[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=93895

            Bug ID: 93895
           Summary: GPU lockup on AMD A4-3400 APU when starting X server
                    on opensource drivers. (works fine with fglrx)
           Product: DRI
           Version: unspecified
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: azari4096@gmail.com

I've had this lockup on this machine for the past few years, across several
different kernel versions, different distributions, etc. Booting with KMS works
fine, but the second a graphical environment starts (whether X or
wayland-based), it locks up.

Booting Ubuntu with user-space mode-setting works, and then I can install FGLRX
from there and everything works fine. After speaking with airlied on IRC, they
suggested it could be a workaround that AMD has put into FGLRX that never made
it into the opensource drivers, and that AMD might have to look into it.

CPU/GPU     : A4-3400
Motherboard : GA-A75M-D2H  (
http://www.gigabyte.com/products/product-page.aspx?pid=3930#ov )

journalctl log of the lockup:

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

    Jan 27 18:28:32 miku dbus-daemon[374]: Successfully activated service
'org.freedesktop.systemd1'
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: ring 0 stalled for more
than 10000msec
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: GPU lockup (current fence
id 0x0000000000000001 last fence id 0x0000000000000003 on ring 0)
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: Saved 55 dwords of
commands on ring 0.
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: GPU softreset: 0x00000009
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   GRBM_STATUS            
  = 0xB1403828
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   GRBM_STATUS_SE0        
  = 0x28000007
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   GRBM_STATUS_SE1        
  = 0x00000007
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   SRBM_STATUS            
  = 0x20000840
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   SRBM_STATUS2           
  = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:  
R_008674_CP_STALLED_STAT1 = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:  
R_008678_CP_STALLED_STAT2 = 0x40000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   R_00867C_CP_BUSY_STAT  
  = 0x00008000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   R_008680_CP_STAT       
  = 0x80228643
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   R_00D034_DMA_STATUS_REG
  = 0x44C83D57
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:
GRBM_SOFT_RESET=0x00007F6B
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:
SRBM_SOFT_RESET=0x00000100
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   GRBM_STATUS            
  = 0x00003828
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   GRBM_STATUS_SE0        
  = 0x00000007
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   GRBM_STATUS_SE1        
  = 0x00000007
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   SRBM_STATUS            
  = 0x20000040
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   SRBM_STATUS2           
  = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:  
R_008674_CP_STALLED_STAT1 = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:  
R_008678_CP_STALLED_STAT2 = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   R_00867C_CP_BUSY_STAT  
  = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   R_008680_CP_STAT       
  = 0x00000000
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0:   R_00D034_DMA_STATUS_REG
  = 0x44C83D57
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: GPU reset succeeded,
trying to resume
    Jan 27 18:28:42 miku kernel: [drm] Found smc ucode version: 0x00011100
    Jan 27 18:28:42 miku kernel: [drm] PCIE GART of 1024M enabled (table at
0x0000000000274000).
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: WB enabled
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: fence driver on ring 0
use gpu addr 0x0000000020000c00 and cpu addr 0xffff8800c613fc00
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: fence driver on ring 3
use gpu addr 0x0000000020000c0c and cpu addr 0xffff8800c613fc0c
    Jan 27 18:28:42 miku kernel: radeon 0000:00:01.0: fence driver on ring 5
use gpu addr 0x0000000000072118 and cpu addr 0xffffc90002432118
    Jan 27 18:28:42 miku kernel: [drm] ring test on 0 succeeded in 1 usecs
    Jan 27 18:28:42 miku kernel: [drm] ring test on 3 succeeded in 3 usecs
    Jan 27 18:28:42 miku kernel: [drm] ring test on 5 succeeded in 1 usecs
    Jan 27 18:28:42 miku kernel: [drm] UVD initialized successfully.
    Jan 27 18:28:52 miku kernel: radeon 0000:00:01.0: ring 0 stalled for more
than 10370msec
    Jan 27 18:28:52 miku kernel: radeon 0000:00:01.0: GPU lockup (current fence
id 0x0000000000000002 last fence id 0x0000000000000004 on ring 0)
    Jan 27 18:28:52 miku kernel: [drm:r600_ib_test [radeon]] *ERROR* radeon:
fence wait failed (-35).
    Jan 27 18:28:52 miku kernel: [drm:radeon_ib_ring_tests [radeon]] *ERROR*
radeon: failed testing IB on GFX ring (-35).
    Jan 27 18:29:22 miku systemd[1]: Started Getty on tty2.

