Bug 1373439

Summary:	Hang during Poweroff/Reboot after upgrading to 4.7.2-201 on Thinkpad T450
Product:	[Fedora] Fedora	Reporter:	Tommy He <lovenemesis>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED UPSTREAM	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	24	CC:	gansalmon, ichavero, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
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Last Closed:	2016-09-19 01:00:34 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Tommy He 2016-09-06 09:43:29 UTC

Description of problem:

While trying to power off or reboot the Thinkpad T450, the whole system hangs without response.
It only happens with kernel 4.7.2-201, not with any previous like 4.6.7-300, 4.6.6-300 etc.


Version-Release number of selected component (if applicable):

kernel-core.x86_64 4.7.2-201.fc24

How reproducible:

100%

Steps to Reproduce:
1. On Thinkpad T450, upgrade kernel to 4.7.2
2. Trying to initial poweroff/reboot either from terminal or GNOME menu
3. Observe

Actual results:

System hangs without response. Have to hard power off manually

Expected results:

System power off/reboot normally as it was before with kernel 4.6.7-300

Additional info:

System fully updated by 6 Sep 2016.
Just by selecting different kernels during boot would result differently.
UEFI/BIOS upgrade to v1.24, which is the latest version Lenovo provided.
journalctl shows a few nouveau error, not sure if it's related.

Let me know what additional logs I need to provide to assist pinpoint the cause.

Comment 1 Tommy He 2016-09-19 01:00:34 UTC

The issues is no more with kernel-4.7.3-200.fc24.x86_64