linux-kernel - Re: Intermittent inability to type in graphical Plymouth on UEFI VMs since kernel 6.9

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Date: Wed, 29 May 2024 16:04:25 +0200
From: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@...mhuis.info>
To: Genes Lists <lists@...ience.com>,
 Linux regressions mailing list <regressions@...ts.linux.dev>,
 Adam Williamson <awilliam@...hat.com>, linux-kernel@...r.kernel.org
Cc: jforbes@...hat.com, rstrode@...hat.com
Subject: Re: Intermittent inability to type in graphical Plymouth on UEFI VMs
 since kernel 6.9

On 29.05.24 15:35, Genes Lists wrote:
> On Wed, 2024-05-29 at 15:01 +0200, Linux regression tracking (Thorsten
> Leemhuis) wrote:
>>>
>>>     cpu i9-12900K  / Raptor Lake-P [Iris Xe Graphics]
>   Sorry, this should be:  13th Gen Intel(R) Core(TM) i7-1360P
>>>
>>
>> Does this happen every boot or only sometimes? Could you maybe upload
>> the full dmesg from a boot where things worked and one where only the
> For me it is every boot

Ahh, good to know. Would you be able to bisect the problem? That would
help tremendously!

https://docs.kernel.org/admin-guide/verify-bugs-and-bisect-regressions.html

> - the first few key strokes are accepted but no
> asterisks are displayed - and it works fine even though fewer asterisks
> are displayed than characters typed.

Strange.

> full dmesg attached.

Do you by chance also have a dmesg at hand for a boot where everything
worked normally?

Adam, do you maybe have dmesg output for the affected cases somewhere?

>> P.S.: let me add this to the regression tracking
>>
>> #regzbot report: /
>> #regzbot introduced: v6.8..v6.9
>> #regzbot summary: Intermittent inability to type in graphical
>> Plymouth
>> on UEFI VMs since kernel 6.9
> 
> Thank you.

np; but without a bisecting or at least locating the subsystem that is
causing this we might not get any further. :-/

Ciao, Thorsten