Bug 1185660

Summary: [abrt] WARNING: CPU: 2 PID: 705 at drivers/dma/ioat/dca.c:697 ioat3_dca_init+0x19c/0x1b0 [ioatdma]()
Product: [Fedora] Fedora Reporter: SteveInSA <sdh>
Component: kernelAssignee: Kernel Maintainer List <kernel-maint>
Status: CLOSED INSUFFICIENT_DATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 20CC: gansalmon, handyj, itamar, jonathan, kernel-maint, madhu.chinakonda, mchehab, sdh
Target Milestone: ---Flags: kernel-team: needinfo?
Target Release: ---   
Hardware: x86_64   
OS: Unspecified   
URL: https://retrace.fedoraproject.org/faf/reports/bthash/8fbc3bef07838394a898e3edb3452b47e85a92ab
Whiteboard: abrt_hash:755ed917d871c8ae8d1a553a850b5c6c2669d835
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-04-28 18:25:49 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:
Attachments:
Description Flags
File: dmesg none

Description SteveInSA 2015-01-25 16:14:02 UTC 
Description of problem:
I first observed that my server was about 20% slower with Hyperthreading turned on.  It is a 2P Intel E5-2680 v3 with DDR4 memory.  Checking logs showed a recurring crash in all Fedora 20 and 21 kernels to date.  I cannot tell if this is an OS bug or a SuperMicro bios problem.  The motherboard is a Supermicro X10DRi, BIOS 1.0b dated 09/17/2014.  Dmesg reports the bios is "broken" in Fedora 21 and warns that performance will be degraded.  I plan to file this bug with Fedora 20 just to document it and will follow it with a bug report using Fedora 21.

Reproducing it is easy - just boot the system and ABRT reports a kernel crash and recovery.  It consistently happens each time the system is booted, with or without Hyperthreading (24 or 48 cpus).

Additional info:
reporter:       libreport-2.2.3
WARNING: CPU: 2 PID: 705 at drivers/dma/ioat/dca.c:697 ioat3_dca_init+0x19c/0x1b0 [ioatdma]()
ioatdma 0000:00:04.0: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA
Modules linked in: ioatdma(+) lpc_ich mei shpchp i2c_i801 mfd_core dca wmi tpm_tis tpm ipmi_si ipmi_msghandler acpi_power_meter acpi_pad nfsd auth_rpcgss nfs_acl lockd sunrpc ast i2c_algo_bit drm_kms_helper ttm drm
CPU: 2 PID: 705 Comm: systemd-udevd Not tainted 3.17.8-200.fc20.x86_64 #1
Hardware name: Supermicro X10DRi/X10DRi, BIOS 1.0b 09/17/2014
 0000000000000000 00000000d37d741f ffff881052f57a10 ffffffff81728f6c
 ffff881052f57a58 ffff881052f57a48 ffffffff81092e7d ffff88085389f0b0
 ffff881053705000 ffff88084e254500 ffffc90016ac0100 0000000000000100
Call Trace:
 [<ffffffff81728f6c>] dump_stack+0x45/0x56
 [<ffffffff81092e7d>] warn_slowpath_common+0x7d/0xa0
 [<ffffffff81092f74>] warn_slowpath_fmt_taint+0x54/0x70
 [<ffffffffa01fdc5c>] ioat3_dca_init+0x19c/0x1b0 [ioatdma]
 [<ffffffffa01fd056>] ioat3_dma_probe+0x3a6/0x400 [ioatdma]
 [<ffffffffa01f518e>] ioat_pci_probe+0x11e/0x1b0 [ioatdma]
 [<ffffffff813b2db5>] local_pci_probe+0x45/0xa0
 [<ffffffff813b4109>] pci_device_probe+0xf9/0x150
 [<ffffffff814855cd>] driver_probe_device+0x12d/0x3d0
 [<ffffffff81485943>] __driver_attach+0x93/0xa0
 [<ffffffff814858b0>] ? __device_attach+0x40/0x40
 [<ffffffff81483473>] bus_for_each_dev+0x73/0xc0
 [<ffffffff81484fce>] driver_attach+0x1e/0x20
 [<ffffffff81484bb0>] bus_add_driver+0x180/0x250
 [<ffffffffa0189000>] ? 0xffffffffa0189000
 [<ffffffff81486124>] driver_register+0x64/0xf0
 [<ffffffff813b274c>] __pci_register_driver+0x4c/0x50
 [<ffffffffa0189089>] ioat_init_module+0x89/0x1000 [ioatdma]
 [<ffffffff81002144>] do_one_initcall+0xd4/0x210
 [<ffffffff811e1d8f>] ? kfree+0xff/0x140
 [<ffffffff811c8412>] ? __vunmap+0xb2/0x100
 [<ffffffff81110895>] load_module+0x1bf5/0x2600
 [<ffffffff8110c610>] ? store_uevent+0x70/0x70
 [<ffffffff812063f0>] ? kernel_read+0x50/0x80
 [<ffffffff81111456>] SyS_finit_module+0xa6/0xd0
 [<ffffffff81730629>] system_call_fastpath+0x16/0x1b
Comment 1 SteveInSA 2015-01-25 16:14:06 UTC 
Created attachment 983967 [details]
File: dmesg
Comment 2 Josh Boyer 2015-01-26 13:20:07 UTC 
*** Bug 1185663 has been marked as a duplicate of this bug. ***
Comment 3 Fedora Kernel Team 2015-02-24 16:25:18 UTC 
*********** MASS BUG UPDATE **************

