[Bug 111455] DMAR: [INTR-REMAP] Blocked an interrupt request due to source-id verification failure

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111455

--- Comment #1 from Nikolay Kichukov <nikolay at oldum.net> ---
Not much seems to have been captured by running the kernel with:
'drm.debug=0x1e log_buf_len=4M'

...snip...
Aug 25 19:03:44 localhost kernel: [283823.907593][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 00000000c841325d,
Aug 25 19:03:44 localhost kernel: [283823.922605][ T8596]
[drm:amdgpu_display_crtc_page_flip_target [amdgpu]] crtc:0[00000000cc62eb17],
pflip_stat:AMDGPU_FLIP_PENDING, work: 0000000019340169,
Aug 25 19:03:44 localhost kernel: [283823.922640][ T8596]
[drm:amdgpu_display_crtc_page_flip_target [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_PENDING, work: 00000000b4d9949b,
Aug 25 19:03:44 localhost kernel: [283823.924283][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:0[00000000cc62eb17],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 0000000019340169,
Aug 25 19:03:44 localhost kernel: [283823.924316][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 00000000b4d9949b,
Aug 25 19:03:44 localhost kernel: [283823.939256][ T8596]
[drm:amdgpu_display_crtc_page_flip_target [amdgpu]] crtc:0[00000000cc62eb17],
pflip_stat:AMDGPU_FLIP_PENDING, work: 00000000a8e63b00,
Aug 25 19:03:44 localhost kernel: [283823.939292][ T8596]
[drm:amdgpu_display_crtc_page_flip_target [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_PENDING, work: 00000000b1a1f198,
Aug 25 19:03:44 localhost kernel: [283823.940944][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:0[00000000cc62eb17],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 00000000a8e63b00,
Aug 25 19:03:44 localhost kernel: [283823.940975][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 00000000b1a1f198,
Aug 25 19:03:44 localhost kernel: [283823.955946][ T8596]
[drm:amdgpu_display_crtc_page_flip_target [amdgpu]] crtc:0[00000000cc62eb17],
pflip_stat:AMDGPU_FLIP_PENDING, work: 00000000614cee44,
Aug 25 19:03:44 localhost kernel: [283823.955982][ T8596]
[drm:amdgpu_display_crtc_page_flip_target [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_PENDING, work: 00000000df74fb67,
Aug 25 19:03:44 localhost kernel: [283823.957643][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:0[00000000cc62eb17],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 00000000614cee44,
Aug 25 19:03:44 localhost kernel: [283823.957673][T15386]
[drm:amdgpu_display_flip_work_func [amdgpu]] crtc:1[00000000c905a8f5],
pflip_stat:AMDGPU_FLIP_SUBMITTED, work: 00000000df74fb67,
Aug 25 19:03:45 localhost kernel: [283824.053148][    C0] DMAR: DRHD: handling
fault status reg 2
Aug 25 19:03:45 localhost kernel: [283824.053153][    C0] DMAR: [INTR-REMAP]
Request device [00:00.0] fault index 26 [fault reason 38] Blocked an interrupt
request due to source-id verification failure
...end...

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