Hi all,

One of the kernel maintainers is wondering if the nouveau driver is
completely broken with 64K pages ?

So my question is simply: is anyone out there using a ppc64 system
with nouveau on a default linux-image-powerpc64 debian system (64K
page). I am only interested in ppc64be system only.

Thanks for your time,

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Mathieu Malaterre wrote on 07th of October 2021, 11:05 CEST:

Hi all,

One of the kernel maintainers is wondering if the nouveau driver is completely broken with 64K pages ?

So my question is simply: is anyone out there using a ppc64 system
with nouveau on a default linux-image-powerpc64 debian system (64K
page). I am only interested in ppc64be system only.

Thanks for your time,

Last I tried to setup my Power Mac G5 (PowerMac11,2) I was using
nouveau. The driver worked, but that was 1+ year ago. I hit a massive
problem and, at the time, stopped due to lack of time. I was going to
revive the Power Mac this summer, but again couldn't find the time. I
will however try again next year.

I didn't run Debian on it, but Gentoo. I noticed a problem with newer
kernel versions (was it >5.4?), but couldn't investigate any further. Sorry.

One problem I had was that switching to/from 64k pages is impossible
when one uses btrfs (which I want to use), because the page size
determines the data structures, making it impossible to access the
filesystem when changing it later-on.

If I remember correctly, nouveau always had issues with 64k pages...
(And I couldn't try it with 4k pages due to the btrfs issue...)


Linux User #330250

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I have a related question: instead of us breaking what is working by updating the kernel regularly, why don't we find a good working kernel version and move on only when we can match that in terms of functionality? Is there some "requirement" to
always feature the latest kernel?

Thomas Grzybowski

Sent with ProtonMail Secure Email.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Thursday, October 7th, 2021 at 10:25 AM, Linux User #330250 <linuxuser330250@gmx.net> wrote:

Mathieu Malaterre wrote on 07th of October 2021, 11:05 CEST:

Hi all,

One of the kernel maintainers is wondering if the nouveau driver is

completely broken with 64K pages ?

So my question is simply: is anyone out there using a ppc64 system

with nouveau on a default linux-image-powerpc64 debian system (64K

page). I am only interested in ppc64be system only.

Thanks for your time,

Last I tried to setup my Power Mac G5 (PowerMac11,2) I was using

nouveau. The driver worked, but that was 1+ year ago. I hit a massive

problem and, at the time, stopped due to lack of time. I was going to

revive the Power Mac this summer, but again couldn't find the time. I

will however try again next year.

I didn't run Debian on it, but Gentoo. I noticed a problem with newer

kernel versions (was it >5.4?), but couldn't investigate any further. Sorry.

One problem I had was that switching to/from 64k pages is impossible

when one uses btrfs (which I want to use), because the page size

determines the data structures, making it impossible to access the

filesystem when changing it later-on.

If I remember correctly, nouveau always had issues with 64k pages...

(And I couldn't try it with 4k pages due to the btrfs issue...)

Linux User #330250

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Tom Grzybowski wrote on the 7th of October 2021, 23:41 CEST:

I have a related question: instead of us breaking what is working by updating the kernel regularly, why don't we find a good working kernel version and move on only when we can match that in terms of functionality? Is there some "requirement" to

always feature the latest kernel?

Well, for Debian unstable PPC64BE, this could be an option.

I found it worthwhile to update the kernels as they come along because
of additional features that come with new versions, e.g. btrfs gets
better sometimes (like async discard, which came in kernel 5.6), and to
get not only additional features but also valuable fixes, enhancements
and speed-ups (e.g. https://phoronix.com/scan.php?page=news_item&px=Linux-5.10.8-Released) I
kind of needed to upgrade...

The second thought that comes to my mind (which is long past at this
point) would be to detect introduced incompatibilities early-on. E.g.
since an earlier 5.x kernel still worked with nouveau and a later one
didn't, helping out with disecting the relevant kernel patches would
have been only possible when updating the kernel...

Yes, I also do wonder who still uses PPC64BE. I have two Power Macs G5
that I started to put Gentoo on. I wanted to get a working desktop Linux
on them.
Instead I found that KDE Plasma Desktop wasn't available and/or tested
on PPC64BE as well as problems with nouveau, so it is my experience that
it takes a lot of time to continue such a hobby project...