We apologize for the inconvenience.  There is a large number of bugs to go through and several of them have gone stale.  Due to this, we are doing a mass bug update across all of the Fedora 20 kernel bugs.

Fedora 20 has now been rebased to 3.18.7-100.fc20.  Please test this kernel update (or newer) and let us know if you issue has been resolved or if it is still present with the newer kernel.

If you have moved on to Fedora 21, and are still experiencing this issue, please change the version to Fedora 21.

If you experience different issues, please open a new bug report for those.
Comment 4 Fedora Kernel Team 2015-04-28 18:25:49 UTC 
*********** MASS BUG UPDATE **************
This bug is being closed with INSUFFICIENT_DATA as there has not been a response in over 4 weeks. If you are still experiencing this issue, please reopen and attach the relevant data from the latest kernel you are running and any data that might have been requested previously.
Comment 5 John 2015-05-13 14:36:27 UTC 
Description of problem:
Whenever I reboot, I get the crash.

Version-Release number of selected component:
kernel

Additional info:
reporter:       libreport-2.3.0
cmdline:        BOOT_IMAGE=/vmlinuz-3.19.5-200.fc21.x86_64 root=/dev/mapper/fedora_dollar-root ro rd.lvm.lv=fedora_dollar/swap rd.lvm.lv=fedora_dollar/root rhgb quiet LANG=en_US.UTF-8
kernel:         3.19.5-200.fc21.x86_64
runlevel:       unknown
type:           Kerneloops

