Bug 614021

Summary: [RHEL6][Kernel] WARNING: at arch/x86/kernel/cpu/mtrr/generic.c:467
Product: Red Hat Enterprise Linux 6 Reporter: Jeff Burke <jburke>
Component: kernelAssignee: Red Hat Kernel Manager <kernel-mgr>
Status: CLOSED NOTABUG QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: medium Docs Contact:
Priority: low    
Version: 6.0CC: airlied, arozansk, james.leddy, pbunyan, peterm
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
URL: http://rhts.redhat.com/cgi-bin/rhts/test_log.cgi?id=15277084
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-07-13 17:11:28 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 Jeff Burke 2010-07-13 14:08:55 UTC 
Description of problem:
 When testing the 2.6.32.45.el6 kernel we are seeing an issue during boot.

Version-Release numberWARNING: at arch/x86/kernel/cpu/mtrr/generic.c:467 generic_get_mtrr+0xee/0x100() (Not tainted) of selected component (if applicable):

How reproducible:
 Unknown
  
Actual results:

------------[ cut here ]------------
WARNING: at arch/x86/kernel/cpu/mtrr/generic.c:467  
generic_get_mtrr+0xee/0x100() (Not tainted)
Hardware name: ProLiant BL460c G5
mtrr: your BIOS has set up an incorrect mask, fixing it up.
Modules linked in: radeon(+) ttm drm_kms_helper drm i2c_algo_bit  
i2c_core dm_mod
Pid: 151, comm: modprobe Not tainted 2.6.32-45.el6.i686.debug #1
Call Trace:
 [<c04534e6>] warn_slowpath_common+0x76/0xb0
 [<c041e86e>] ? generic_get_mtrr+0xee/0x100
 [<c041e86e>] ? generic_get_mtrr+0xee/0x100
 [<c0453566>] warn_slowpath_fmt+0x26/0x30
 [<c041e86e>] generic_get_mtrr+0xee/0x100
 [<c041d78a>] mtrr_add_page+0xba/0x430
 [<f8071790>] ? radeon_driver_irq_handler_kms+0x0/0x20 [radeon]
 [<c041db45>] mtrr_add+0x45/0x60
 [<f805e136>] radeon_bo_init+0x26/0xb0 [radeon]
 [<f8071a23>] ? radeon_irq_kms_init+0xa3/0xb0 [radeon]
 [<f807b19a>] r100_init+0xea/0x290 [radeon]
 [<c06b6523>] ? vga_client_register+0x63/0x80
 [<f804bc3d>] radeon_device_init+0x27d/0x360 [radeon]
 [<f804ae40>] ? radeon_vga_set_decode+0x0/0x20 [radeon]
 [<f804cfed>] radeon_driver_load_kms+0x7d/0x180 [radeon]
 [<f7ee3548>] drm_get_dev+0x2f8/0x4f0 [drm]
 [<f80bdbcc>] radeon_pci_probe+0xd/0x1b0 [radeon]
 [<c06169de>] local_pci_probe+0xe/0x10
 [<c06177f0>] pci_device_probe+0x60/0x80
 [<c06c50a7>] driver_probe_device+0x87/0x290
 [<c06c5329>] __driver_attach+0x79/0x80
 [<c06c4478>] bus_for_each_dev+0x48/0x70
 [<c06c4e99>] driver_attach+0x19/0x20
 [<c06c52b0>] ? __driver_attach+0x0/0x80
 [<c06c481f>] bus_add_driver+0x1cf/0x320
 [<c0617730>] ? pci_device_remove+0x0/0x40
 [<c06c55b5>] driver_register+0x65/0x120
 [<c0607392>] ? __spin_lock_init+0x32/0x60
 [<c0617a24>] __pci_register_driver+0x54/0xc0
 [<f7ede20b>] drm_init+0xeb/0x100 [drm]
 [<f80ec0b2>] radeon_init+0xb2/0xb4 [radeon]
 [<c040303d>] do_one_initcall+0x2d/0x1d0
 [<f80ec000>] ? radeon_init+0x0/0xb4 [radeon]
 [<c049b073>] sys_init_module+0xb3/0x220
 [<c048bb9c>] ? trace_hardirqs_on_caller+0x12c/0x170
 [<c0602914>] ? trace_hardirqs_on_thunk+0xc/0x10
 [<c0409d10>] syscall_call+0x7/0xb
---[ end trace 3e19e146b8f6398e ]---

Expected results:
No Falure/Warning message traceback during normal operations

Additional info: