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

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Sep 6 03:40:34 PDT 2014


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

Rpnpif <rpnpif at free.fr> changed:

           What    |Removed                     |Added
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                 CC|                            |rpnpif at free.fr

--- Comment #1 from Rpnpif <rpnpif at 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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