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From: Chris Wilson <chris@chris-wilson.co.uk>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Hans de Goede <hdegoede@redhat.com>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	stable@vger.kernel.org
Subject: Re: [Intel-gfx] [5.10.y regression] i915 clear-residuals mitigation is causing gfx issues
Date: Mon, 08 Feb 2021 23:27:38 +0000	[thread overview]
Message-ID: <161282685855.9448.10484374241892252440@build.alporthouse.com> (raw)
In-Reply-To: <fe6040b5-72a0-9882-439e-ea7fc0b3935d@redhat.com>

Quoting Hans de Goede (2021-02-08 20:38:58)
> Hi All,
> 
> We (Fedora) have been receiving reports from multiple users about gfx issues / glitches
> stating with 5.10.9. All reporters are users of Ivy Bridge / Haswell iGPUs and all
> reporters report that adding i915.mitigations=off to the cmdline fixes things, see:

I tried to reproduce this on the w/e on hsw-gt1, to no avail; and piglit
did not report any differences with and without mitigations. I have yet
to test other platforms. So I don't yet have an alternative. Though note
that v5.11 and v5.12 will behave similarly, so we need to urgently find
a fix for Linus's tree anyway.
-Chris

WARNING: multiple messages have this Message-ID (diff)
From: Chris Wilson <chris@chris-wilson.co.uk>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Hans de Goede <hdegoede@redhat.com>,
	intel-gfx <intel-gfx@lists.freedesktop.org>,
	stable@vger.kernel.org
Subject: Re: [Intel-gfx] [5.10.y regression] i915 clear-residuals mitigation is causing gfx issues
Date: Mon, 08 Feb 2021 23:27:38 +0000	[thread overview]
Message-ID: <161282685855.9448.10484374241892252440@build.alporthouse.com> (raw)
In-Reply-To: <fe6040b5-72a0-9882-439e-ea7fc0b3935d@redhat.com>

Quoting Hans de Goede (2021-02-08 20:38:58)
> Hi All,
> 
> We (Fedora) have been receiving reports from multiple users about gfx issues / glitches
> stating with 5.10.9. All reporters are users of Ivy Bridge / Haswell iGPUs and all
> reporters report that adding i915.mitigations=off to the cmdline fixes things, see:

I tried to reproduce this on the w/e on hsw-gt1, to no avail; and piglit
did not report any differences with and without mitigations. I have yet
to test other platforms. So I don't yet have an alternative. Though note
that v5.11 and v5.12 will behave similarly, so we need to urgently find
a fix for Linus's tree anyway.
-Chris
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx

  reply	other threads:[~2021-02-08 23:28 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-02-08 20:38 [5.10.y regression] i915 clear-residuals mitigation is causing gfx issues Hans de Goede
2021-02-08 20:38 ` [Intel-gfx] " Hans de Goede
2021-02-08 23:27 ` Chris Wilson [this message]
2021-02-08 23:27   ` Chris Wilson
2021-02-09 11:46   ` Hans de Goede
2021-02-09 11:46     ` Hans de Goede
2021-02-09 11:55     ` Chris Wilson
2021-02-09 11:55       ` Chris Wilson
2021-02-09 23:07     ` Chris Wilson
2021-02-09 23:07       ` Chris Wilson
2021-02-10 10:37       ` Hans de Goede
2021-02-10 10:37         ` Hans de Goede
2021-02-10 12:48         ` Chris Wilson
2021-02-10 12:48           ` Chris Wilson
2021-02-11 10:36           ` Hans de Goede
2021-02-11 10:36             ` Hans de Goede
2021-02-11 10:49             ` Chris Wilson
2021-02-11 10:49               ` Chris Wilson
2021-02-11 12:26               ` Hans de Goede
2021-02-11 12:26                 ` Hans de Goede
2021-02-14 16:00                 ` Hans de Goede
2021-02-14 16:00                   ` Hans de Goede
2021-02-15 14:26                   ` Greg Kroah-Hartman
2021-02-15 14:26                     ` Greg Kroah-Hartman
2021-03-01 14:10                     ` Greg Kroah-Hartman
2021-03-01 14:10                       ` Greg Kroah-Hartman
2021-02-18 14:04                   ` Hans de Goede
2021-02-18 14:04                     ` Hans de Goede
2021-02-25 11:52               ` Hans de Goede
2021-02-25 11:52                 ` Hans de Goede
2021-02-11  0:00         ` Chris Wilson
2021-02-11  0:00           ` Chris Wilson
2021-02-09 16:43   ` Hans de Goede
2021-02-09 16:43     ` Hans de Goede

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