Bug 480343

Summary: WARNING: at kernel/lockdep.c:2185 trace_hardirqs_on_caller+0xc7/0x145()
Product: [Fedora] Fedora Reporter: Orion Poplawski <orion>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED RAWHIDE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: low    
Version: rawhideCC: kernel-maint, kmcmartin, quintela
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2009-03-04 17:37:03 UTC Type: ---
Regression: --- Mount Type: ---
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Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:

Description Orion Poplawski 2009-01-16 15:28:54 UTC 
Description of problem:

Seeing this on my xen guests:

WARNING: at kernel/lockdep.c:2185 trace_hardirqs_on_caller+0xc7/0x145()
Modules linked in:
Pid: 0, comm: swapper Not tainted 2.6.29-0.35.rc1.git4.fc11.i686.PAE #1
Call Trace:
 [<c0436ac5>] warn_slowpath+0x71/0xa8
 [<c0454d70>] ? trace_hardirqs_off_caller+0x41/0xa3
 [<c0404bfd>] ? xen_mc_flush+0x1a5/0x1f4
 [<c0454ddd>] ? trace_hardirqs_off+0xb/0xd
 [<c0405397>] ? xen_mc_issue+0x35/0x48
 [<c0455b06>] trace_hardirqs_on_caller+0xc7/0x145
 [<c0455b8f>] trace_hardirqs_on+0xb/0xd
 [<c0405397>] xen_mc_issue+0x35/0x48
 [<c0405d51>] xen_set_pud_hyper+0x70/0x78
 [<c08d1371>] xen_start_kernel+0x6a9/0x81d
---[ end trace 4eaa2a86a8e2da22 ]---
Reserving virtual address space above 0xf5800000
Initializing cgroup subsys cpuset
Initializing cgroup subsys cpu
Linux version 2.6.29-0.35.rc1.git4.fc11.i686.PAE (mockbuild.phx.redh
at.com) (gcc version 4.3.2 20081105 (Red Hat 4.3.2-7) (GCC) ) #1 SMP Tue Jan 13 21:32:12 EST 2009
Comment 1 Kyle McMartin 2009-02-26 22:09:43 UTC 
Still seeing this with -rc6?
Comment 2 Orion Poplawski 2009-03-04 17:37:03 UTC 
Nope.