Truncated backtrace:
WARNING: CPU: 8 PID: 1137 at drivers/dma/ioat/dca.c:698 ioat3_dca_init+0x19a/0x1b7 [ioatdma]()
ioatdma 0000:00:04.0: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA
Modules linked in: i2c_i801 mfd_core acpi_cpufreq(-) pcc_cpufreq(-) ioatdma(+) soundcore tpm_tis tpm shpchp acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc nouveau video mxm_wmi drm_kms_helper ttm igb drm ptp uas pps_core dca usb_storage i2c_algo_bit wmi
CPU: 8 PID: 1137 Comm: systemd-udevd Not tainted 3.19.5-200.fc21.x86_64 #1
Hardware name: Supermicro SYS-7048AT-WDEV-01-CS058/X10DAI, BIOS 1.0b 10/16/2014
 0000000000000000 00000000f7a82bf9 ffff880849127988 ffffffff8176ead5
 0000000000000000 ffff8808491279e0 ffff8808491279c8 ffffffff8109bc1a
 0000000000000000 ffff88085ad35000 ffff88085ad03f30 ffff880854bcaf80
Call Trace:
 [<ffffffff8176ead5>] dump_stack+0x45/0x57
 [<ffffffff8109bc1a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8109bd0e>] warn_slowpath_fmt_taint+0x4e/0x70
 [<ffffffffa000a811>] ? alloc_dca_provider+0x21/0x40 [dca]
 [<ffffffffa0523e3a>] ioat3_dca_init+0x19a/0x1b7 [ioatdma]
 [<ffffffffa05231ae>] ioat3_dma_probe+0x35e/0x450 [ioatdma]
 [<ffffffffa051b18e>] ioat_pci_probe+0x11e/0x1b0 [ioatdma]
 [<ffffffff813de7e5>] local_pci_probe+0x45/0xa0
 [<ffffffff81298a22>] ? sysfs_do_create_link_sd.isra.2+0x72/0xc0
 [<ffffffff813dfb49>] pci_device_probe+0xf9/0x150
 [<ffffffff814c9e13>] driver_probe_device+0xa3/0x400
 [<ffffffff814ca24b>] __driver_attach+0x9b/0xa0
 [<ffffffff814ca1b0>] ? __device_attach+0x40/0x40
 [<ffffffff814c7ad3>] bus_for_each_dev+0x73/0xc0
 [<ffffffff814c987e>] driver_attach+0x1e/0x20
 [<ffffffff814c9430>] bus_add_driver+0x180/0x250
 [<ffffffffa0616000>] ? 0xffffffffa0616000
 [<ffffffff814caa44>] driver_register+0x64/0xf0
 [<ffffffff813de07c>] __pci_register_driver+0x4c/0x50
 [<ffffffffa061608f>] ioat_init_module+0x8f/0x1000 [ioatdma]
 [<ffffffff81002148>] do_one_initcall+0xd8/0x210
 [<ffffffff811fbb59>] ? kmem_cache_alloc_trace+0x1a9/0x230
 [<ffffffff8111f053>] ? load_module+0x2203/0x2800
 [<ffffffff8111f08b>] load_module+0x223b/0x2800
 [<ffffffff8111a810>] ? store_uevent+0x70/0x70
 [<ffffffff8111f71d>] SyS_init_module+0xcd/0x120
 [<ffffffff817752c9>] system_call_fastpath+0x12/0x17
Comment 6 John 2015-05-15 13:46:17 UTC 
Description of problem:
When I rebooted, the error occured.

Version-Release number of selected component:
kernel

Additional info:
reporter:       libreport-2.3.0
cmdline:        BOOT_IMAGE=/vmlinuz-3.19.5-200.fc21.x86_64 root=/dev/mapper/fedora_dollar-root ro rd.lvm.lv=fedora_dollar/swap rd.lvm.lv=fedora_dollar/root rhgb quiet LANG=en_US.UTF-8
kernel:         3.19.5-200.fc21.x86_64
runlevel:       unknown
type:           Kerneloops

Truncated backtrace:
WARNING: CPU: 0 PID: 462 at drivers/dma/ioat/dca.c:698 ioat3_dca_init+0x19a/0x1b7 [ioatdma]()
ioatdma 0000:00:04.0: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA
Modules linked in: lpc_ich ioatdma(+) i2c_i801 shpchp soundcore mfd_core tpm_tis tpm acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc nouveau video mxm_wmi drm_kms_helper ttm igb drm ptp pps_core dca i2c_algo_bit wmi uas usb_storage
CPU: 0 PID: 462 Comm: kworker/0:2 Not tainted 3.19.5-200.fc21.x86_64 #1
Hardware name: Supermicro SYS-7048AT-WDEV-01-CS058/X10DAI, BIOS 1.0b 10/16/2014
Workqueue: events work_for_cpu_fn
 0000000000000000 000000009da83b5a ffff880858f7bc08 ffffffff8176ead5
 0000000000000000 ffff880858f7bc60 ffff880858f7bc48 ffffffff8109bc1a
 0000000000000000 ffff88085acd5000 ffff88085ac8cf30 ffff88085812a680
Call Trace:
 [<ffffffff8176ead5>] dump_stack+0x45/0x57
 [<ffffffff8109bc1a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8109bd0e>] warn_slowpath_fmt_taint+0x4e/0x70
 [<ffffffffa0035811>] ? alloc_dca_provider+0x21/0x40 [dca]
 [<ffffffffa0238e3a>] ioat3_dca_init+0x19a/0x1b7 [ioatdma]
 [<ffffffffa02381ae>] ioat3_dma_probe+0x35e/0x450 [ioatdma]
 [<ffffffffa023018e>] ioat_pci_probe+0x11e/0x1b0 [ioatdma]
 [<ffffffff813de7e5>] local_pci_probe+0x45/0xa0
 [<ffffffff810b15e8>] work_for_cpu_fn+0x18/0x30
 [<ffffffff810b487c>] process_one_work+0x14c/0x3f0
 [<ffffffff810b545c>] worker_thread+0x1bc/0x470
 [<ffffffff810b52a0>] ? rescuer_thread+0x300/0x300
 [<ffffffff810ba548>] kthread+0xd8/0xf0
 [<ffffffff810ba470>] ? kthread_create_on_node+0x1b0/0x1b0
 [<ffffffff81775218>] ret_from_fork+0x58/0x90
 [<ffffffff810ba470>] ? kthread_create_on_node+0x1b0/0x1b0
Comment 7 John 2015-05-26 19:15:29 UTC 
Description of problem:
reboot and error occuured.

