[Bug 83505] New: AMD A4-5300 APU : only radeon.dpm=1 prevents random reboots with 3.16.1 kernel.

[Bug 83505] New: AMD A4-5300 APU : only radeon.dpm=1 prevents random reboots with 3.16.1 kernel.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

          Priority: medium
            Bug ID: 83505
          Assignee: dri-devel@lists.freedesktop.org
           Summary: AMD A4-5300 APU : only radeon.dpm=1 prevents random
                    reboots with 3.16.1 kernel.
          Severity: minor
    Classification: Unclassified
                OS: Linux (All)
          Reporter: rpnpif@free.fr
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: DRM/Radeon
           Product: DRI

Created attachment 105760
  --> https://bugs.freedesktop.org/attachment.cgi?id=105760&action=edit
dmesg with radeon.dpm=1

I have read that for this AMD A4-5300 APU (Aruba), radeon.dpm=1 on the grub
command line of the kernel booting is useless because this option is already
per default in the kernel.

But if I don't use this option, Debian 7.6 reboots randomly after some minutes,
hours or days of work when I use Iceweasel/Firefox and some flash animation,
Libreoffice or other heavy application.

With this option, no reboots. All work fine after several days.

This issue seems about the same as
https://bugs.freedesktop.org/show_bug.cgi?id=82201#c26 but I am not sure.

I report this issue because dpm=1 should be useless.

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[Bug 83505] AMD A4-5300 APU : only radeon.dpm=1 prevents random reboots with 3.16.1 kernel.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

Rpnpif <rpnpif@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rpnpif@free.fr

--- Comment #1 from Rpnpif <rpnpif@free.fr> ---
I have now two consecutive reboot : I describe.

1. I worked on Iceweasel 24.8.0 with two opened windows. One editing a SPIP
site.
The second with editing a Wikipedia article, more one other tab with Wikipedia.
Claws-mail was also opened.

2. A reboot occurred without any log.

3. The system reboots on 3.16.1 kernel with always radeon.dpm=1.

4. I reopened a session on Xfce.

5. I rerun Iceweasel only. All the tab and windows are restored.

6. I opened this bug report and begun this new comments.

7. After writing two or three lines in the text area, the system rebooted
again!

8. I replaced radeon.dpm=1 with radeon.dpm=0, rerun update-grub.I rebooted.

9. I rerun again Iceweasel with restored tabs and I can now fill this comment !

To conclude. The reboot problem is not fixed by a radeon.dpm=1 in grub. So the
summary of this bug is not exact. I expect that no new reboot happened again.
I'll follow with dpm=0 to see.

Note that about 2 two seconds before a reboot, xorg freezes (a watchdog effect
?).
I have also a little doubt with a kernel network side-effect.

My question : how get a debug log when an immediate reboot happened?

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[Bug 83505] AMD A4-5300 APU : only radeon.dpm=1 prevents random reboots with 3.16.1 kernel.

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

--- Comment #2 from Rpnpif <rpnpif@free.fr> ---
I can confirm now that radeon.dpm=1 or none option get random immediate
reboots.

Only radeon.dpm=0 prevents this reboots as tested during one week.

So I change the summary.

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[Bug 83505] AMD A4-5300 APU : only radeon.dpm=1 get random reboots with 3.16.1 kernel.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

Rpnpif <rpnpif@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|AMD A4-5300 APU : only      |AMD A4-5300 APU : only
                   |radeon.dpm=1 prevents       |radeon.dpm=1 get random
                   |random reboots with 3.16.1  |reboots with 3.16.1 kernel.
                   |kernel.                     |

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

Rpnpif <rpnpif@free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|AMD A4-5300 APU : only      |AMD A4-5300 APU :
                   |radeon.dpm=1 get random     |radeon.dpm=1 get random
                   |reboots with 3.16.1 kernel. |reboots with 3.16.1 kernel.

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

--- Comment #3 from Rpnpif <rpnpif@free.fr> ---
Same issue on another machine with ASRock K7S41GX motherboard and Radeon RV280
with 3.14 Kernel from Debian Wheezy-Backport.

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

--- Comment #4 from Rpnpif <rpnpif@free.fr> ---
Created attachment 106141
  --> https://bugs.freedesktop.org/attachment.cgi?id=106141&action=edit
Dmesg from machine based on ASRock K7S41GX without radeon.dpm

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to comment #3)
> Same issue on another machine with ASRock K7S41GX motherboard and Radeon
> RV280 with 3.14 Kernel from Debian Wheezy-Backport.

RV280 does not support dpm so this parameter is useless for this asic.

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

--- Comment #6 from Rpnpif <rpnpif@free.fr> ---
No random reboots occurred during five days of use of 3.16.2 kernel.
I am waiting some days yet until I will say that this bug is resolved.

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

Rpnpif <rpnpif@free.fr> changed:

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

--- Comment #7 from Rpnpif <rpnpif@free.fr> ---
After one week without random reboots, I think that this bug is fixed in
3.16.2.
Thank you.

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[Bug 83505] AMD A4-5300 APU : radeon.dpm=1 get random reboots with 3.16.1 kernel.

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https://bugs.freedesktop.org/show_bug.cgi?id=83505

--- Comment #8 from Michel Dänzer <michel@daenzer.net> ---
(In reply to comment #7)
> After one week without random reboots, I think that this bug is fixed in
> 3.16.2.

That's weird though, as there are no directly related changes between 3.16.1
and 3.16.2. Can you bisect which change fixed it for you? (Note that you'll
have to reverse 'good' and 'bad' for the bisection, as git bisect can only
handle good -> bad)

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