Linux User #330250

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Hi Thomas!

On 10/7/21 23:41, Tom Grzybowski wrote:

I have a related question: instead of us breaking what is working
by updating the kernel regularly, why don't we find a good working
kernel version and move on only when we can match that in terms of functionality? Is there some "requirement" to always feature the
latest kernel?

That's unfortunately not possible at the moment as Debian Ports is a pure unstable distribution which means we're rolling release.

There are plans to add releases to Debian Ports but that would require
setting up an instance of Debian's release management software called
Britney [1] which is something someone from the release team needs
to do.

Adrian

[1] https://release.debian.org/doc/britney/

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

--- SoupGate-Win32 v1.05
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On Thu, Oct 7, 2021 at 5:41 PM Tom Grzybowski <tomgrzybow@protonmail.com> wrote:

I have a related question: instead of us breaking what is working by updating the kernel regularly, why don't we find a good working kernel version and move on only when we can match that in terms of functionality? Is there some "requirement" to

always feature the latest kernel?

Regarding the "find a good working kernel", it may be a good idea to
invest in a LTS kernel. Currently that is 5.4 and 5.10. 5.4 is
supported until December 2025, 5.10 is supported until December 2026.

Jeff

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Adrian,

John Paul Adrian Glaubitz wrote on 10/8/2021 2:24 AM:

Hi Thomas!

On 10/7/21 23:41, Tom Grzybowski wrote:

I have a related question: instead of us breaking what is working
by updating the kernel regularly, why don't we find a good working
kernel version and move on only when we can match that in terms of
functionality? Is there some "requirement" to always feature the
latest kernel?

That's unfortunately not possible at the moment as Debian Ports is a pure unstable distribution which means we're rolling release.

Can't you still be rolling-release, but with an LTS kernel?

There are plans to add releases to Debian Ports but that would require setting up an instance of Debian's release management software called
Britney [1] which is something someone from the release team needs
to do.

Perhaps there would be fewer barriers if someone were to prepare a
"spin" of BE-ppc/ppc64 that is outside of the official Debian Ports. It
seems like it would be possible to run our own instance of Britney2: https://release.debian.org/doc/britney/setting-up-britney.html

...but then the question would become "what else needs to be modified to
make use of it"..

Adrian

[1] https://release.debian.org/doc/britney/

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On 10/8/21 17:55, Alex Perez wrote:

That's unfortunately not possible at the moment as Debian Ports is a pure
unstable distribution which means we're rolling release.

Can't you still be rolling-release, but with an LTS kernel?

I think there is a misunderstanding how Debian Ports works. Debian Ports normally
not supposed to host any source packages itself. Instead, the buildds just build
all the packages that are uploaded to unstable and experimental.

We can upload custom packages to the "unreleased" suite and even a renamed kernel
packages called "linux-lts", but someone would have to maintain that and that's a lot of work.

There are plans to add releases to Debian Ports but that would require
setting up an instance of Debian's release management software called
Britney [1] which is something someone from the release team needs
to do.

Perhaps there would be fewer barriers if someone were to prepare a "spin" of BE-ppc/ppc64 that is outside of the official Debian Ports. It seems like it would be possible to run our own instance of Britney2:

https://release.debian.org/doc/britney/setting-up-britney.html

I'd prefer Britney for Debian Ports to be maintained by the same people who already maintain the Britney instance for the Debian release architectures.

But before we can have our own instance of Britney, we need a proper instance of DAK - the Debian Archive Kit. We are currently using Mini-DAK for Debian Ports which has lots of limitations which cause issues like this one [1].

However, we cannot use DAK for Debian Ports at the moment, because DAK doesn't support the "unreleased" suite at the moment. So, someone would have to add support for "unreleased" to DAK first. Once that has happened, we can switch from DAK to Mini-DAK, then get Britney running for Debian Ports.

Once these two things have happened, we can have testing and stable releases
in Debian Ports.

I assume the above task for adding support for "unreleased" to DAK could be something for Google Summer of Code.

