks held and IRQs disabled. Ideally, it'll
> happen when you're knee deep in the allocator.
>
> That fault will then again call the allocator to allocator your stack
> page, and...
indeed. So I do have a few ideas floating around but I leave it at it.
Sebastian
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