[Bug 68178] New: evergreen: hard lockup on suspend and resume with current firmware

[Bug 68178] New: evergreen: hard lockup on suspend and resume with current firmware

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

          Priority: medium
            Bug ID: 68178
          Assignee: dri-devel@lists.freedesktop.org
           Summary: evergreen: hard lockup on suspend and resume with
                    current firmware
          Severity: major
    Classification: Unclassified
                OS: Linux (All)
          Reporter: nine@detonation.org
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Radeon
           Product: DRI

Created attachment 84133
  --> https://bugs.freedesktop.org/attachment.cgi?id=84133&action=edit
dmesg of my system for information

As soon as the up to date firmware package is installed, my system hangs on
suspend and again on resume with the screen turned off and the system not
reacting to anything. Tested it on various kernels with the earliest being
3.7.10 (current openSUSE kernel) and the latest being 3.11-rc5.

I tried to get more information, but there are no logs, the screen is turned
off and even netconsole did not show more. Do you have suggestions about how to
debug this or things that I can try to narrow it down?

My GPU is a:

01:00.0 VGA compatible controller: Advanced Micro Devices [AMD] nee ATI Redwood
[Radeon HD 5670] (prog-if 00 [VGA controller])
        Subsystem: PC Partner Limited Device e151
        Flags: bus master, fast devsel, latency 0, IRQ 48
        Memory at e0000000 (64-bit, prefetchable) [size=256M]
        Memory at f4420000 (64-bit, non-prefetchable) [size=128K]
        I/O ports at e000 [size=256]
        Expansion ROM at f4400000 [disabled] [size=128K]
        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
        Kernel driver in use: radeon

Attaching dmesg of a running system just for info.

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|evergreen: hard lockup on   |evergreen: hard lockup on
                   |suspend and resume with     |suspend and resume with dpm
                   |current firmware            |

--- Comment #1 from Alex Deucher <agd5f@yahoo.com> ---
It's not the firmware per se.  It's probably the new dpm code.  Do you still
get when dpm is disabled?

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #2 from nine@detonation.org ---
(In reply to comment #1)
> It's not the firmware per se.  It's probably the new dpm code.  Do you still
> get when dpm is disabled?

Indeed. If I turn off dpm, I can suspend successfully and more or less
successfully resume. But a few seconds after resume my X server dies. May be
related or not. Attaching a dmesg taken after that.

It's strange though that with an older kernel I still get hangs on suspend and
resume even though they do not support dpm at all.

So how can I proceed?

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #3 from nine@detonation.org ---
Created attachment 84144
  --> https://bugs.freedesktop.org/attachment.cgi?id=84144&action=edit
dmesg after X server crash after suspend/resume without dpm

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #4 from Alex Deucher <agd5f@yahoo.com> ---
Sounds like this may be a problem independent of dpm.  Have you ever had
successful suspend and resume?  When you say X crash, do you you mean X hangs? 
system hangs?  segfault?

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #5 from nine@detonation.org ---
(In reply to comment #4)
> Sounds like this may be a problem independent of dpm.  Have you ever had
> successful suspend and resume? 

I've always (meaning > 5 years) had successful suspend and resume on this
machine. Until I updated the firmware files to test UVD and then dpm. With the
original firmware contained in openSUSE's kernel-firmware-20130114git-1.2.1
package, suspend/resume works just fine. I started having problems immediately
after updating the radeon firmware files from your FTP site. In the meantime,
openSUSE shipped an update to the kernel-firmware package with which I see the
same problems.

> When you say X crash, do you you mean X
> hangs?  system hangs?  segfault?

I mean the X server terminated unexpectedly and I got thrown back to the login
screen. Other than this message and the part about GPU lockup in the dmesg dump
I posted, I could not find any messages.

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #6 from nine@detonation.org ---
It seems like I have two independent problems which may explain the confusing
results I got:

* with DPM enabled I get hard locks on suspend and sometimes on resume. After
suspend I have to turn off power manually but it seems like it successfully
writes the suspend image to disk. On resume it sometimes locks with disabled
output, sometimes it works.

* Regardless of DPM enabled or not I get X server crashes within minutes after
a suspend/resume cycle. This happens with kernel 3.11.1 with current firmware.
When I downgrade my kernel-firmware package to 20130114git-1.2.1, this problem
vanishes. But the firmware may be the original cause. With the old firmware I
for example do not have direct rendering or acceleration.

At least I found a logfile giving more information about the X server crash.
Attaching.

Is there anything else I can do to debug these problems?

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #7 from nine@detonation.org ---
Created attachment 86476
  --> https://bugs.freedesktop.org/attachment.cgi?id=86476&action=edit
Xorg.0.log after X server crash after resume

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

nine@detonation.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #84144|0                           |1
        is obsolete|                            |

--- Comment #8 from nine@detonation.org ---
Created attachment 86477
  --> https://bugs.freedesktop.org/attachment.cgi?id=86477&action=edit
dmesg after X server crashed

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #9 from Alex Deucher <agd5f@yahoo.com> ---
THe only thing that has changed in the ucode is adding new ucode for UVD and
SMC.  If you use the newer firmware package but remove the UVD and/or SMC ucode
images, you should get the same behavior as with the old firmware package. 
Since dpm is not enabled by default, I think the problem is probably with UVD.

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #10 from nine@detonation.org ---
Indeed! After removing CYPRESS_uvd.bin the X server crashes vanish. Only the
hard locks with dpm remain.

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[Bug 68178] evergreen: hard lockup on suspend and resume with dpm

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #11 from Lars <lars+freedesktop@6xq.net> ---
(In reply to comment #6)
> * Regardless of DPM enabled or not I get X server crashes within minutes
> after a suspend/resume cycle. This happens with kernel 3.11.1 with current
> firmware. When I downgrade my kernel-firmware package to 20130114git-1.2.1,
> this problem vanishes. But the firmware may be the original cause. With the
> old firmware I for example do not have direct rendering or acceleration.

I have the same problem with kernel 3.11.6 on Gentoo Linux (stable) with a
Radeon HD 4650. Hibernation itself works, but shortly after resuming the
machine Xorg crashes with a bus error. Additionally dmesg contains messages
about GPU lockups before or after hibernating. Removing the uvd/smc blobs stops
Xorg from crashing, but disables direct rendering (including XVideo, …). Note
that Xorg does *not* crash after resuming from suspend to RAM.

Downgrading to 3.10 (with the same firmware package) does not solve the
problem, so I’m back to 3.4.67 for now, which works (both hibernate/direct
rendering) for me.

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[Bug 68178] xserver crashes with uvd

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

Alex Deucher <agd5f@yahoo.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|evergreen: hard lockup on   |xserver crashes with uvd
                   |suspend and resume with dpm |

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[Bug 68178] xserver crashes with uvd

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

--- Comment #12 from nine@detonation.org ---
Good news: somewhere between kernel 2.12.1 and 2.13-rc2 the hard lockup on
suspend got fixed! I've suspended several times now without a single lockup. On
resume though I still have lockups about half of the time I tried. This is
without UVD firmware but with active DPM

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[Bug 68178] xserver crashes with uvd

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https://bugs.freedesktop.org/show_bug.cgi?id=68178

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

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

--- Comment #13 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/375.

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