Adrian

[1] https://lists.debian.org/debian-sparc/2017/12/msg00060.html

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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On 10/8/21 11:13, Jeffrey Walton wrote:

On Thu, Oct 7, 2021 at 5:41 PM Tom Grzybowski <tomgrzybow@protonmail.com> wrote:

I have a related question: instead of us breaking what is working by updating

the kernel regularly, why don't we find a good working kernel version and move on
only when we can match that in terms of functionality? Is there some "requirement"
to always feature the latest kernel?

Regarding the "find a good working kernel", it may be a good idea to
invest in a LTS kernel. Currently that is 5.4 and 5.10. 5.4 is
supported until December 2025, 5.10 is supported until December 2026.

Well, you can always just pick the kernel from stable, manually build it for powerpc and/or ppc64 and you've got an LTS kernel.

But again, this is not an automatic process.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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I like the idea of this group adopting an LTS kernel, and fleshing-out that one as much as we can. And then moving on to the next, if we believe it offers more. After-all, these efforts are not all about the kernel itself, but really more about what we
can run reliably in total.

Thomas Grzybowski

Sent with ProtonMail Secure Email.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Friday, October 8th, 2021 at 5:40 PM, John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> wrote:

On 10/8/21 11:13, Jeffrey Walton wrote:

On Thu, Oct 7, 2021 at 5:41 PM Tom Grzybowski tomgrzybow@protonmail.com wrote:

I have a related question: instead of us breaking what is working by updating

the kernel regularly, why don't we find a good working kernel version and move on

only when we can match that in terms of functionality? Is there some "requirement"

to always feature the latest kernel?

Regarding the "find a good working kernel", it may be a good idea to

invest in a LTS kernel. Currently that is 5.4 and 5.10. 5.4 is

supported until December 2025, 5.10 is supported until December 2026.

Well, you can always just pick the kernel from stable, manually build it for

powerpc and/or ppc64 and you've got an LTS kernel.

But again, this is not an automatic process.

Adrian

-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

.''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org` . `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de` - GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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Hello Tom!

On 10/9/21 02:10, Tom Grzybowski wrote:

I like the idea of this group adopting an LTS kernel, and fleshing-out that one as much as we can. And then moving on to the next, if we believe it offers
more. After-all, these efforts are not all about the kernel itself, but really
more about what we can run reliably in total.

Someone would still have to do the work.

Adrian

--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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Hi! Work? Of course! I would be happy to test, and maybe even try to fix a few things. Sadly I am not a C programmer.

Thomas Grzybowski

Sent with ProtonMail Secure Email.

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Saturday, October 9th, 2021 at 8:04 AM, John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> wrote:

Hello Tom!

On 10/9/21 02:10, Tom Grzybowski wrote:

I like the idea of this group adopting an LTS kernel, and fleshing-out that

one as much as we can. And then moving on to the next, if we believe it offers

more. After-all, these efforts are not all about the kernel itself, but really

more about what we can run reliably in total.

Someone would still have to do the work.

Adrian

---------------------------------------------------

.''`. John Paul Adrian Glaubitz : :' : Debian Developer - glaubitz@debian.org` . `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de` - GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913

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Hi Stephen !

On Fri, Oct 8, 2021 at 8:34 AM Stephen Harker <sjharker@netspace.net.au> wrote:

Hi Mathieu,

One of the kernel maintainers is wondering if the nouveau driver is completely broken with 64K pages ?

So my question is simply: is anyone out there using a ppc64 system
with nouveau on a default linux-image-powerpc64 debian system (64K
page). I am only interested in ppc64be system only.

I have debian running as below. I am emailing from my old Fedora 28 partition as I had not got around to enabling email from Debian. I
have had no problems with X11 using a GeForce 6600 LE (until recently
I was using a 7600GTX 512 and, despite not fixing some boot settings,
it is working with the 6600). The glxinfo below may be partly
incorrect due to those settings.

uname -a output:

