Bug 710546

Summary: drivers/pci/intel-iommu.c:3069 quirk_ioat_snb_local_iommu+0xbc/0xd0( )
Product: Red Hat Enterprise Linux 6 Reporter: joshua
Component: kernelAssignee: Prarit Bhargava <prarit>
Status: CLOSED NOTABUG QA Contact: Red Hat Kernel QE team <kernel-qe>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 6.1CC: mmilgram, swsnyder
Target Milestone: rc   
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-06-10 11:40:35 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 joshua 2011-06-03 16:38:02 UTC 
Description of problem:

Running KVM (though not sure that is the trigger), I see kernel crashes:

WARNING: at drivers/pci/intel-iommu.c:3069 quirk_ioat_snb_local_iommu+0xbc/0xd0(
) (Not tainted)
Hardware name: SUN FIRE X2250    
BIOS assigned incorrect VT-d unit for Intel(R) QuickData Technology device
Modules linked in: ioatdma(+) dca shpchp e1000e ext4 mbcache jbd2 raid1 sr_mod c
drom sd_mod crc_t10dif pata_acpi ata_generic ata_piix ahci dm_mod [last unloaded
: scsi_wait_scan]
Pid: 887, comm: modprobe Not tainted 2.6.32-131.0.15.el6.x86_64 #1
Call Trace:
 [<ffffffff81067137>] ? warn_slowpath_common+0x87/0xc0
 [<ffffffff810671cf>] ? warn_slowpath_fmt_taint+0x3f/0x50
 [<ffffffff812971ac>] ? quirk_ioat_snb_local_iommu+0xbc/0xd0
 [<ffffffff812847bd>] ? pci_enable_resources+0x2d/0x170
 [<ffffffff8127fc7b>] ? pci_fixup_device+0x9b/0x160
 [<ffffffff8127ed2c>] ? do_pci_enable_device+0x5c/0x70
 [<ffffffff8127eda8>] ? __pci_enable_device_flags+0x68/0x80
 [<ffffffff8127edd3>] ? pci_enable_device+0x13/0x20
 [<ffffffff8127ee40>] ? pcim_enable_device+0x60/0xc0
 [<ffffffffa0135623>] ? ioat_pci_probe+0x18/0x184 [ioatdma]
 [<ffffffff81280bd7>] ? local_pci_probe+0x17/0x20
 [<ffffffff81281dc1>] ? pci_device_probe+0x101/0x120
 [<ffffffff8133b7a2>] ? driver_sysfs_add+0x62/0x90
 [<ffffffff8133b940>] ? driver_probe_device+0xa0/0x2a0
 [<ffffffff8133bbeb>] ? __driver_attach+0xab/0xb0
 [<ffffffff8133bb40>] ? __driver_attach+0x0/0xb0
 [<ffffffff8133aba4>] ? bus_for_each_dev+0x64/0x90
 [<ffffffff8133b6de>] ? driver_attach+0x1e/0x20
 [<ffffffff8133afe0>] ? bus_add_driver+0x200/0x300
 [<ffffffff8133bf16>] ? driver_register+0x76/0x140
 [<ffffffff81282026>] ? __pci_register_driver+0x56/0xd0
 [<ffffffffa0063000>] ? ioat_init_module+0x0/0x85 [ioatdma]
 [<ffffffffa0063000>] ? ioat_init_module+0x0/0x85 [ioatdma]
 [<ffffffffa006306d>] ? ioat_init_module+0x6d/0x85 [ioatdma]
 [<ffffffff8100204c>] ? do_one_initcall+0x3c/0x1d0
 [<ffffffff810aca5f>] ? sys_init_module+0xdf/0x250
 [<ffffffff8100b172>] ? system_call_fastpath+0x16/0x1b


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

RHEL 6.1 everything, kernel-2.6.32-131.0.15.el6.x86_64
Comment 2 Prarit Bhargava 2011-06-10 11:40:35 UTC 
Hi -- this message informs you that your BIOS is broken.  Please contact your HW vendor for a new BIOS.

"BIOS assigned incorrect VT-d unit for Intel(R) QuickData Technology device"

P.
Comment 3 Michele Baldessari 2014-05-03 08:00:17 UTC 
*** Bug 1093868 has been marked as a duplicate of this bug. ***