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Date:   Thu, 1 Jun 2023 08:40:47 +0900
From:   Nick Hastings <nicholaschastings@gmail.com>
To:     Mario Limonciello <mario.limonciello@amd.com>
Cc:     Salvatore Bonaccorso <carnil@debian.org>, 1036530@bugs.debian.org,
        "Rafael J. Wysocki" <rafael@kernel.org>,
        Len Brown <lenb@kernel.org>, linux-acpi@vger.kernel.org,
        linux-kernel@vger.kernel.org, regressions@lists.linux.dev
Subject: Re: Regression from "ACPI: OSI: Remove Linux-Dell-Video _OSI
 string"? (was: Re: Bug#1036530: linux-signed-amd64: Hard lock up of system)
Message-ID: <ZHfa/wQlaVCeUC22@xps>
References: <168471337231.1913606.15905047692536779158.reportbug@xps>
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 <ZHQhPcKUF76Kplwm@xps>
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Hi,

* Nick Hastings <nicholaschastings@gmail.com> [230530 16:01]:
> 
> * Mario Limonciello <mario.limonciello@amd.com> [230530 13:00]:
<snip>
> > As you're actually loading nouveau, can you please try nouveau.runpm=0 on
> > the kernel command line?
> 
> I'm not intentionally loading it. This machine also has intel graphics
> which is what I prefer. Checking my
> /etc/modprobe.d/blacklist-nvidia-nouveau.conf
> I see:
> 
> blacklist nvidia
> blacklist nvidia-drm
> blacklist nvidia-modeset
> blacklist nvidia-uvm
> blacklist ipmi_msghandler
> blacklist ipmi_devintf
> 
> So I thought I had blacklisted it but it seems I did not. Since I do not
> want to use it maybe it is better to check if the lock up occurs with
> nouveau blacklisted. I will try that now.

I blacklisted nouveau and booted into a 6.1 kernel:
% uname -a
Linux xps 6.1.0-9-amd64 #1 SMP PREEMPT_DYNAMIC Debian 6.1.27-1 (2023-05-08) x86_64 GNU/Linux

It has been running without problems for nearly two days now:
% uptime
 08:34:48 up 1 day, 16:22,  2 users,  load average: 1.33, 1.26, 1.27

Regards,

Nick.