Bug 1826536

Summary: Hang on reboot with AMD graphics adapters
Product: [Fedora] Fedora Reporter: Adam Williamson <awilliam>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: high Docs Contact:
Priority: unspecified    
Version: 32CC: airlied, bcotton, bskeggs, hdegoede, ichavero, itamar, jarodwilson, jeremy, jglisse, john.j5live, jonathan, josef, kernel-maint, kevin, linville, masami256, mboddu, mchehab, mjg59, steved
Target Milestone: ---   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard: AcceptedFreezeException
Fixed In Version: kernel-5.6.6-300.fc32 Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2020-04-23 18:02:53 UTC Type: Bug
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Bug Depends On:    
Bug Blocks: 1705306    

Description Adam Williamson 2020-04-21 22:19:17 UTC 
There's a known bug in kernel 5.6.5 which causes systems with AMD graphics adapters (not sure if it's really all amdgpu-supported adapters, or some subset) to hang on reboot. This bug was introduced in 5.6.5, so by pulling 5.6.5 into the F32 RCs to fix https://bugzilla.redhat.com/show_bug.cgi?id=1825046 , we broke this. Some users reported running into this bug in the 5.6.5 update:

https://bodhi.fedoraproject.org/updates/FEDORA-2020-bebcd88161#comment-1336683
https://bodhi.fedoraproject.org/updates/FEDORA-2020-bebcd88161#comment-1337339

I'm filing this bug for consideration as an FE so we can pull 5.6.6 into the RC-1.5 compose instead and hopefully have both bugs fixed and no new ones introduced (crosses all available digits). We have a 5.6.6 build in Koji already.
Comment 1 Ben Cotton 2020-04-21 22:21:28 UTC 
+1 FE
Comment 2 Mohan Boddu 2020-04-21 22:22:29 UTC 
+1 FE
Comment 3 Kevin Fenzi 2020-04-21 22:27:54 UTC 
+1 FE
Comment 4 Justin M. Forbes 2020-04-21 22:29:35 UTC 
I would certainly consider this FE worthy, the kernel is built and submitted for testing, also as the rebase for F31, so it should get a decent amount of testing.
Comment 5 Adam Williamson 2020-04-21 22:29:44 UTC 
That's +3 or +4 (if I count myself), setting accepted.
Comment 6 Adam Williamson 2020-04-21 22:30:24 UTC 
Unfortunately we have to fire the RC like, right now, so we can't wait on testing first :/ we'll just build it and hope it's good! what could possibly go wrong (don't answer that)
Comment 7 Fedora Update System 2020-04-21 22:30:35 UTC 
FEDORA-2020-846d1658b2 has been submitted as an update to Fedora 32. https://bodhi.fedoraproject.org/updates/FEDORA-2020-846d1658b2
Comment 8 Fedora Update System 2020-04-23 18:02:53 UTC 
FEDORA-2020-846d1658b2 has been pushed to the Fedora 32 stable repository.
If problem still persists, please make note of it in this bug report.