Note: This is a beta release of Red Hat Bugzilla 5.0. The data contained within is a snapshot of the live data so any changes you make will not be reflected in the production Bugzilla. Also email is disabled so feel free to test any aspect of the site that you want. File any problems you find or give feedback here.

Bug 156050

Summary: Kernel panic, uninitialized spinlock in block/cfq-iosched.c:1065
Product: [Fedora] Fedora Reporter: Eli <elicarter>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED DUPLICATE QA Contact: Brian Brock <bbrock>
Severity: medium Docs Contact:
Priority: medium    
Version: 3   
Target Milestone: ---   
Target Release: ---   
Hardware: i686   
OS: Linux   
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2005-04-28 21:04:24 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:

Description Eli 2005-04-27 01:08:18 UTC
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050416 Fedora/1.0.3-1.3.1 Firefox/1.0.3

Description of problem:
On shutdown, I once saw a kernel panic, uninitialized spinlock in block/cfq-iosched.c:1065

From my written notes:
Stopping cups: Kernel panic - not syncing: drivers/block/cfq-iosched.c:1065: spin_is_locked on uninitialized spinlock ed89301c. (Not tainted)

I've only seen this once, but due to regressions in other behavior for this kernel, I'm running kernel-2.6.10-1.770_FC3 for the most part.

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

How reproducible:
Didn't try

Steps to Reproduce:
1. Shutdown computer

Actual Results:  Saw kernel panic message as described above.

Expected Results:  Don't panic.

Additional info:

Comment 1 Eli 2005-04-27 02:43:03 UTC
Further testing....  I can get this again on shutdown with kernel-2.6.11-1.14_FC3.
I'm not finding anything in /var/log/* about it, so I'm going by the notes I
jotted down:
I got the same kernel panic message as before, then "atkbd.c: Spurious ACK on
isa0060/serio0.  Some program, like XFree86, might be trying to access hardware
directly." scrolling on the screen.
I had to use the power button to shutdown, and the system complained of an
unclean shutdown when I powered up again.

Comment 2 Dave Jones 2005-04-28 21:04:24 UTC

*** This bug has been marked as a duplicate of 155472 ***