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

Hi John,

On 20/08/2026 13:40, John Ogness wrote:
> Hi Jon,
> 
> On 2026-08-20, Jon Hunter <[email protected]> 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.
I replaced the WARN with a pr_err() and I see the same issue.

Thanks
Jon

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nvpublic