Bug 98901 - amdgpu doesn't reinitialize after reboot in Xen PV DomU
Summary: amdgpu doesn't reinitialize after reboot in Xen PV DomU
Status: RESOLVED MOVED
Alias: None
Product: DRI
Classification: Unclassified
Component: DRM/AMDgpu (show other bugs)
Version: unspecified
Hardware: x86-64 (AMD64) Linux (All)
: medium normal
Assignee: Default DRI bug account
QA Contact:
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Reported: 2016-11-29 11:53 UTC by Mateusz Zalega
Modified: 2019-11-19 08:11 UTC (History)
0 users

See Also:
i915 platform:
i915 features:


Attachments
Logs from Xen Dom0 and affected DomU (49.14 KB, application/gzip)
2016-11-29 11:53 UTC, Mateusz Zalega
no flags Details
domU dmesg linux-4.9.0-rc7 (67.05 KB, text/plain)
2016-11-29 18:08 UTC, Mateusz Zalega
no flags Details

Description Mateusz Zalega 2016-11-29 11:53:44 UTC
Created attachment 128264 [details]
Logs from Xen Dom0 and affected DomU

I'm not sure whether this is a Xen or amdgpu bug.

amdgpu consistently does not reinitialize after paravirtualized Xen DomU reboots. It's a PCI passthrough setup - the physical machine does not reboot and it can't reset PCI Express devices.

This setup is working fine until I need to reboot the affected DomU.

DomU:
    Debian testing (29-11-2016)
    Linux version 4.7.0-1-amd64

Dom0:
    Debian GNU/Linux 8.6 (jessie)
    Linux 3.16.0-4-amd64

Graphics adapter:
    Radeon RX480

I attached an archive with all the relevant logs I could gather. Please contact me for further information/testing.
Comment 1 Alex Deucher 2016-11-29 13:34:16 UTC
Can you try a more recent kernel?  4.8 or 4.9?
Comment 2 Mateusz Zalega 2016-11-29 18:08:45 UTC
Created attachment 128271 [details]
domU dmesg linux-4.9.0-rc7
Comment 3 Mateusz Zalega 2016-11-29 18:10:02 UTC
(In reply to Alex Deucher from comment #1)
> Can you try a more recent kernel?  4.8 or 4.9?

I added a DomU startup log from a 4.9 series kernel. The result is the same in 4.8.
Comment 4 Martin Peres 2019-11-19 08:11:48 UTC
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