Bug#962003: Linux kernel 5.6: [drm:i915_gem_gtt_finish_pages [i915]] ERROR Failed to wait for idle; VT'd may hang

To: 962003@bugs.debian.org
Subject: Bug#962003: Linux kernel 5.6: [drm:i915_gem_gtt_finish_pages [i915]] *ERROR* Failed to wait for idle; VT'd may hang
From: Stefan Pietsch <stefan+debian@shellforce.org>
Date: Sun, 7 Jun 2020 08:48:53 +0000
Message-id: <[🔎] 72d155ab-667b-373f-ed65-3622c30ea8db@shellforce.org>
Reply-to: Stefan Pietsch <stefan+debian@shellforce.org>, 962003@bugs.debian.org
In-reply-to: <[🔎] 1c1e7ac6-9fc1-4e6d-c3c4-e6f17e152266@shellforce.org>
References: <[🔎] 1c1e7ac6-9fc1-4e6d-c3c4-e6f17e152266@shellforce.org> <[🔎] 1c1e7ac6-9fc1-4e6d-c3c4-e6f17e152266@shellforce.org>

On 2020-06-01 20:44, Stefan Pietsch wrote:

Affected is at least linux-image-5.6.0-1-amd64 (5.6.7-1) andlinux-image-5.6.0-2-amd64 (5.6.14-1).


This also affects 5.5.0-rc5-amd64.

(https://snapshot.debian.org/archive/debian/20200106T211159Z/pool/main/l/linux/)

The kernel boot option "intel_iommu=igfx_off" prevents the error message.

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References:
- Bug#962003: Linux kernel 5.6: [drm:i915_gem_gtt_finish_pages [i915]] *ERROR* Failed to wait for idle; VT'd may hang
  - From: Stefan Pietsch <stefan+debian@shellforce.org>

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Bug#962003: Linux kernel 5.6: [drm:i915_gem_gtt_finish_pages [i915]] *ERROR* Failed to wait for idle; VT'd may hang

Bug#962003: Linux kernel 5.6: [drm:i915_gem_gtt_finish_pages [i915]] ERROR Failed to wait for idle; VT'd may hang