Version-Release number of selected component:
kernel

Additional info:
reporter:       libreport-2.3.0
cmdline:        BOOT_IMAGE=/vmlinuz-3.19.7-200.fc21.x86_64 root=/dev/mapper/fedora_dollar-root ro rd.lvm.lv=fedora_dollar/swap rd.lvm.lv=fedora_dollar/root rhgb quiet LANG=en_US.UTF-8
kernel:         3.19.7-200.fc21.x86_64
runlevel:       unknown
type:           Kerneloops

Truncated backtrace:
WARNING: CPU: 3 PID: 1079 at drivers/dma/ioat/dca.c:698 ioat3_dca_init+0x19a/0x1b7 [ioatdma]()
ioatdma 0000:00:04.0: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA
Modules linked in: shpchp(+) mfd_core soundcore(+) tpm(+) pcc_cpufreq(-) ioatdma(+) acpi_cpufreq(-) acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc nouveau video mxm_wmi drm_kms_helper ttm igb drm ptp pps_core dca i2c_algo_bit wmi uas usb_storage
CPU: 3 PID: 1079 Comm: systemd-udevd Not tainted 3.19.7-200.fc21.x86_64 #1
Hardware name: Supermicro SYS-7048AT-WDEV-01-CS058/X10DAI, BIOS 1.0b 10/16/2014
 0000000000000000 000000001bcc3c81 ffff88085964b988 ffffffff8176f1f7
 0000000000000000 ffff88085964b9e0 ffff88085964b9c8 ffffffff8109bc1a
 0000000000000000 ffff88085ac95000 ffff88085ac43f30 ffff88084da6c800
Call Trace:
 [<ffffffff8176f1f7>] dump_stack+0x45/0x57
 [<ffffffff8109bc1a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff8109bd0e>] warn_slowpath_fmt_taint+0x4e/0x70
 [<ffffffffa0035811>] ? alloc_dca_provider+0x21/0x40 [dca]
 [<ffffffffa05d3e3a>] ioat3_dca_init+0x19a/0x1b7 [ioatdma]
 [<ffffffffa05d31ae>] ioat3_dma_probe+0x35e/0x450 [ioatdma]
 [<ffffffffa05cb18e>] ioat_pci_probe+0x11e/0x1b0 [ioatdma]
 [<ffffffff813dee85>] local_pci_probe+0x45/0xa0
 [<ffffffff81299062>] ? sysfs_do_create_link_sd.isra.2+0x72/0xc0
 [<ffffffff813e01e9>] pci_device_probe+0xf9/0x150
 [<ffffffff814ca4b3>] driver_probe_device+0xa3/0x400
 [<ffffffff814ca8eb>] __driver_attach+0x9b/0xa0
 [<ffffffff814ca850>] ? __device_attach+0x40/0x40
 [<ffffffff814c8163>] bus_for_each_dev+0x73/0xc0
 [<ffffffff814c9f1e>] driver_attach+0x1e/0x20
 [<ffffffff814c9ad0>] bus_add_driver+0x180/0x250
 [<ffffffffa05dc000>] ? 0xffffffffa05dc000
 [<ffffffff814cb0e4>] driver_register+0x64/0xf0
 [<ffffffff813de71c>] __pci_register_driver+0x4c/0x50
 [<ffffffffa05dc08f>] ioat_init_module+0x8f/0x1000 [ioatdma]
 [<ffffffff81002148>] do_one_initcall+0xd8/0x210
 [<ffffffff811fc0f9>] ? kmem_cache_alloc_trace+0x1a9/0x230
 [<ffffffff8111f0d3>] ? load_module+0x2203/0x2800
 [<ffffffff8111f10b>] load_module+0x223b/0x2800
 [<ffffffff8111a890>] ? store_uevent+0x70/0x70
 [<ffffffff8111f79d>] SyS_init_module+0xcd/0x120
 [<ffffffff81775a09>] system_call_fastpath+0x12/0x17
Comment 8 John 2015-09-18 14:23:57 UTC 
Description of problem:
rebooted after kernel update.

