Bug 111685 - [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0
Summary: [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0
Status: RESOLVED MOVED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: DRI git
Hardware: x86-64 (AMD64) Linux (All)
: not set normal
Assignee: Default DRI bug account
QA Contact:
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Blocks:
 
Reported: 2019-09-14 09:18 UTC by Omar Emara
Modified: 2019-11-19 09:51 UTC (History)
0 users

See Also:
i915 platform:
i915 features:

Attachments
Bisect log (2.79 KB, text/x-log)
2019-09-14 09:18 UTC, Omar Emara 		no flags Details
Full log after the hang (91.38 KB, text/x-log)
2019-09-14 09:19 UTC, Omar Emara 		no flags Details
View All

Description Omar Emara 2019-09-14 09:18:25 UTC 
Created attachment 145359 [details]
Bisect log

To reproduce, pass the parameter amdgpu.dpm=0 to a kernel v5.2 or higher. The kernel will hang at boot. v5.1 boots correctly.

I have bisected the kernel between v5.1 and v5.2, the bisect log is attached below.

The last three lines from the log are as follow, the full log is attached below:

kernel: BUG: unable to handle page fault for address: ffff91fe41bdf5f8
kernel: #PF: supervisor read access in kernel mode
kernel: #PF: error_code(0x0000) - not-present page
Comment 1 Omar Emara 2019-09-14 09:19:42 UTC 
Created attachment 145360 [details]
Full log after the hang
Comment 2 Martin Peres 2019-11-19 09:51:22 UTC 
-- 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/906.

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