Re: [RCU] zombie task hung in synchronize_rcu_expedited
From: Oleg Nesterov
Date: Fri Jun 07 2024 - 02:27:28 EST
Thanks for this info,
On 06/07, Wei Fu wrote:
>
> All the kernels disable CONFIG_PREEMPT and PREEMPT_RCU.
Ah, this can explain both soft-lockup and synchronize_rcu() hang. If my theory
is correct.
Can you try the patch I sent?
Oleg.