Version-Release number of selected component:
kernel

Additional info:
reporter:       libreport-2.3.0
cmdline:        BOOT_IMAGE=/vmlinuz-4.1.6-100.fc21.x86_64 root=/dev/mapper/fedora_dollar-root ro rd.lvm.lv=fedora_dollar/swap rd.lvm.lv=fedora_dollar/root rhgb quiet LANG=en_US.UTF-8
kernel:         4.1.6-100.fc21.x86_64
runlevel:       unknown
type:           Kerneloops

Truncated backtrace:
WARNING: CPU: 0 PID: 4 at drivers/dma/ioat/dca.c:694 ioat3_dca_init+0x19a/0x1b7 [ioatdma]()
ioatdma 0000:00:04.0: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA
Modules linked in: i2c_i801(+) ioatdma(+) shpchp soundcore tpm acpi_cpufreq(-) pcc_cpufreq(-) acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc nouveau video mxm_wmi drm_kms_helper igb ttm drm ptp pps_core dca i2c_algo_bit wmi uas usb_storage
CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted 4.1.6-100.fc21.x86_64 #1
Hardware name: Supermicro SYS-7048AT-WDEV-01-CS058/X10DAI, BIOS 1.0b 10/16/2014
Workqueue: events work_for_cpu_fn
 0000000000000000 00000000b50bc1bc ffff88085bed3c08 ffffffff817940d5
 0000000000000000 ffff88085bed3c60 ffff88085bed3c48 ffffffff810a163a
 0000000000000000 ffff88105af6d000 ffff88105af81090 ffff880859982680
Call Trace:
 [<ffffffff817940d5>] dump_stack+0x45/0x57
 [<ffffffff810a163a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff810a172e>] warn_slowpath_fmt_taint+0x4e/0x70
 [<ffffffffa0035811>] ? alloc_dca_provider+0x21/0x40 [dca]
 [<ffffffffa044beaa>] ioat3_dca_init+0x19a/0x1b7 [ioatdma]
 [<ffffffffa044b1fe>] ioat3_dma_probe+0x35e/0x470 [ioatdma]
 [<ffffffffa044318e>] ioat_pci_probe+0x11e/0x1b0 [ioatdma]
 [<ffffffff813f6955>] local_pci_probe+0x45/0xa0
 [<ffffffff810b7198>] work_for_cpu_fn+0x18/0x30
 [<ffffffff810ba5ac>] process_one_work+0x14c/0x400
 [<ffffffff810bb1ac>] worker_thread+0x1bc/0x490
 [<ffffffff810baff0>] ? rescuer_thread+0x300/0x300
 [<ffffffff810c06c8>] kthread+0xd8/0xf0
 [<ffffffff810c05f0>] ? kthread_create_on_node+0x1b0/0x1b0
 [<ffffffff8179ada2>] ret_from_fork+0x42/0x70
 [<ffffffff810c05f0>] ? kthread_create_on_node+0x1b0/0x1b0
Comment 9 John 2015-11-30 14:38:07 UTC 
Description of problem:
I rebooted, not sure what caused the problem.