Linux xxxx 5.10.0-8-powerpc64 #1 SMP Debian 5.10.46-4 (2021-08-03) ppc64 GNU/Linux

cat /proc/cpuinf:o

processor : 0
cpu : PPC970MP, altivec supported
clock : 2000.000000MHz
revision : 1.1 (pvr 0044 0101)

processor : 1
cpu : PPC970MP, altivec supported
clock : 2000.000000MHz
revision : 1.1 (pvr 0044 0101)

timebase : 33333333
platform : PowerMac
model : PowerMac11,2
machine : PowerMac11,2
motherboard : PowerMac11,2 MacRISC4 Power Macintosh
detected as : 337 (PowerMac G5 Dual Core)
pmac flags : 00000000
L2 cache : 1024K unified
pmac-generation : NewWorld

glxinfo (partly cut for space):

name of display: :0
display: :0 screen: 0
direct rendering: Yes
server glx vendor string: SGI
server glx version string: 1.4
server glx extensions:
GLX_ARB_create_context, GLX_ARB_create_context_no_error,
GLX_ARB_create_context_profile, GLX_ARB_fbconfig_float,
GLX_ARB_framebuffer_sRGB, GLX_ARB_multisample,
GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_fbconfig_packed_float, GLX_EXT_framebuffer_sRGB,
GLX_EXT_import_context, GLX_EXT_libglvnd, GLX_EXT_no_config_context,
GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_INTEL_swap_event, GLX_MESA_copy_sub_buffer, GLX_OML_swap_method,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGIX_visual_select_group, GLX_SGI_make_current_read,
GLX_SGI_swap_control
client glx vendor string: Mesa Project and SGI
client glx version string: 1.4
client glx extensions:
GLX_ARB_context_flush_control, GLX_ARB_create_context,
GLX_ARB_create_context_no_error, GLX_ARB_create_context_profile,
GLX_ARB_create_context_robustness, GLX_ARB_fbconfig_float,
GLX_ARB_framebuffer_sRGB, GLX_ARB_get_proc_address, GLX_ARB_multisample,
GLX_ATI_pixel_format_float, GLX_EXT_buffer_age,
GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_fbconfig_packed_float, GLX_EXT_framebuffer_sRGB,
GLX_EXT_import_context, GLX_EXT_no_config_context, GLX_EXT_swap_control,
GLX_EXT_swap_control_tear, GLX_EXT_texture_from_pixmap,
GLX_EXT_visual_info, GLX_EXT_visual_rating, GLX_INTEL_swap_event,
GLX_MESA_copy_sub_buffer, GLX_MESA_multithread_makecurrent,
GLX_MESA_query_renderer, GLX_MESA_swap_control, GLX_NV_float_buffer,
GLX_OML_swap_method, GLX_OML_sync_control, GLX_SGIS_multisample,
GLX_SGIX_fbconfig, GLX_SGIX_pbuffer, GLX_SGIX_visual_select_group,
GLX_SGI_make_current_read, GLX_SGI_swap_control, GLX_SGI_video_sync
GLX version: 1.4
GLX extensions:
GLX_ARB_create_context, GLX_ARB_create_context_no_error,
GLX_ARB_create_context_profile, GLX_ARB_fbconfig_float,
GLX_ARB_framebuffer_sRGB, GLX_ARB_get_proc_address, GLX_ARB_multisample,
GLX_EXT_create_context_es2_profile, GLX_EXT_create_context_es_profile,
GLX_EXT_fbconfig_packed_float, GLX_EXT_framebuffer_sRGB,
GLX_EXT_import_context, GLX_EXT_no_config_context, GLX_EXT_swap_control,
GLX_EXT_texture_from_pixmap, GLX_EXT_visual_info, GLX_EXT_visual_rating,
GLX_INTEL_swap_event, GLX_MESA_copy_sub_buffer, GLX_MESA_query_renderer,
GLX_MESA_swap_control, GLX_OML_swap_method, GLX_OML_sync_control,
GLX_SGIS_multisample, GLX_SGIX_fbconfig, GLX_SGIX_pbuffer,
GLX_SGIX_visual_select_group, GLX_SGI_make_current_read,
GLX_SGI_swap_control, GLX_SGI_video_sync
Extended renderer info (GLX_MESA_query_renderer):
Vendor: nouveau (0x10de)
Device: NV43 (0x142)
Version: 21.2.3
Accelerated: yes
Video memory: 108MB
Unified memory: no
Preferred profile: compat (0x2)
Max core profile version: 0.0
Max compat profile version: 2.1
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 2.0
OpenGL vendor string: nouveau
OpenGL renderer string: NV43
OpenGL version string: 2.1 Mesa 21.2.3
OpenGL shading language version string: 1.20
OpenGL extensions:
GL_AMD_shader_trinary_minmax, GL_ANGLE_texture_compression_dxt3,
GL_ANGLE_texture_compression_dxt5, GL_APPLE_packed_pixels,
GL_ARB_ES2_compatibility, GL_ARB_buffer_storage,
