[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

            Bug ID: 110360
           Summary: AMD system hits AMD-Vi: Completion-Wait loop timed out
                    on Acer Squirtle_SR laptop
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: jian-hong@endlessm.com

Created attachment 143905
  --> https://bugs.freedesktop.org/attachment.cgi?id=143905&action=edit
The error log

We have an Acer Squirtle_SR laptop equipped with AMD A9-9420e RADEON R5, 5
COMPUTE CORES 2C+3G and [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 /
M440/M445] [1002:6900].  We test it with Linux kernel 5.1.0-rc4.  The system
hits the following error and makes system hang up:

Apr 09 11:28:57 endless kernel: AMD-Vi: Completion-Wait loop timed out
Apr 09 11:28:57 endless kernel: iwlwifi 0000:03:00.0: AMD-Vi: Event logged
[IO_PAGE_FAULT domain=0x0000 address=0xff814000 flags=0x0050]

The worst case is the disk's block may be disrupted, then we have to re-install
the system if it cannot be recovered by fsck.

If we blacklist the amdgpu module, then system will not hit the error.  But
system has no GUI, and only shows console.

If iommu=soft is appended to the boot command, system works fine.

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

jian-hong@endlessm.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |x86-64 (AMD64)
           Priority|medium                      |high
                 OS|All                         |Linux (All)

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #1 from jian-hong@endlessm.com ---
The [AMD/ATI] Topaz XT [Radeon R7 M260/M265 / M340/M360 / M440/M445]
[1002:6900]

01:00.0 Display controller [0380]: Advanced Micro Devices, Inc. [AMD/ATI] Topaz
XT [Radeon R7 M260/M265 / M340/M360 / M440/M445] [1002:6900] (rev c3)
        Subsystem: Acer Incorporated [ALI] Topaz XT [Radeon R7 M260/M265 /
M340/M360 / M440/M445] [1025:1217]
        Physical Slot: 0
        Flags: bus master, fast devsel, latency 0, IRQ 44
        Memory at c0000000 (64-bit, prefetchable) [size=256M]
        Memory at d0000000 (64-bit, prefetchable) [size=2M]
        I/O ports at 3000 [size=256]
        Memory at d1400000 (32-bit, non-prefetchable) [size=256K]
        Expansion ROM at d1440000 [disabled] [size=128K]
        Capabilities: [48] Vendor Specific Information: Len=08 <?>
        Capabilities: [50] Power Management version 3
        Capabilities: [58] Express Legacy Endpoint, MSI 00
        Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
        Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1 Len=010
<?>
        Capabilities: [150] Advanced Error Reporting
        Capabilities: [270] #19
        Capabilities: [2b0] Address Translation Service (ATS)
        Capabilities: [2c0] Page Request Interface (PRI)
        Capabilities: [2d0] Process Address Space ID (PASID)
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #143905|text/x-log                  |text/plain
          mime type|                            |

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #2 from Alex Deucher <alexdeucher@gmail.com> ---
Does booting with amdgpu.runpm=0 on the kernel command line in grub help?

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #3 from jian-hong@endlessm.com ---
Created attachment 143916
  --> https://bugs.freedesktop.org/attachment.cgi?id=143916&action=edit
The dmesg of disabled amdgpu's runpm

(In reply to Alex Deucher from comment #2)
> Does booting with amdgpu.runpm=0 on the kernel command line in grub help?

System boots correctly with amdgpu.runpm=0 on the kernel command line.

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #143916|text/x-log                  |text/plain
          mime type|                            |

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           See Also|                            |https://bugzilla.kernel.org
                   |                            |/show_bug.cgi?id=194521

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #4 from jian-hong@endlessm.com ---
Created attachment 143930
  --> https://bugs.freedesktop.org/attachment.cgi?id=143930&action=edit
The dmesg of disabled pci ats

Also tested with 'pci=noats' on boot command which is mentioned in
https://bugzilla.kernel.org/show_bug.cgi?id=194521#c24
System also boots fine.

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #5 from Alex Deucher <alexdeucher@gmail.com> ---
Please attach the output of lspci -vnn

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #6 from jian-hong@endlessm.com ---
Created attachment 143946
  --> https://bugs.freedesktop.org/attachment.cgi?id=143946&action=edit
lspci -nnv

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #7 from jian-hong@endlessm.com ---
Any thing else I can help more?  Test or need more information, log? :)

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #8 from Alex Deucher <alexdeucher@gmail.com> ---
https://patchwork.kernel.org/patch/10889269/

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #9 from Alex Deucher <alexdeucher@gmail.com> ---
(In reply to Alex Deucher from comment #8)
> https://patchwork.kernel.org/patch/10889269/

I think it's actually a problem with runtime pm and some pci state.  I may ask
you to help debug that when I get a chance.

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

--- Comment #10 from Daniel Drake <dan@reactivated.net> ---
Thanks Alex. We will have to return this unit to the vendor at some point, but
we will try to hold onto it for another month so that we can run any tests you
request.

Alternatively, we may be able to get an affected unit shipped to you on a
1-month loan. Would that be useful?

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[Bug 110360] AMD system hits AMD-Vi: Completion-Wait loop timed out on Acer Squirtle_SR laptop

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https://bugs.freedesktop.org/show_bug.cgi?id=110360

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

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

--- 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/740.

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