Version-Release number of selected component:
kernel

Additional info:
reporter:       libreport-2.3.0
cmdline:        BOOT_IMAGE=/vmlinuz-4.1.13-100.fc21.x86_64 root=/dev/mapper/fedora_dollar-root ro rd.lvm.lv=fedora_dollar/swap rd.lvm.lv=fedora_dollar/root rhgb quiet LANG=en_US.UTF-8
kernel:         4.1.13-100.fc21.x86_64
runlevel:       unknown
type:           Kerneloops

Truncated backtrace:
WARNING: CPU: 0 PID: 1085 at drivers/dma/ioat/dca.c:694 ioat3_dca_init+0x19a/0x1b7 [ioatdma]()
ioatdma 0000:00:04.0: APICID_TAG_MAP set incorrectly by BIOS, disabling DCA
Modules linked in: lpc_ich ioatdma(+) shpchp soundcore mfd_core tpm_tis tpm acpi_cpufreq(-) pcc_cpufreq(-) acpi_power_meter nfsd auth_rpcgss nfs_acl lockd grace sunrpc nouveau video mxm_wmi drm_kms_helper ttm igb drm ptp pps_core dca i2c_algo_bit wmi uas usb_storage
CPU: 0 PID: 1085 Comm: systemd-udevd Not tainted 4.1.13-100.fc21.x86_64 #1
Hardware name: Supermicro SYS-7048AT-WDEV-01-CS058/X10DAI, BIOS 1.0b 10/16/2014
 0000000000000000 0000000037cd05cb ffff880855a33908 ffffffff81793645
 0000000000000000 ffff880855a33960 ffff880855a33948 ffffffff810a165a
 0000000000000000 ffff88085a865000 ffff88085a84c090 ffff880857e3bd00
Call Trace:
 [<ffffffff81793645>] dump_stack+0x45/0x57
 [<ffffffff810a165a>] warn_slowpath_common+0x8a/0xc0
 [<ffffffff810a174e>] warn_slowpath_fmt_taint+0x4e/0x70
 [<ffffffffa0035811>] ? alloc_dca_provider+0x21/0x40 [dca]
 [<ffffffffa03e9eaa>] ioat3_dca_init+0x19a/0x1b7 [ioatdma]
 [<ffffffffa03e91fe>] ioat3_dma_probe+0x35e/0x470 [ioatdma]
 [<ffffffffa03e118e>] ioat_pci_probe+0x11e/0x1b0 [ioatdma]
 [<ffffffff813f7255>] local_pci_probe+0x45/0xa0
 [<ffffffff812a90e2>] ? sysfs_do_create_link_sd.isra.2+0x72/0xc0
 [<ffffffff813f85b9>] pci_device_probe+0xf9/0x150
 [<ffffffff814e8379>] driver_probe_device+0x209/0x4b0
 [<ffffffff814e86fb>] __driver_attach+0x9b/0xa0
 [<ffffffff814e8660>] ? __device_attach+0x40/0x40
 [<ffffffff814e5e93>] bus_for_each_dev+0x73/0xc0
 [<ffffffff814e7c4e>] driver_attach+0x1e/0x20
 [<ffffffff814e7800>] bus_add_driver+0x180/0x250
 [<ffffffffa025c000>] ? 0xffffffffa025c000
 [<ffffffff814e8ef4>] driver_register+0x64/0xf0
 [<ffffffff813f6adc>] __pci_register_driver+0x4c/0x50
 [<ffffffffa025c08f>] ioat_init_module+0x8f/0x1000 [ioatdma]
 [<ffffffff81002148>] do_one_initcall+0xd8/0x210
 [<ffffffff81209609>] ? kmem_cache_alloc_trace+0x1a9/0x230
 [<ffffffff8179279c>] ? do_init_module+0x28/0x1cc
 [<ffffffff817927d5>] do_init_module+0x61/0x1cc
 [<ffffffff811270eb>] load_module+0x20db/0x2550
 [<ffffffff811229c0>] ? store_uevent+0x70/0x70
 [<ffffffff811eaf6c>] ? vmap_page_range_noflush+0x22c/0x350
 [<ffffffff811276a5>] SyS_init_module+0x145/0x190
 [<ffffffff81799f2e>] system_call_fastpath+0x12/0x71