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([2600:4040:5c62:8200:4d3e:bd5a:7e0a:133a]) by smtp.gmail.com with ESMTPSA id x10-20020a0ce24a000000b0063659410b04sm2470697qvl.107.2023.07.07.14.54.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 07 Jul 2023 14:54:12 -0700 (PDT) Message-ID: <79af2eab7409b75f5a2386fbd82c339111d6deab.camel@redhat.com> Subject: Re: Regression from "ACPI: OSI: Remove Linux-Dell-Video _OSI string"? (was: Re: Bug#1036530: linux-signed-amd64: Hard lock up of system) From: Lyude Paul To: "Limonciello, Mario" , Nick Hastings , Lukas Wunner , kherbst@redhat.com Cc: Salvatore Bonaccorso , 1036530@bugs.debian.org, "Rafael J. Wysocki" , Len Brown , linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org, regressions@lists.linux.dev Date: Fri, 07 Jul 2023 17:54:11 -0400 In-Reply-To: References: <168471337231.1913606.15905047692536779158.reportbug@xps> <09e24386-de63-e9e9-9e7f-5d04bad62d83@amd.com> <8537d965-ddf4-7f45-6459-d5acf520376e@amd.com> Organization: Red Hat Inc. Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.48.3 (3.48.3-1.fc38) MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org On Thu, 2023-06-01 at 11:18 -0500, Limonciello, Mario wrote: > +Lyude, Lukas, Karol >=20 > On 5/31/2023 6:40 PM, Nick Hastings wrote: > > Hi, > >=20 > > * Nick Hastings [230530 16:01]: > > > * Mario Limonciello [230530 13:00]: > > > > > > As you're actually loading nouveau, can you please try nouveau.runp= m=3D0 on > > > > the kernel command line? > > > I'm not intentionally loading it. This machine also has intel graphic= s > > > which is what I prefer. Checking my > > > /etc/modprobe.d/blacklist-nvidia-nouveau.conf > > > I see: > > >=20 > > > blacklist nvidia > > > blacklist nvidia-drm > > > blacklist nvidia-modeset > > > blacklist nvidia-uvm > > > blacklist ipmi_msghandler > > > blacklist ipmi_devintf > > >=20 > > > 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 > >=20 > > 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 > >=20 > > Regards, > >=20 > > Nick. >=20 > Thanks, that makes a lot more sense now. >=20 > Nick, Can you please test if nouveau works with runtime PM in the > latest 6.4-rc? >=20 > If it works in 6.4-rc, there are probably nouveau commits that need > to be backported to 6.1 LTS. >=20 > If it's still broken in 6.4-rc, I believe you should file a bug: >=20 > https://gitlab.freedesktop.org/drm/nouveau/ >=20 >=20 > Lyude, Lukas, Karol >=20 > This thread is in relation to this commit: >=20 > 24867516f06d ("ACPI: OSI: Remove Linux-Dell-Video _OSI string") >=20 > Nick has found that runtime PM is *not* working for nouveau. >=20 > If you recall we did 24867516f06d because 5775b843a619 was > supposed to have fixed it. Gotcha, I guess keep me updated since it seems like things -might- be worki= ng from what I gathered here? Happy to look further if they find that 6.4-rc i= s broken though >=20 --=20 Cheers, Lyude Paul (she/her) Software Engineer at Red Hat