Re: [PATCH tty v11 1/2] serial: 8250: Switch to nbcon console, take 2

[John Ogness]

Hi Jon,

On 2026-08-20, Jon Hunter <jonathanh@xxxxxxxxxx> wrote:
>> 1. I wonder if adding a WARN() with v5 of this patchset
>>     would make v5 fail as well.
>
> Thanks for the analysis. I don't think that WARN occurred back in V5 
> because this is something I believe is fairly recent and we need to fix. 
> Anyway, for testing, I simply removed the warning to see if this has an 
> impact and it does. So you are right, this appears to be the cause of 
> the issue.

Instead of the WARN, could you insert a pr_err() call? I would like to
remove the EMERGENCY printing from the picture if we can. If it hangs
due to NORMAL console printing from that suspend function, I expect it
is irqwork related.

John