Bug 1366104

Summary:	[kernel] kernel panic and system freeze upon shutdown of Lenovo ThinkPad T400
Product:	[Fedora] Fedora	Reporter:	Joachim Frieben <jfrieben>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	25	CC:	gansalmon, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	kernel-4.8.0-0.rc1.git1.1.fc25	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-08-27 18:43:31 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Joachim Frieben 2016-08-11 04:53:47 UTC

Description of problem:
Recent kernels of the 4.8.0 development line lead to a kernel panic and system freeze on my Lenovo ThinkPad T400 when shutting down the machine. It is stuck at that point and needs a hard reset. Kernel 4.8.0-0.rc1.git1.1.fc25 was the first one to fix this issue.

Version-Release number of selected component (if applicable):
kernel-4.8.0-0.rc1.git0.1.fc25

How reproducible:
Always

Steps to Reproduce:
1. Shut down or reboot Lenovo ThinkPad T400 running kernel 4.8.0 prior to 4.8.0-0.rc1.git1.1.fc25.

Actual results:
Kernel panic before shut down or reboot procedure are completed.

Expected results:
System shuts down or reboots cleanly.

Additional info:
- issue fixed by kernel-4.8.0-0.rc1.git1.1.fc25.
- issue does not affect a virtual machine running kernel-4.8.0-0.rc1.git0.1.fc25.

Comment 1 Joachim Frieben 2016-08-11 04:57:24 UTC

According to https://bugzilla.redhat.com/show_bug.cgi?id=1361614#c11, kernel-4.8.0-0.rc1.git0.1.fc25 is scheduled for inclusion into Fedora 25 Alpha which should be avoided.