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Maniphest T83488

Grease pencil object outline shader fails to compile on radeonsi
Confirmed, NormalPublicBUG
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Description

System Information
Operating system: arch linux
Graphics card: RX 460 (radeonsi)
llvm 11.0.0-4, and master compiled today
mesa 20.2.3-1, and master compiled today

Blender Version
Broken: 2.83.9, 2.91.0, 2.92 daily build
Worked: 2.80

Short description of error
selecting a grease pencil object tanks performance and the outline fails to render.
I assume it's the grease pencil outline shader, as it does not render, and other object selection outlines seem to render fine with no slowdown.
I don't know for sure if it's an issue with blender, could also be an LLVM/mesa bug.

blender 2.80 downloaded from blender.org does not have the issue, I'm assuming it's bundled with it's own older LLVM.

these are the relevant lines from startup:

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr1 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part

and then this prints at least once per frame with a grease pencil object selected in object mode:

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader

Exact steps for others to reproduce the error

  1. start blender (e.g. git-master) in a termimal

$ blender-tip

Read prefs: ... .config/blender/2.92/config/userpref.blend
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr1 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
  1. delete cube
  2. add grease pencil → monkey
Info: Deleted 1 object(s)

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
....

Related Objects

Event Timeline

retrotails created this task.Dec 7 2020, 5:10 AM
Robert Guetzkow (rjg) changed the task status from Needs Triage to Needs Information from User.Dec 7 2020, 10:12 AM
Robert Guetzkow (rjg) added a subscriber: Robert Guetzkow (rjg).

This appears to be the same issue as in T82461. You mention that the official build of 2.80 works fine. Are the versions of 2.83.9, 2.91.0 and 2.92.0 that don't work also official builds, have you build them yourself or are they a package provided by Arch?

Robert Guetzkow (rjg) added a project: EEVEE & Viewport.Dec 7 2020, 10:15 AM
Robert Guetzkow (rjg) updated the task description. (Show Details)
retrotails added a comment.EditedDec 7 2020, 10:53 AM

2.83.9 and 2.92.0 were official builds, 2.91.0 provided by arch.
worth mentioning, I have no issues importing numpy.
also, this issue does not seem to appear on newer AMD cards, at least my vega 56.

Robert Guetzkow (rjg) changed the task status from Needs Information from User to Needs Triage.Dec 8 2020, 12:00 AM
Martin Capitanio (capnm) added a subscriber: Martin Capitanio (capnm).Dec 8 2020, 6:37 PM
Martin Capitanio (capnm) awarded a token.Dec 8 2020, 6:44 PM
Martin Capitanio (capnm) added a comment.EditedDec 8 2020, 7:01 PM

these are the relevant lines from startup:
...
and then this prints at least once per frame with a grease pencil object selected in object mode

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader

I can confirm the same terminal output with older AMD cards, the current Mesa 20.3.0 release / LLVM 11.0.0
(Ubuntu 20.04, kisak-mesa PPA)

Running Blender with: AMD_DEBUG=mono blender avoids at least the massive spamming in the output and prints the error only a few times.
(See https://gitlab.freedesktop.org/mesa/mesa/blob/master/src/gallium/drivers/radeonsi/si_pipe.c#L74)

found bundled python: /opt/blender/blender-2.91.0-linux64/2.91/python

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr2 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec

LLVM failed to compile shader
EE ../src/gallium/drivers/radeonsi/si_state_shaders.c:2091 si_build_shader_variant - Failed to build shader variant (type=0)

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec

LLVM failed to compile shader
EE ../src/gallium/drivers/radeonsi/si_state_shaders.c:2091 si_build_shader_variant - Failed to build shader variant (type=0)
Robert Guetzkow (rjg) mentioned this in T83587: Blender crashes when baking rigid and cloth physics.Dec 9 2020, 1:35 PM
retrotails added a comment.Dec 10 2020, 12:00 AM
In T83488#1071290, @Martin Capitanio (capnm) wrote:

Running Blender with: AMD_DEBUG=mono blender avoids at least the massive spamming in the output and prints the error only a few times.

thank you for this, the outline still doesn't render, but the performance becomes usable again.

this error also showing up in T83587 is interesting as they report having a much newer GPU, so I went back to my vega 56 system and updated it (it has not been updated in a while) and it now has this issue. so it's likely all recent AMD cards on linux.

