Re: Linux regressions report for mainline [2022-05-09] (was: Linux 5.18-rc6)

From: Hans de Goede <hdegoede@redhat.com>
To: Linus Torvalds <torvalds@linux-foundation.org>,
	"Regzbot (on behalf of Thorsten Leemhuis)" 
	<regressions@leemhuis.info>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Jani Nikula <jani.nikula@linux.intel.com>,
	Matthew Auld <matthew.auld@intel.com>,
	Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	Linux regressions mailing list <regressions@lists.linux.dev>
Subject: Re: Linux regressions report for mainline [2022-05-09] (was: Linux 5.18-rc6)
Date: Mon, 9 May 2022 21:04:07 +0200	[thread overview]
Message-ID: <54664f6a-b046-1330-e794-cb533e942a94@redhat.com> (raw)
In-Reply-To: <CAHk-=wj0gHsG6iw3D8ufptm9a_dvTSqrrOFY9WopObbYbyuwnA@mail.gmail.com>

Hi,

On 5/9/22 19:20, Linus Torvalds wrote:
> On Mon, May 9, 2022 at 3:47 AM Regzbot (on behalf of Thorsten
> Leemhuis) <regressions@leemhuis.info> wrote:
>>
>> Hi Linus! Here's a quick compilation of open reports about regressions in
>> 5.18-rc that I'm currently aware of; most of the reports are quite
>> recent and there afaics is nothing that looks particularly worrisome.
> 
> Well, the Intel GPU issue seems likely to cause problems for lots of people:
> 
>> [ *NEW* ] drm/i915: BYT rendering broken due to "Remove short-term pins from execbuf, v6"
>> -----------------------------------------------------------------------------------------
>> https://linux-regtracking.leemhuis.info/regzbot/regression/1366349e-f96a-3f2c-3094-f5cd1a6fa31f@redhat.com/
>> https://lore.kernel.org/dri-devel/1366349e-f96a-3f2c-3094-f5cd1a6fa31f@redhat.com/
>>
>> By Hans de Goede; 0 days ago; 2 activities, latest 0 days ago.
>> Introduced in b5cfe6f7a6e1 (v5.18-rc1)
>>
>> Recent activities from: Tvrtko Ursulin (1), Hans de Goede (1)
> 
> Although it looks possible that it mainly affects old chipsets (ie the
> two reports are for a Bay Trail chip and a Core 2 Duo chip - I have no
> idea how they compare).
> 
> That probably means there are a lot of machines out there, but likely
> not the kind that most kernel developers will be testing, so not a ton
> of reports until it hits distro kernels etc.
> 
> It looks like Maarten is already involved.

This is being tracked here:
https://gitlab.freedesktop.org/drm/intel/-/issues/5806

I've just tested a patch from Maarten which fixes things for me,
so hopefully we can get this resolved soon.

Regards,

Hans