Re: [PATCH V14] mm/debug: Add tests validating architecture page table helpers
From: Qian Cai
Date: Wed Mar 04 2020 - 06:29:27 EST
> On Mar 4, 2020, at 1:49 AM, Christophe Leroy <christophe.leroy@xxxxxx> wrote:
>
> AFAIU, you are not taking an interrupt here. You are stuck in the pte_update(), most likely due to nested locks. Try with LOCKDEP ?
Not exactly sure what did you mean here, but the kernel has all lockdep enabled and did not flag anything here.