GL_ARB_clear_buffer_object, GL_ARB_compressed_texture_pixel_storage,
GL_ARB_copy_buffer, GL_ARB_debug_output, GL_ARB_depth_clamp,
GL_ARB_depth_texture, GL_ARB_draw_buffers,
GL_ARB_draw_elements_base_vertex, GL_ARB_explicit_attrib_location,
GL_ARB_explicit_uniform_location, GL_ARB_fragment_coord_conventions,
GL_ARB_fragment_program, GL_ARB_fragment_program_shadow,
GL_ARB_fragment_shader, GL_ARB_get_program_binary,
GL_ARB_get_texture_sub_image, GL_ARB_half_float_pixel,
GL_ARB_half_float_vertex, GL_ARB_internalformat_query,
GL_ARB_internalformat_query2, GL_ARB_invalidate_subdata,
GL_ARB_map_buffer_alignment, GL_ARB_map_buffer_range, GL_ARB_multi_bind,
GL_ARB_multisample, GL_ARB_multitexture, GL_ARB_occlusion_query,
GL_ARB_occlusion_query2, GL_ARB_parallel_shader_compile,
GL_ARB_pixel_buffer_object, GL_ARB_point_parameters, GL_ARB_point_sprite,
GL_ARB_program_interface_query, GL_ARB_provoking_vertex,
GL_ARB_robustness, GL_ARB_sampler_objects, GL_ARB_separate_shader_objects,
GL_ARB_shader_objects, GL_ARB_shading_language_100,
GL_ARB_shading_language_include, GL_ARB_shadow, GL_ARB_sync,
GL_ARB_texture_border_clamp, GL_ARB_texture_compression,
GL_ARB_texture_cube_map, GL_ARB_texture_env_add,
GL_ARB_texture_env_combine, GL_ARB_texture_env_crossbar,
GL_ARB_texture_env_dot3, GL_ARB_texture_filter_anisotropic,
GL_ARB_texture_mirror_clamp_to_edge, GL_ARB_texture_mirrored_repeat,
GL_ARB_texture_non_power_of_two, GL_ARB_texture_rectangle,
GL_ARB_texture_storage, GL_ARB_texture_swizzle, GL_ARB_timer_query,
GL_ARB_transpose_matrix, GL_ARB_vertex_array_object,
GL_ARB_vertex_attrib_binding, GL_ARB_vertex_buffer_object,
GL_ARB_vertex_program, GL_ARB_vertex_shader, GL_ARB_window_pos,
GL_ATI_blend_equation_separate, GL_ATI_draw_buffers,
GL_ATI_fragment_shader, GL_ATI_separate_stencil,
GL_ATI_texture_env_combine3, GL_ATI_texture_mirror_once,
GL_EXT_EGL_image_storage, GL_EXT_EGL_sync, GL_EXT_abgr, GL_EXT_bgra,
GL_EXT_blend_color, GL_EXT_blend_equation_separate,
GL_EXT_blend_func_separate, GL_EXT_blend_minmax, GL_EXT_blend_subtract,
GL_EXT_compiled_vertex_array, GL_EXT_copy_texture,
GL_EXT_depth_bounds_test, GL_EXT_direct_state_access,
GL_EXT_draw_range_elements, GL_EXT_fog_coord, GL_EXT_framebuffer_blit,
GL_EXT_framebuffer_object, GL_EXT_gpu_program_parameters,
GL_EXT_multi_draw_arrays, GL_EXT_packed_depth_stencil,
GL_EXT_packed_pixels, GL_EXT_pixel_buffer_object, GL_EXT_point_parameters,
GL_EXT_provoking_vertex, GL_EXT_rescale_normal, GL_EXT_secondary_color,
GL_EXT_separate_specular_color, GL_EXT_shadow_funcs,
GL_EXT_stencil_two_side, GL_EXT_stencil_wrap, GL_EXT_subtexture,
GL_EXT_texture, GL_EXT_texture3D, GL_EXT_texture_compression_dxt1,
GL_EXT_texture_compression_s3tc, GL_EXT_texture_cube_map,
GL_EXT_texture_edge_clamp, GL_EXT_texture_env_add,
GL_EXT_texture_env_combine, GL_EXT_texture_env_dot3,
GL_EXT_texture_filter_anisotropic, GL_EXT_texture_lod_bias,
GL_EXT_texture_mirror_clamp, GL_EXT_texture_object,
GL_EXT_texture_rectangle, GL_EXT_texture_sRGB, GL_EXT_texture_sRGB_decode,
GL_EXT_texture_swizzle, GL_EXT_timer_query, GL_EXT_vertex_array,
GL_IBM_multimode_draw_arrays, GL_IBM_rasterpos_clip,
GL_IBM_texture_mirrored_repeat, GL_INGR_blend_func_separate,
GL_KHR_context_flush_control, GL_KHR_debug, GL_KHR_no_error,
GL_KHR_parallel_shader_compile, GL_MESA_pack_invert, GL_MESA_window_pos,
GL_NV_blend_square, GL_NV_conditional_render, GL_NV_copy_image,
GL_NV_depth_clamp, GL_NV_fog_distance, GL_NV_half_float,
GL_NV_light_max_exponent, GL_NV_packed_depth_stencil,
GL_NV_primitive_restart, GL_NV_texgen_reflection,
GL_NV_texture_env_combine4, GL_NV_texture_rectangle, GL_OES_EGL_image,
GL_OES_read_format, GL_S3_s3tc, GL_SGIS_generate_mipmap,
GL_SGIS_texture_border_clamp, GL_SGIS_texture_edge_clamp,
GL_SGIS_texture_lod, GL_SUN_multi_draw_arrays

