Bug 727690

Summary:	BUG: scheduling while atomic: swapper/0/0x10000002
Product:	[Fedora] Fedora	Reporter:	Horst H. von Brand <vonbrand>
Component:	kernel	Assignee:	Kernel Maintainer List <kernel-maint>
Status:	CLOSED RAWHIDE	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	urgent	Docs Contact:
Priority:	unspecified
Version:	rawhide	CC:	aquini, gansalmon, itamar, jonathan, jwboyer, kernel-maint, madhu.chinakonda
Target Milestone:	---
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-08-17 01:13:14 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Horst H. von Brand 2011-08-02 21:37:42 UTC

Description of problem:
BUG: scheduling while atomic: swapper/0/0x10000002 shows on the console, and the system hangs for good.

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


How reproducible:
Always

Steps to Reproduce:
1. Boot
2.
3.
  
Actual results:
Above message and hang

Expected results:


Additional info:
Samsung N210 netbook, dual-core Atom

Comment 1 Horst H. von Brand 2011-08-02 21:39:07 UTC

Version is 3,1.0-0.rc0.git11.2.fc17.x86_64

Comment 2 Horst H. von Brand 2011-08-02 21:44:15 UTC

With 3.1.0-0.rc0.git12.1.fc17.x86_64 it boots after the same message, but hangs after printing "Started Runtime Directory." Keyboard stays (somewhat) responsive (ESC switches to/from splash, but ctrl-alt-DEL does nothing).

Comment 3 Josh Boyer 2011-08-03 00:34:54 UTC

Does the backtrace look like the one in bug 726877?

Comment 4 Horst H. von Brand 2011-08-03 14:51:08 UTC

No backtrace, just the BUG line and hang.

Comment 5 Horst H. von Brand 2011-08-03 21:26:52 UTC

(In reply to comment #2)
> With 3.1.0-0.rc0.git12.1.fc17.x86_64 it boots after the same message, but hangs
> after printing "Started Runtime Directory." Keyboard stays (somewhat)
> responsive (ESC switches to/from splash, but ctrl-alt-DEL does nothing).

I get a similar hang with 2.6.40-4.fc15, cured with "selinux=0". Need to check the latest kernel...

Comment 6 Dave Jones 2011-08-03 21:47:14 UTC

it might be interesting to see if it boots with enforcing=0 instead, and see if there are any denials that get logged in /var/log/audit/

(you'll have to go through a relabel process now that you've done selinux=0 before this is possible).

Comment 7 Horst H. von Brand 2011-08-05 15:30:58 UTC

Currently 3.1.0-0.rc0.git17.1.fc17.x86_64, SELINUX enabled. I had to relabel (it seems I had some SELinux label snafu).

Comment 8 Josh Boyer 2011-08-15 14:37:43 UTC

Are you still getting the hangs with a 3.1.0-rc1/rc2 kernel?

Comment 9 Horst H. von Brand 2011-08-17 01:07:13 UTC

Nope, it worked.

Comment 10 Josh Boyer 2011-08-17 01:13:14 UTC

Thanks!