Nouveau - Aug 2019 - [Bug 111392] New: [NV110] bus: MMIO read of 00000000 FAULT at 619444 [ IBUS ]

https://bugs.freedesktop.org/show_bug.cgi?id=111392

            Bug ID: 111392
           Summary: [NV110] bus: MMIO read of 00000000 FAULT at 619444 [
                    IBUS ]
           Product: xorg
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: gius-italy at live.it
        QA Contact: xorg-team at lists.x.org

Created attachment 145046
  --> https://bugs.freedesktop.org/attachment.cgi?id=145046&action=edit
Dmesg - Full

Hi, everything looks like working fine on my system but I noticed some error
messages by Nouveau on dmesg. 


[    1.963196] nouveau: detected PR support, will not use DSM
[    1.964517] nouveau 0000:01:00.0: NVIDIA GM107 (1171b0a2)
[    2.009352] nouveau 0000:01:00.0: bios: version 82.07.79.00.1e
[    2.115174] nouveau 0000:01:00.0: fb: 2048 MiB GDDR5
[    2.115188] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554
[ IBUS ]
[    2.125653] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08
[ IBUS ]
[    2.786164] nouveau 0000:01:00.0: DRM: VRAM: 2048 MiB
[    2.786164] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[    2.786167] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid
[    2.786167] nouveau 0000:01:00.0: DRM: DCB version 4.0
[    2.786508] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[    2.786711] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on
minor 1
[   13.593658] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[   21.216350] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[   31.437080] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[ 3506.842157] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]


For read error on addresses 022544 and 10ac08 two bug reports already exists
(bug 100423 and bug 104835).

More info
Notebook model: ASUS N551JW
Kernel version: 5.2.6-200.fc30.x86_64 (Fedora 30)

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20190813/c8bdac5a/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=111392

--- Comment #1 from Giuseppe Lumia <gius-italy at live.it> ---
I found out something new about the bug. Looks like the read on 0x619444 is
called by the function gm107_gr_init_bios_2 in
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/tree/drivers/gpu/drm/nouveau/nvkm/engine/gr/gm107.c?h=v5.2.8#n309.

I got nvapeek to work on my system ( I had to disable kernel_lockdown since I
was getting "PCI init failure" ) and this is the output:

    ./nvapeek 0x619444
    00619444: badf1301


The curious thing is that if I analyze all the addresses preceding and
following 0x619444 I get only a list of badf1301 and badf1100 (so a "small
error" on the offset is to exclude).

Unfortunately I have no clue what this address 0x619444 refers to and why the
function gm107_gr_init_bios_2 was added to the source code. 

I also found out the commit which added this code:
https://github.com/torvalds/linux/commit/0f78acc86bbfc60cdaffd4eb03e4a35b28397cbb

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20190813/6fb20a2d/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=111392

Giuseppe Lumia <gius-italy at live.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[NV110] bus: MMIO read of   |[NV117] bus: MMIO read of
                   |00000000 FAULT at 619444 [  |00000000 FAULT at 619444 [
                   |IBUS ]                      |IBUS ]

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20190814/cf16b3d7/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=111392

--- Comment #2 from stf <fixpoint.combinator at gmail.com> ---
I am having the same problem, except that my XFCE sometimes freezes.

# cat /var/log/syslog | grep -i nouveau | cut -d' ' -f 7-
[48132.074803] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[    5.461491] nouveau: detected PR support, will not use DSM
[    5.463061] nouveau 0000:01:00.0: NVIDIA GM107 (117360a2)
[    5.582620] nouveau 0000:01:00.0: bios: version 82.07.b0.00.11
[    5.850055] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
[    5.850120] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554
[ IBUS ]
[    5.890448] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08
[ IBUS ]
[    5.949021] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
[    5.949024] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[    5.949030] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid
[    5.949041] nouveau 0000:01:00.0: DRM: DCB version 4.0
[    5.949901] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[    5.949923] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on
minor 1
nouveau-pci-0100
[   27.158915] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[ 3017.006179] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]

^^^^ This is the last line before the hard restart.

[    4.702574] nouveau: detected PR support, will not use DSM
[    4.704259] nouveau 0000:01:00.0: NVIDIA GM107 (117360a2)
[    4.814736] nouveau 0000:01:00.0: bios: version 82.07.b0.00.11
[    5.225233] nouveau 0000:01:00.0: fb: 4096 MiB GDDR5
[    5.225298] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 022554
[ IBUS ]
[    5.269825] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 10ac08
[ IBUS ]
[    5.328777] nouveau 0000:01:00.0: DRM: VRAM: 4096 MiB
[    5.328779] nouveau 0000:01:00.0: DRM: GART: 1048576 MiB
[    5.328786] nouveau 0000:01:00.0: DRM: Pointer to TMDS table invalid
[    5.328789] nouveau 0000:01:00.0: DRM: DCB version 4.0
[    5.329569] nouveau 0000:01:00.0: DRM: MM: using COPY for buffer copies
[    5.329589] [drm] Initialized nouveau 1.3.1 20120801 for 0000:01:00.0 on
minor 1
nouveau-pci-0100
[   31.454736] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[ 1718.113435] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[ 1828.533646] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]
[ 1848.942938] nouveau 0000:01:00.0: bus: MMIO read of 00000000 FAULT at 619444
[ IBUS ]

Linux kernel:
4.19.0-5-amd64 #1 SMP Debian 4.19.37-5+deb10u2 (2019-08-08) x86_64 GNU/Linux

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20190904/239c6de3/attachment.html>

https://bugs.freedesktop.org/show_bug.cgi?id=111392

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

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

--- Comment #3 from Martin Peres <martin.peres at free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/499.

-- 
You are receiving this mail because:
You are the assignee for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<https://lists.freedesktop.org/archives/nouveau/attachments/20191204/edbe30dd/attachment.html>