Nouveau - Jul 2014 - [Bug 81485] New: dmesg spam on startup

https://bugs.freedesktop.org/show_bug.cgi?id=81485

          Priority: medium
            Bug ID: 81485
          Assignee: nouveau at lists.freedesktop.org
           Summary: dmesg spam on startup
        QA Contact: xorg-team at lists.x.org
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: fry.kun at gmail.com
          Hardware: Other
            Status: NEW
           Version: unspecified
         Component: Driver/nouveau
           Product: xorg

Sager NP8268-S (Clevo P150SM-A) with dual graphics
lspci -nn
00:02.0 VGA compatible controller [0300]: Intel Corporation 4th Gen Core
Processor Integrated Graphics Controller [8086:0416] (rev 06)
01:00.0 VGA compatible controller [0300]: NVIDIA Corporation GK104M [GeForce
GTX 870M] [10de:1199] (rev a1)

Had to blacklist nouveau module since it was spamming dmesg from startup:


Jul 17 05:52:48 mireille kernel: [   18.417467] nouveau E[  
PFIFO][0000:01:00.0] PBDMA1: ch 0 [DRM] subc 0 mthd 0x0000 data 0x00000000
Jul 17 05:52:48 mireille kernel: [   18.417477] nouveau E[  
PFIFO][0000:01:00.0] PBDMA1: GPPTR
Jul 17 05:52:48 mireille kernel: [   18.417479] nouveau E[  
PFIFO][0000:01:00.0] PBDMA1: ch 0 [DRM] subc 0 mthd 0x0000 data 0x00000000
Jul 17 05:52:48 mireille kernel: [   18.417489] nouveau E[  
PFIFO][0000:01:00.0] PBDMA1: GPPTR


Using Fedora 20 with default Xorg and Intel driver 2.99.911 (from git)

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Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|dmesg spam on startup       |[NVE4] dmesg spam on
                   |                            |startup

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Is this something new, or has it always been the case (as far as you know)? Can
you try 3.16-rc5 and see if this still happens there? Assuming it does, can you
provide a full dmesg log from 3.16? [Sounds like the dmesg spam is infinite, so
just grab a little of it...]

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--- Comment #2 from Konstantin Svist <fry.kun at gmail.com> ---
I just bought this laptop; started using it yesterday, so no idea about older
builds.
I got /var/log/messages from 3.15.5-200.fc20.x86_64 -- would they be useful?

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--- Comment #3 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #2)
> I just bought this laptop; started using it yesterday, so no idea about
> older builds.
> I got /var/log/messages from 3.15.5-200.fc20.x86_64 -- would they be
useful?
Does that contain the kernel logs? If so, sure -- try to extract the kernel
logs from all the other junk in there though, and limit it to just the boot in
question. But really just grabbing the output of dmesg seems simpler... You can
modprobe nouveau after the system has started too, btw.

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--- Comment #4 from Konstantin Svist <fry.kun at gmail.com> ---
Created attachment 103053
  --> https://bugs.freedesktop.org/attachment.cgi?id=103053&action=edit
/var/log/messages from 3.15.5-200.fc20.x86_64

attaching a trimmed version from 3.15.5-200.fc20.x86_64
I've grepped out the majority of the same message, though the file is still
2.7M uncompressed

Just running "dmesg" gives me a few seconds of the spam; everything
else is
gone already.

Will try a build from
http://koji.fedoraproject.org/koji/buildinfo?buildID=545032 later today.

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--- Comment #5 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Created attachment 103055
  --> https://bugs.freedesktop.org/attachment.cgi?id=103055&action=edit
extracted messages

OK, I've gone ahead and extracted some of the interesting stuff into the
above.

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--- Comment #6 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Does this card seriously have 6GB of dedicated GDDR5 VRAM? Or is it
misdetected? (Hm, looks like indeed one of the options on the marketing
page...)

I would not be surprised if we had some bugs for cards with > 4GB.
Unfortunately we don't have a vram_limit parameter.

Could you edit drivers/gpu/drm/nouveau/core/subdev/fb/ramnvc0.c -- take a look
at nvc0_ram_create_, and after the for loop that does ram->size += xyz, just
do

ram->size /= 2;

which will bring it down to 3GB... No clue if it'll help, but worth a shot.

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--- Comment #7 from Konstantin Svist <fry.kun at gmail.com> ---
Is this just libdrm compilation section from
http://nouveau.freedesktop.org/wiki/InstallNouveau/ ? Or something else?

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--- Comment #8 from Ilia Mirkin <imirkin at alum.mit.edu> ---
(In reply to comment #7)
> Is this just libdrm compilation section from
> http://nouveau.freedesktop.org/wiki/InstallNouveau/ ? Or something else?
No, in your kernel.