OpenGL ES profile version string: OpenGL ES 2.0 Mesa 21.2.3
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 1.0.16 OpenGL ES profile extensions:
GL_ANGLE_pack_reverse_row_order, GL_ANGLE_texture_compression_dxt3,
GL_ANGLE_texture_compression_dxt5, GL_APPLE_texture_max_level,
GL_EXT_blend_minmax, GL_EXT_depth_clamp, GL_EXT_discard_framebuffer,
GL_EXT_disjoint_timer_query, GL_EXT_draw_buffers,
GL_EXT_draw_elements_base_vertex, GL_EXT_frag_depth,
GL_EXT_map_buffer_range, GL_EXT_multi_draw_arrays,
GL_EXT_occlusion_query_boolean, GL_EXT_read_format_bgra,
GL_EXT_separate_shader_objects, GL_EXT_texture_border_clamp,
GL_EXT_texture_compression_dxt1, GL_EXT_texture_compression_s3tc,
GL_EXT_texture_compression_s3tc_srgb, GL_EXT_texture_filter_anisotropic,
GL_EXT_texture_format_BGRA8888, GL_EXT_unpack_subimage,
GL_KHR_context_flush_control, GL_KHR_debug, GL_KHR_no_error,
GL_KHR_parallel_shader_compile, GL_MESA_bgra, GL_NV_conditional_render,
GL_NV_draw_buffers, GL_NV_fbo_color_attachments,
GL_NV_pixel_buffer_object, GL_NV_read_buffer, GL_NV_read_depth,
GL_NV_read_depth_stencil, GL_NV_read_stencil, GL_OES_EGL_image,
GL_OES_EGL_image_external, GL_OES_EGL_sync, GL_OES_depth24,
GL_OES_depth_texture, GL_OES_draw_elements_base_vertex,
GL_OES_element_index_uint, GL_OES_fbo_render_mipmap,
GL_OES_get_program_binary, GL_OES_mapbuffer, GL_OES_packed_depth_stencil,
GL_OES_required_internalformat, GL_OES_rgb8_rgba8, GL_OES_stencil8,
GL_OES_surfaceless_context, GL_OES_texture_3D,
GL_OES_texture_border_clamp, GL_OES_texture_npot,
GL_OES_vertex_array_object, GL_OES_vertex_half_float