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

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 317 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #1 from Azari <azari4096@gmail.com> ---
Created attachment 121337
  --> https://bugs.freedesktop.org/attachment.cgi?id=121337&action=edit
dmesg log from the machine in question.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 321 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #2 from Azari <azari4096@gmail.com> ---
Created attachment 121338
  --> https://bugs.freedesktop.org/attachment.cgi?id=121338&action=edit
Xorg log file from the machine in question.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 565 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #3 from Azari <azari4096@gmail.com> ---
Created attachment 121339
  --> https://bugs.freedesktop.org/attachment.cgi?id=121339&action=edit
lspci output with pci IDs for everything, from the machine in question.

I forgot to add the PCI ID for the GPU in the initial report, it's 1002:9644

I have also added an attachment with lspci output for all the other devices, as
well as attachments of the dmesg ouput and the xorg log.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 329 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #4 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 121340
  --> https://bugs.freedesktop.org/attachment.cgi?id=121340&action=edit
possible fix

Does this kernel patch help?

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 473 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #5 from Azari <azari4096@gmail.com> ---
(In reply to Alex Deucher from comment #4)
> Created attachment 121340 [details] [review]
> possible fix
> 
> Does this kernel patch help?

I just finished compiling and testing a kernel with that patch; it didn't help,
it still has the same issues. =(

Thanks for the prompt reply by the way.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1094 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #6 from Azari <azari4096@gmail.com> ---
I have something new to report after doing more testing.

It seems that if I launch weston with the pixman backend (weston --use-pixman),
that works, but meanwhile, startx with 'exec twm' in .xinitrc doesn't work on
first attempt, it causes the lockup.

However, after the lockup, if i try to startx again (still with twm), it
suddenly works and i can start applications in twm and use the desktop. I
managed to reproduce this with Xfce as well, the first 'startxfce4' after
bootup will fail and lockup the GPU, and after it resets, I try again and Xfce
works.

One thing of note is that when I finally do manage to get a DE started (after
the GPU has locked up and reset once), glxinfo shows only "gallium on
llvmpipe"; no hardware acceleration available.

So whatever is causing the lockup is something that X does at startup (even
when a minimal X window manager like twm is used), but weston-pixman doesn't
do.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 247 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #7 from Alex Deucher <alexdeucher@gmail.com> ---
Check your xorg log and make sure acceleration is enabled.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

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[-- Attachment #1.1: Type: text/plain, Size: 347 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #8 from Azari <azari4096@gmail.com> ---
Created attachment 121447
  --> https://bugs.freedesktop.org/attachment.cgi?id=121447&action=edit
startx with 'exec twm' in .xinitrc right after bootup; causes lockup.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 362 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #9 from Azari <azari4096@gmail.com> ---
Created attachment 121448
  --> https://bugs.freedesktop.org/attachment.cgi?id=121448&action=edit
second attempt after lockup; startx with 'exec twm' in .xinitrc suddenly works
fine.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 1628 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=93895

--- Comment #10 from Azari <azari4096@gmail.com> ---
(In reply to Alex Deucher from comment #7)
> Check your xorg log and make sure acceleration is enabled.

It seems that acceleration disables itself after the first startx attempt locks
up the GPU:

[   326.027] (--) RADEON(0): Chipset: "SUMO2" (ChipID = 0x9644)
[   326.027] (II) RADEON(0): GPU accel disabled or not working, using shadowfb
for KMS
[   326.027] (II) Loading sub module "shadow"
[   326.027] (II) LoadModule: "shadow"
[   326.027] (II) Loading /usr/lib/xorg/modules/libshadow.so
[   326.047] (II) Module shadow: vendor="X.Org Foundation"
[   326.047]     compiled for 1.18.0, module version = 1.1.0
[   326.047]     ABI class: X.Org ANSI C Emulation, version 0.4
[   326.047] (II) RADEON(0): KMS Color Tiling: disabled
[   326.047] (II) RADEON(0): KMS Color Tiling 2D: disabled
[...]
[   326.247] (WW) RADEON(0): Direct rendering disabled
[   326.247] (II) RADEON(0): Acceleration disabled
[...]
[   326.252] (II) AIGLX: Screen 0 is not DRI2 capable
[   326.252] (EE) AIGLX: reverting to software rendering
[   326.329] (II) AIGLX: enabled GLX_MESA_copy_sub_buffer
[   326.331] (II) AIGLX: Loaded and initialized swrast
[   326.331] (II) GLX: Initialized DRISWRAST GL provider for screen 0


The full log is in this attachment:
https://bugs.freedesktop.org/attachment.cgi?id=121448

I also uploaded another xorg log from the first attempt that causes the lockup,
in case you want to see the difference between the two or something.

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[Bug 93895] GPU lockup on AMD A4-3400 APU when starting X server on opensource drivers. (works fine with fglrx)

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https://bugs.freedesktop.org/show_bug.cgi?id=93895

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

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

--- Comment #11 from Martin Peres <martin.peres@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/drm/amd/issues/694.

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