Bug 91841

Summary:

Juniper 5770 entering Hibernate crashes the system (instant reboot)

Product:

DRI

Reporter:

Heiko Lechner <Heiko.Lechner>

Component:

DRM/Radeon

Assignee:

Default DRI bug account <dri-devel>

Status:

RESOLVED FIXED

QA Contact:

Severity:

critical

Priority:

medium

Version:

unspecified

Hardware:

x86-64 (AMD64)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
grep(ed) drm out of dmesg	none
modinfo on radeon	none
Full dmesg output	none
dmesg output from notebook	none
lspci output from notebook	none

Description Heiko Lechner 2015-09-01 18:48:51 UTC

Created attachment 118037 [details]
grep(ed) drm out of dmesg

Hi!

I'm running Lubuntu 15.04 with open source radeon driver.

Hibernating with systemd crashed, so I read this guide:
https://www.kernel.org/doc/Documentation/power/basic-pm-debugging.txt

# echo freezer > /sys/power/pm_test
# echo platform > /sys/power/disk
# echo disk > /sys/power/state

worked

# echo devices > /sys/power/pm_test
# echo platform > /sys/power/disk
# echo disk > /sys/power/state

crashed

so according to the guide it seemed to be a driver issue.

I started in recovery mode (command line) and pm_test worked as far as core- so hibernate worked.

The modules that are only loaded during "normal" boot are:
cfg80211 
amdkfd
amd_iommu_v2
radeon

Even without cfg80211 hibernate crashes the system, so only radeon is left.

So I booted with radeon.modeset=0 kernel parameter resulting in radeon not loading at all- but _hibernate works_!

Then I booted with radeon.dpm=0 kernel parameter resulting in power_method=profile and profile set to default but hibernate does not work and crashes.

For me it is obvious that this behavior is triggered by radeon driver.

What can I do next?

Comment 1 Heiko Lechner 2015-09-02 08:16:40 UTC

Created attachment 118046 [details]
modinfo on radeon

Comment 2 Heiko Lechner 2015-09-02 08:17:09 UTC

Created attachment 118047 [details]
Full dmesg output

Comment 3 Heiko Lechner 2015-09-06 21:21:37 UTC

I booted the same system on my notebook (I installed Ubuntu 15.04 on an usb drive) equipped with an "Advanced Micro Devices, Inc. [AMD/ATI] Madison [Mobility Radeon HD 5650/5750 / 6530M/6550M]" and there it works like a charm.

I attached dmesg and lspci output.

Hope that helps.

Comment 4 Heiko Lechner 2015-09-06 21:22:23 UTC

Created attachment 118108 [details]
dmesg output from notebook

Comment 5 Heiko Lechner 2015-09-06 21:22:55 UTC

Created attachment 118109 [details]
lspci output from notebook

Comment 6 Heiko Lechner 2016-06-30 12:39:07 UTC

Fixed at some point in Kernel source.
With 4.7-rcs kernel there are no problems.

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