Robert Guetzkow (rjg) mentioned this in T83608: Linux OpenCL backend doesn't work; "Illegal instruction detected: VOP* instruction violates constant bus restriction".Dec 10 2020, 11:46 AM
Martin Capitanio (capnm) mentioned this in T83720: Selecting Grease Pencil object slows down the Blender (object mode).Dec 14 2020, 2:56 PM
Germano Cavalcante (mano-wii) merged a task: T83720: Selecting Grease Pencil object slows down the Blender (object mode).Dec 15 2020, 3:16 PM
Germano Cavalcante (mano-wii) added a subscriber: Ali Najafi (shylon).
Germano Cavalcante (mano-wii) added a subscriber: Germano Cavalcante (mano-wii).Dec 15 2020, 3:25 PM

I notice that this report is missing the steps for others to reproduce the error.
Although the description already indicates what the steps are, it is important to be specific so that we can test the problem on other hardware.

Martin Capitanio (capnm) added a comment.Dec 15 2020, 4:30 PM

I notice that this report is missing the steps for others to reproduce the error.

  1. start blender (e.g. git-master) in a termimal

$ blender-tip

Read prefs: ... .config/blender/2.92/config/userpref.blend
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr1 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part
  1. delete cube
  2. add grease pencil → monkey
Info: Deleted 1 object(s)

LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr3 = V_CNDMASK_B32_e32 32768, killed $vgpr3, implicit killed $vcc, implicit $exec
....
Germano Cavalcante (mano-wii) updated the task description. (Show Details)Dec 17 2020, 12:03 AM
Jin Lim (mechaic) mentioned this in T84768: Moving, rotating and scaling of grease pencil object is slow in reponse.Jan 20 2021, 5:31 AM
Robert Guetzkow (rjg) merged a task: T84768: Moving, rotating and scaling of grease pencil object is slow in reponse.Jan 20 2021, 9:28 AM
Robert Guetzkow (rjg) added a subscriber: Jin Lim (mechaic).
Robert Guetzkow (rjg) mentioned this in T84902: Object selected outline not visible.Jan 21 2021, 2:27 PM
Hardnax EMP (HARDNAX) added a subscriber: Hardnax EMP (HARDNAX).Jan 26 2021, 2:06 PM

same error in T84998

Blender Version
Broken: version: 2.93.0 Alpha, branch: master, commit date: 2021-01-26 11:41, hash: rB74633c0456b6

Jeroen Bakker (jbakker) added a subscriber: Jeroen Bakker (jbakker).Jan 26 2021, 2:23 PM

Might be polaris only. I saw the messages last week (when debugging polaris issues), but not on my current configuration.

Current platform:
Operating system: Linux-5.4.0-62-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: AMD Radeon RX 5700 (NAVI10, DRM 3.35.0, 5.4.0-62-generic, LLVM 11.0.0) X.Org 4.6 (Core Profile) Mesa 20.2.6

Will see if I can replace the GPU.

Jeroen Bakker (jbakker) added a comment.EditedJan 26 2021, 2:39 PM

Might be polaris only. I saw the messages last week (when debugging polaris issues), but not on my current configuration.

Not able to reproduce on:

Operating system: Linux-5.4.0-62-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: AMD Radeon RX 5700 (NAVI10, DRM 3.35.0, 5.4.0-62-generic, LLVM 11.0.0) X.Org 4.6 (Core Profile) Mesa 20.2.6

Able to reproduce on:

Operating system: Linux-5.4.0-62-generic-x86_64-with-debian-bullseye-sid 64 Bits
Graphics card: AMD Radeon (TM) RX 480 Graphics (POLARIS10, DRM 3.35.0, 5.4.0-62-generic, LLVM 11.0.0) X.Org 4.6 (Core Profile) Mesa 20.2.6

So seems to be related to polaris.

This feels like a driver bug so not sure what our influence is to solve this. I am going to point down the shader that triggers these issues and see if I can work around the possible driver bug.