Output of getconf PAGESIZE: 65536

cat /proc/interrupts:
CPU0 CPU1
16: 2765 9448 MPIC 1 0 Level keywest i2c
17: 295 940 MPIC 1 3 Level nvkm
18: 91006 269249 MPIC 1 10 Level sata_svw[0001:03:0c.0]
25: 32 93 MPIC 1 11 Edge i2sbus: i2s-a (tx)
26: 15 53 MPIC 1 12 Edge i2sbus: i2s-a (rx)
27: 38 85 MPIC 1 27 Level keywest i2c
28: 0 0 MPIC 1 28 Level i2sbus: i2s-a (control)
29: 0 0 MPIC 1 15 Edge i2sbus: i2s-c (tx)
30: 0 0 MPIC 1 30 Level i2sbus: i2s-c (control)
31: 0 0 MPIC 1 16 Edge i2sbus: i2s-c (rx)
32: 31770 92697 MPIC-U3MSI 8 Edge enP1p5s4f0
33: 0 2 MPIC-U3MSI 9 Edge enP1p5s4f1
38: 1102 3347 MPIC 1 38 Level pata-pci-macio[0001:03:0d.0]
39: 6 8 MPIC 1 39 Level firewire_ohci
48: 0 0 MPIC 1 48 Edge SMU message
53: 20547 61870 MPIC 1 53 Edge SMU doorbell
62: 137 424 MPIC 1 62 Level sata_mv[0001:09:00.0]
70: 7299 7809 MPIC 1 70 Level ehci_hcd:usb1, ohci_hcd:usb2, ohci_hcd:usb3
75: 0 0 MPIC 1 75 Edge lineout-detect
79: 0 0 MPIC 1 79 Edge headphone-detect
251: 1429696 1272778 MPIC 1 251 Edge ipi call function
252: 2575 2258 MPIC 1 252 Edge ipi reschedule
253: 0 0 MPIC 1 253 Edge ipi tick-broadcast
254: 0 0 MPIC 1 254 Edge nmi ipi
LOC: 1209488 1319850 Local timer interrupts for timer event device BCT: 0 0 Broadcast timer interrupts for timer event device
LOC: 896 883 Local timer interrupts for others
SPU: 6939 6495 Spurious interrupts
PMI: 0 0 Performance monitoring interrupts
MCE: 0 0 Machine check exceptions
HMI: 0 0 Hypervisor Maintenance Interrupts
NMI: 0 0 System Reset interrupts
WDG: 24946 26888 Watchdog soft-NMI interrupts

Thanks for your anwer.

[Trying to get your answer archived in debian-powerpc]

--- SoupGate-Win32 v1.05
* Origin: fsxNet Usenet Gateway (21:1/5)

Hi Mathieu,

On 2021-10-07, Mathieu Malaterre <malat@debian.org> wrote:

One of the kernel maintainers is wondering if the nouveau driver is completely broken with 64K pages ?

So my question is simply: is anyone out there using a ppc64 system
with nouveau on a default linux-image-powerpc64 debian system (64K
page). I am only interested in ppc64be system only.

My main desktop machine at home is a PowerMac G5 (Dual PPC970,
PowerMac7,2), so it gets lots of daily use for audio, video, and web
browsing. The graphic card is:

0000:f0:10.0 VGA compatible controller: NVIDIA Corporation NV34 [GeForce FX 5200 Ultra] (rev a1)

I am not using the Debian kernel, but rather the latest kernel.org
mainline kernel (currently 5.15.0-rc5). Perhaps my feedback is useful
anyway.

Until now I have been using 4K pages with ppc64, but today I recompiled
for 64K pages. With 4K pages I have not encountered any graphic problems (except for a possible memory leak I recently reported [0]).

After switching to 64K pages, things seem to run well at first. I could
watch videos, browse the web, and perform typical X.org
activity. However, when I closed my PDF viewer (evince), the X
background changed to a bizarre pattern that also included the PDF
screen (even though I had already closed the PDF viewer). Oddly enough,
about a minute later, the background magically restored itself. In the
kernel logs I see lots of error messages (posted at the end of this
email).

