[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

            Bug ID: 100979
           Summary: Radeon r4 on a6-6310(BEEMA) APU hard lockup on
                    hibernate and on second resume from suspend
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: soprwa@gmail.com

I'm using kernel 4.11 on gentoo with SI/CIK enabled on Lenovo G50-45 Notebook.
Machine has AMD APU A6 6130 with Radeon r4 graphics card (Beema/Mullins). This
CPU supports olny AMD IOMMU v1. There is no discrete graphic card on it, APU
only.

When I try to hibernate this notebook it doesn't turning off. I have to press
power button to reboot the machine. Similar situation is on "radeon" driver,
and I had submitted bug report about this on kernel's bugzilla:

https://bugzilla.kernel.org/show_bug.cgi?id=191571

But in this situation I'm unable to bisect because as I remember correctly
problem always occur on amdgpu driver, so I think those two can correlate with
each other. (dmesg form hibernation process attached).

As for suspend.
I can suspend/resume machine successfully only once in a row. Second time
machine suspends correctly, but on resume I have hard lockup, fans are spinning
on full rpm's and I cannot do anything but pressing power button to reboot(cold
boot) the netbook.
Moreover in dmesg after first suspend I've got error messages:

[drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* displayport link status
failed
[drm:amdgpu_atombios_dp_link_train [amdgpu]] *ERROR* clock recovery failed

Attachments:
1. Log after clean start.
2. Kernel's config file.
3. Log after hibernation process.
4. Log after first suspend/resume.
5. Log after second suspend/resume.

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #1 from Przemek <soprwa@gmail.com> ---
Created attachment 131281
  --> https://bugs.freedesktop.org/attachment.cgi?id=131281&action=edit
system log after clean boot

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #2 from Przemek <soprwa@gmail.com> ---
Created attachment 131282
  --> https://bugs.freedesktop.org/attachment.cgi?id=131282&action=edit
system log after performing hibernate

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #3 from Przemek <soprwa@gmail.com> ---
Created attachment 131283
  --> https://bugs.freedesktop.org/attachment.cgi?id=131283&action=edit
kernel config file

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #4 from Przemek <soprwa@gmail.com> ---
Created attachment 131284
  --> https://bugs.freedesktop.org/attachment.cgi?id=131284&action=edit
system log after first suspend

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #5 from Przemek <soprwa@gmail.com> ---
Created attachment 131285
  --> https://bugs.freedesktop.org/attachment.cgi?id=131285&action=edit
system log after second suspend and hard lockup

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #6 from Daniel <daniel@danieltippmann.de> ---
The situation over here is maybe related:

Hibernating/suspend-to-disk/s4 on my new AMD Carrizo box fails.

Upon hibernate, the system just reboots. No hints in the logs.

Suspend-to-RAM/S3 works fine.

When I disable amdgpu, hibernate & resume work fine.

Linux-4.11.3-gentoo-x86_64-AMD_A12-9800_RADEON_R7,_12_COMPUTE_CORES_4C+8G-with-gentoo-2.3,
sys-kernel/linux-firmware-20170519

Cheers, Daniel

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #7 from Daniel <daniel@danieltippmann.de> ---
Now on kernel 4.11.7 and linux-firmware-20170622, still no good.

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #8 from Przemek <soprwa@gmail.com> ---
Created attachment 132411
  --> https://bugs.freedesktop.org/attachment.cgi?id=132411&action=edit
dmesg after first suspend/resume process kernel 4.12

Situation still persist on kernel 4.12. After second "suspend" machine cannot
resume.
I've attached dmesg after first suspend/resume process.

If I could help/test patches please let me know.
Thanks for your effort,
Przemek.

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #9 from Przemek <soprwa@gmail.com> ---
I have just upgraded kernel to 4.15.
There is a big progress. Laptop can now successfully suspend (S3) and resume 
many times in a row.

_Thank you very much for your hard work_.

But unfortunately hibernate to disk (S4) still does not work as expected.
Process is causing hard lockup (system freeze) just on the first attempt. 

Display goes black (backlight is on), cpu is getting hot (fans are working 100%
rpms), and I can do noting more than press "power button" to hard reset the
machine.

