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Date: Wed, 29 May 2024 15:01:08 +0200
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Reply-To: Linux regressions mailing list <regressions@lists.linux.dev>
Subject: Re: Intermittent inability to type in graphical Plymouth on UEFI VMs
 since kernel 6.9
To: Genes Lists <lists@sapience.com>, Adam Williamson <awilliam@redhat.com>,
 linux-kernel@vger.kernel.org
Cc: jforbes@redhat.com, rstrode@redhat.com,
 Linux kernel regressions list <regressions@lists.linux.dev>
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 <8fee69cc8fdd67fd265790c0fa287cb9566c2349.camel@sapience.com>
From: "Linux regression tracking (Thorsten Leemhuis)"
 <regressions@leemhuis.info>
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[CCing the regression list, as it should be in the loop for regressions:
https://docs.kernel.org/admin-guide/reporting-regressions.html]

Side note: a bug report just to the LKML (e.g. w/o any subsystem lists
or maintainers) is unlikely to gain traction; I considered adding the
DRM folks, but lets try one thing first:

On 27.05.24 17:18, Genes Lists wrote:
> On Fri, 2024-05-24 at 09:08 -0700, Adam Williamson wrote:
>> Hi, folks. Please CC me on replies, I'm not subscribed to the list.
>> The 
>> downstream bug report for this is 
>> https://bugzilla.redhat.com/show_bug.cgi?id=2274770 .
> 
> 1) FYI : I see same thing booting dell xps 13 9320 laptop (no VM) on
> mainline 6.10-rc1 (started sometime early 6.9 as far as I recall)
> 
>     bios 2.11.0
> 
>     cpu i9-12900K  / Raptor Lake-P [Iris Xe Graphics]
>     Boot using systemd-boot
> 
> dmesg (trimmed) attached. 

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
text UI came up? It's just a shot in the dark, but maybe that will tell
us where the root of the problem might be.

> 2) Note there is a crash later in boot (in mei_csi_probe). Assume this
> crash is a separate issue.

Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat)
--
Everything you wanna know about Linux kernel regression tracking:
https://linux-regtracking.leemhuis.info/about/#tldr
If I did something stupid, please tell me, as explained on that page.

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