With 4K pages I do not see any error messages, even after multiple days
of continuous heavy graphic use. I don't mind running test kernels on my machine if it will help.

John Ogness

[0] https://lore.kernel.org/nouveau/87v92j18eu.fsf@jogness.linutronix.de

[ 362.972226][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.972372][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.973009][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.973128][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.973640][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.973727][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.974219][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.974287][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.974786][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.974854][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.975400][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.975484][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.976046][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.976134][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.976615][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.976680][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.978301][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.978393][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.978928][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.979015][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.979643][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.979739][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.980339][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.980424][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.981027][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.981101][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.981623][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.981722][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.982275][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.982348][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.982913][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.983012][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.985425][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.985501][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.987009][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.987091][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.988275][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.988353][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.988916][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.988987][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.989491][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 362.989563][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 362.990110][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 766.908567][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 766.908666][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 848.319990][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 848.320079][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 900.062080][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 900.062202][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 901.077211][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 901.077309][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1225.255442][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1225.255577][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1225.259013][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1225.259117][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1225.260942][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1225.261012][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1272.206081][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1272.206163][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1272.535110][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1272.535198][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.063029][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.063153][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.064106][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.064160][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.065920][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.066041][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.066747][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.066829][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.067345][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.067451][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.067994][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.068081][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.068857][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.068972][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1296.069489][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1296.069571][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1308.554373][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1308.554523][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1308.602575][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1308.602685][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1509.325859][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1509.325958][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1509.328606][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1509.328680][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1509.348794][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1509.348908][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1509.369438][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1509.369571][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1509.371517][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1509.371580][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1509.409892][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1509.410008][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.093615][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.093724][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.133521][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.133636][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.201265][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.201370][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.206793][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.206896][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.208450][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.208575][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.210308][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.210431][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.230349][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.230483][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.346757][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.346879][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.907820][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.907929][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1516.911862][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1516.911945][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1517.017061][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1517.017174][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1517.037773][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1517.037893][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1517.057922][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1517.058052][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1517.077752][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1517.077858][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1517.086518][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1517.086640][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1517.096924][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1517.097037][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1520.786720][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1520.786834][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1520.830859][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1520.830965][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1520.898788][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1520.898917][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1524.470845][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1524.470929][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1524.492550][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1524.492676][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1524.513795][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1524.513923][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1557.304916][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1557.305048][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1562.269938][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1562.270072][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1562.271453][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1562.271586][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1562.272675][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1562.272763][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1564.175555][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1564.175685][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1564.209650][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1564.209779][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1564.249532][ C0] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1564.249680][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1573.256344][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1573.256437][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1573.276748][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000
[ 1573.276828][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0318 data 00010000
[ 1573.297366][ C1] nouveau 0000:f0:10.0: gr: intr 00100000 [ERROR] nsource 00000002 [DATA_ERROR] nstatus 02000000 [BAD_ARGUMENT] ch 0 [DRM] subc 4 class 0039 mthd 0314 data 00010000

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John,

On Mon, Oct 11, 2021 at 10:34 PM John Ogness <powerpc@ogness.net> wrote:

Hi Mathieu,

On 2021-10-07, Mathieu Malaterre <malat@debian.org> wrote:

One of the kernel maintainers is wondering if the nouveau driver is completely broken with 64K pages ?

So my question is simply: is anyone out there using a ppc64 system
with nouveau on a default linux-image-powerpc64 debian system (64K
page). I am only interested in ppc64be system only.

My main desktop machine at home is a PowerMac G5 (Dual PPC970,
PowerMac7,2), so it gets lots of daily use for audio, video, and web browsing. The graphic card is:

0000:f0:10.0 VGA compatible controller: NVIDIA Corporation NV34 [GeForce FX 5200 Ultra] (rev a1)

Thanks for your report ! In case you have not seen it before, this is known as:

* https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=790690

It is unlikely that the root issue will ever be solved, so we need to
provide a 4K page kernel for the affected users. As you've seen from
another user report, it appears that nouveau may work under certain
work load:

* https://lists.debian.org/debian-powerpc/2021/10/msg00068.html

-M

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