There is no more "amdgpu_atombios_dp_link_train" message in dmesg instead there
are mesages related to "swiotlb buffer is full" and "swiotlb: coherent
allocation failed" as in the bug:
https://bugs.freedesktop.org/show_bug.cgi?id=104082.

Thanks,
Przemek

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #10 from Przemek <soprwa@gmail.com> ---
After some research I think that messages "swiotlb buffer is full" and
"swiotlb: coherent allocation failed" are not related to this bug:

https://lkml.org/lkml/2018/1/16/106

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #11 from Przemek <soprwa@gmail.com> ---
Created attachment 137085
  --> https://bugs.freedesktop.org/attachment.cgi?id=137085&action=edit
kernel log during hibernate

Kernel log taken during hibernate process. Netbook was booted up with command
line "initcall_debug" and "no_console_suspend".

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #12 from Przemek <soprwa@gmail.com> ---
The valid mailing list post, when it comes to messages "swiotlb buffer is full"
and "swiotlb: coherent allocation failed", is:
https://lkml.org/lkml/2018/1/10/132. Thanks to Alex Deucher correcting me in
another bug report.

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #13 from Przemek <soprwa@gmail.com> ---
Using the opportunity that I was working on another bug report with AMD DC
kernel driver, and have git cloned agd5f drm-next-4.17-wip branch, I have tried
to debug the situation on hibernate process with this experimental kernel also.

This time hibernation image is created, and laptop turns off after that.

But - during the hibernation process screen goes totally white, process take
approximately 15-20 seconds on ssd drive before netbook gets power-off.

During resume hibernation image is read (it is possible to see percentage) and
then screen goes white, and machine is in a locked-up state. I can do nothing
but press power button to hard-reset the netbook.

Moreover I foud only once an error message in kernel log:

"Mar 28 01:36:54 eclipse kernel: [   86.665473]
[drm:drm_atomic_helper_wait_for_flip_done] *ERROR* [CRTC:39:crtc-0] flip_done
timed out
Mar 28 01:36:54 eclipse kernel: [   86.828685] [drm:gfx_v7_0_ring_test_ring]
*ERROR* amdgpu: ring 0 test failed (scratch(0xC040)=0xCAFEDEAD)
Mar 28 01:36:54 eclipse kernel: [   86.828698]
[drm:amdgpu_device_ip_resume_phase2] *ERROR* resume of IP block <gfx_v7_0>
failed -22
Mar 28 01:36:54 eclipse kernel: [   86.828703] [drm:amdgpu_device_resume]
*ERROR* amdgpu_device_ip_resume failed (-22).
Mar 28 01:36:54 eclipse kernel: [   86.828718] dpm_run_callback():
pci_pm_restore+0x0/0xa0 returns -22
Mar 28 01:36:54 eclipse kernel: [   86.828742] PM: Device 0000:00:01.0 failed
to restore async: error -22"

of course I am unable to reproduce it. I am not sure how much it is related but
this could be usefull, tough.

Kernel was booted up with amdgpu.dc=1.

Any help is appreciated.

Thanks,
Przemek.

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

Przemek <soprwa@gmail.com> changed:

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

--- Comment #14 from Przemek <soprwa@gmail.com> ---
I have tested hibernation on amd-staging-drm-next (git status - commit 
fa16d1eb6a78b265480bd4c2b8739c1ea261cdd8 ) and it's working as it should (with
minor glitch).

Moreover I can suspend and resume the machine many times in a row without
freeze/lockup. 

I nave no idea which commit made things work again, because haven't checked
this future lately.

The only problem is that the second monitor connected to hdmi output is turning
of after suspend/hibernate, and eDP screen brightness level is maxed out after
resume from hibernate but this is not the case of this report.

Given the above I'm closing this bug report as RESOLVED/FIXED.

Thank you very much,
Przemek.

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[Bug 100979] Radeon r4 on a6-6310(BEEMA) APU hard lockup on hibernate and on second resume from suspend

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https://bugs.freedesktop.org/show_bug.cgi?id=100979

--- Comment #15 from Przemek <soprwa@gmail.com> ---
Just for the rectification,

after resume from hibernate both screens lights up as they should (eDP and
HDMI).

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