OVERLAY_shader_outline_prepass_gpencil_1197
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr4 = V_CNDMASK_B32_e32 32768, killed $vgpr5, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part

OVERLAY_shader_wireframe_1556
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr2 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
radeonsi: can't compile a main shader part

GPENCIL_shader_antialiasing_117
LLVM triggered Diagnostic Handler: Illegal instruction detected: VOP* instruction violates constant bus restriction
renamable $vgpr2 = V_CNDMASK_B32_e32 32768, killed $vgpr2, implicit killed $vcc, implicit $exec
LLVM failed to compile shader
Germano Cavalcante (mano-wii) merged a task: T84998: Blender Grease Pencil hangs with "LLVM failed to compile shader".Jan 26 2021, 6:44 PM
Germano Cavalcante (mano-wii) added a subscriber: Max W. (MaWalla).
Robert Guetzkow (rjg) merged a task: T84902: Object selected outline not visible.Thu, Jan 28, 3:06 PM
Robert Guetzkow (rjg) added a subscriber: Larry Nestor (larryn46).
Ali Najafi (shylon) added a comment.Tue, Feb 2, 1:21 PM

May I ask please set this task to high priority, it is so annoying to work, thanks

Hardnax EMP (HARDNAX) awarded a token.Tue, Feb 2, 3:19 PM
retrotails added a comment.Wed, Feb 3, 1:44 AM
In T83488#1101068, @Jeroen Bakker (jbakker) wrote:

Might be polaris only. I saw the messages last week (when debugging polaris issues), but not on my current configuration.

it does at least also affect vega, including desktop cards and APUs.

In T83488#1105729, @Ali Najafi (shylon) wrote:

May I ask please set this task to high priority, it is so annoying to work, thanks

setting the environment variable "AMD_DEBUG=mono blender" at least makes performance not tank, though the outline still doesn't render.

Germano Cavalcante (mano-wii) changed the task status from Needs Triage to Confirmed.Wed, Feb 3, 9:39 PM
Germano Cavalcante (mano-wii) changed the subtype of this task from "Report" to "Bug".
Germano Cavalcante (mano-wii) mentioned this in T85366: Grease Pencil stroke count increases lag when selected in an object interaction mode that isn't Draw.Fri, Feb 5, 9:56 PM
Ali Najafi (shylon) added a comment.EditedFri, Feb 12, 8:30 AM

it seems the latest update from Mesa fixed this, I don't know but I reinstalled and updated Manjaro and there is no problem with Blender 2.83.12 and 2.91.2.

Martin Capitanio (capnm) added a comment.Fri, Feb 12, 10:23 AM

Blender 2.91.2 in Ubuntu 20.04.2 LTS
+ e.g. :
renderer: 'AMD Radeon HD 7700 Series (VERDE, DRM 3.38.0, 5.8.0-43-generic, LLVM 11.0.1)'
vendor: 'AMD'
version: '4.6 (Core Profile) Mesa 20.3.4 - kisak-mesa PPA'

Is still broken. I guess it could be a bug in LLVM ?

Martin Capitanio (capnm) added a comment.Fri, Feb 12, 11:05 AM

Should be fixed in rc of llvm 12. Equivalent Mesa bug report:
https://gitlab.freedesktop.org/mesa/mesa/-/issues/4107

Ali Najafi (shylon) added a comment.Sat, Feb 13, 6:14 PM
In T83488#1111020, @Martin Capitanio (capnm) wrote:

Blender 2.91.2 in Ubuntu 20.04.2 LTS
+ e.g. :
renderer: 'AMD Radeon HD 7700 Series (VERDE, DRM 3.38.0, 5.8.0-43-generic, LLVM 11.0.1)'
vendor: 'AMD'
version: '4.6 (Core Profile) Mesa 20.3.4 - kisak-mesa PPA'

Is still broken. I guess it could be a bug in LLVM ?

strange that I have the same LLVM and Mesa but after installing Manjaro minimal 20.2.1 and updating the problem is gone.

Germano Cavalcante (mano-wii) merged a task: T85366: Grease Pencil stroke count increases lag when selected in an object interaction mode that isn't Draw.Fri, Feb 19, 11:12 PM
Germano Cavalcante (mano-wii) added a subscriber: Daphne Spurs (quinnquills).