Re: locking problems in iwlwifi? was Re: 6.16-rcX: crashing way too often on thinkpad X220

[Thomas Gleixner]

On Thu, Jul 24 2025 at 15:22, Waiman Long wrote:
> On 7/24/25 3:07 PM, Pavel Machek wrote:
>>> The lockdep warning just means that console_owner_lock is acquired both in
>>> softirq context and in task context with interrupt enabled. That can leads
>>> to deadlock. So the remedy is to always take console_owner_lock with
>>> interrupt disabled, i.e. with
>>> raw_spin_lock_irqsave/raw_spin_lock_irqrestore.
>> So you suspect problem is in the printk code?
>
> This lockdep problem is likely unrelated to the IRQ flag problem 
> reported in the original email as it shouldn't affect the IRQ flag.

Wrong you are ... :)