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--- Comment #9 from Konstantin Svist <fry.kun at gmail.com> ---
Created attachment 103230
  --> https://bugs.freedesktop.org/attachment.cgi?id=103230&action=edit
extracted dmesg

Ok, as you said I added
        ram->size /=2; // KOSTYA
right after the loop
        for (part = 0; part < parts; part++) {
in function nvc0_ram_create_

Here's the dmesg from when I ran modprobe and later rmmod with this module

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--- Comment #10 from Konstantin Svist <fry.kun at gmail.com> ---
please let me know what other info you need or what else I should try

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--- Comment #11 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Can you give this repo a shot?

http://cgit.freedesktop.org/~darktama/nouveau

It contains a few fixes for cards with "odd" memory configurations
which might
help your case out. You'll have to build it against 3.17-rc1 in all
likelihood.

cd drm && make

should build it against the currently-running kernel and produce a new
nouveau.ko.

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--- Comment #12 from Konstantin Svist <fry.kun at gmail.com> ---
got compilation error...

/home/kostya/projects/nouveau/darktama/drm/nouveau_drm.c: In function
?nouveau_platform_device_create_?:
/home/kostya/projects/nouveau/darktama/drm/nouveau_drm.c:1087:2: error:
implicit declaration of function ?drm_dev_set_unique?
[-Werror=implicit-function-declaration]
  err = drm_dev_set_unique(drm, "%s", dev_name(&pdev->dev));
  ^
cc1: some warnings being treated as errors
make[2]: *** [/home/kostya/projects/nouveau/darktama/drm/nouveau_drm.o] Error 1

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--- Comment #13 from Ilia Mirkin <imirkin at alum.mit.edu> ---
It's pretty finicky about the version you're building against... are you
sure
you're building it against 3.17-rc1?

drm_dev_set_unique came in via ca8e2ad71013049bc88a10b11d83712bfe56cdd4 and is
there starting 3.16-rc1.

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--- Comment #14 from Konstantin Svist <fry.kun at gmail.com> ---
Ah, i see.. I was building against my currently-running, which is 3.15.x

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--- Comment #15 from Konstantin Svist <fry.kun at gmail.com> ---
Ok, built against 3.17.0-0.rc1.git1.1.fc22.x86_64

now I have a problem insmod'ing it:

insmod: ERROR: could not insert module
/home/kostya/projects/nouveau/darktama/drm/nouveau.ko: Unknown symbol in module

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--- Comment #16 from Ilia Mirkin <imirkin at alum.mit.edu> ---
First do

modprobe drm

Then you can do

insmod .../nouveau.ko

If it still fails, look in dmesg for what symbol is missing.

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--- Comment #17 from Konstantin Svist <fry.kun at gmail.com> ---
Aug 21 22:16:16 mireille kernel: nouveau: module verification failed: signature
and/or  required key missing - tainting kernel
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_mmap (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_global_release
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_clean_mm (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_pool_unpopulate
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_agp_tt_create (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_manager_func
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_global_init
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_move_ttm (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_dma_tt_fini (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_device_release
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_agp_tt_populate
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_kunmap (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol
ttm_bo_del_sub_from_lru (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_agp_tt_unpopulate
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_mem_put (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_mem_space (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_device_init
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_wait (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_init_mm (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_dma_acc_size
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_tt_bind (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_evict_mm (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_kmap (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_add_to_lru (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_unref (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_mem_global_release
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_mem_global_init
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_dma_populate (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_dma_unpopulate
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_init (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_validate (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol
ttm_bo_move_accel_cleanup (err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_bo_move_memcpy
(err 0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_dma_tt_init (err
0)
Aug 21 22:16:16 mireille kernel: nouveau: Unknown symbol ttm_pool_populate (err
0)

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--- Comment #18 from Ilia Mirkin <imirkin at alum.mit.edu> ---
modprobe ttm
modprobe drm_kms_helper

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--- Comment #19 from Konstantin Svist <fry.kun at gmail.com> ---
finally insmod'ed, thanks for your help!
unfortunately the end result is same message spam :(

I'm just glad this laptop has dual graphics and I can keep working with
intel
graphics for the moment

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--- Comment #20 from Konstantin Svist <fry.kun at gmail.com> ---
any update for this?
driver still unusable for me!

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--- Comment #21 from Ilia Mirkin <imirkin at alum.mit.edu> ---
Does this still happen with kernel 4.1 or later?

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |MOVED
             Status|NEW                         |RESOLVED

--- Comment #22 from Martin Peres <martin.peres at free.fr> ---
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