Hello!
The following happens with Linux 4.4.1 during boot on an MSI A78M-E35
board. Additionally, I attached the complete dmesg.
[ 1.228987] ------------[ cut here ]------------
[ 1.228992] WARNING: CPU: 0 PID: 1 at
../drivers/iommu/amd_iommu_init.c:2301
amd_iommu_pc_get_set_reg_val+0xa8/0xe0()
[ 1.228993] Modules linked in:
[ 1.228997] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.4.1-14-default #1
[ 1.228998] Hardware name: ARLT Computer-Produkte GmbH ARLT Mr.
Whisper Ultimate II R1 (3080527A-U140-V30.5)/A78M-E35 (MS-7721), BIOS
V30.5 10/20/2014
[ 1.229000] ffffffff819a7f28 ffff88017ed7bd30 ffffffff812f7c89
0000000000000000
[ 1.229002] ffff88017ed7bd68 ffffffff81066ae6 ffff88017ed4a000
0000000000000040
[ 1.229004] 0000000000000000 ffffffff81d3424e 0000000000000007
ffff88017ed7bd78
[ 1.229006] Call Trace:
[ 1.229015] [<ffffffff81009075>] try_stack_unwind+0x175/0x190
[ 1.229021] [<ffffffff81007fa4>] dump_trace+0x64/0x3b0
[ 1.229024] [<ffffffff810090dd>] show_trace_log_lvl+0x4d/0x60
[ 1.229026] [<ffffffff81008402>] show_stack_log_lvl+0x112/0x180
[ 1.229029] [<ffffffff81009135>] show_stack+0x25/0x50
[ 1.229032] [<ffffffff812f7c89>] dump_stack+0x4b/0x72
[ 1.229036] [<ffffffff81066ae6>] warn_slowpath_common+0x86/0xc0
[ 1.229039] [<ffffffff81066bda>] warn_slowpath_null+0x1a/0x20
[ 1.229041] [<ffffffff8140acf8>] amd_iommu_pc_get_set_reg_val+0xa8/0xe0
[ 1.229045] [<ffffffff81d6f60d>] iommu_go_to_state+0x501/0x13c4
[ 1.229048] [<ffffffff81d70543>] amd_iommu_init+0x13/0x253
[ 1.229051] [<ffffffff81d34260>] pci_iommu_init+0x12/0x3c
[ 1.229053] [<ffffffff81000403>] do_one_initcall+0xd3/0x1f0
[ 1.229057] [<ffffffff81d2f079>] kernel_init_freeable+0x16d/0x1fa
[ 1.229060] [<ffffffff815fb2ae>] kernel_init+0xe/0xe0
[ 1.229064] [<ffffffff8160736f>] ret_from_fork+0x3f/0x70
[ 1.231707] DWARF2 unwinder stuck at ret_from_fork+0x3f/0x70
[ 1.231709] Leftover inexact backtrace:
[ 1.231713] [<ffffffff815fb2a0>] ? rest_init+0x90/0x90
[ 1.231718] ---[ end trace 100b826816268f19 ]---
[ 1.231719] AMD-Vi: Unable to write to IOMMU perf counter.
What does this mean?
Thanks,
regards,
Andreas Hartmann
lspci -v
00:00.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1422
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0
00:00.2 IOMMU: Advanced Micro Devices, Inc. [AMD] Device 1423
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0, IRQ 24
Capabilities: [40] Secure device <?>
Capabilities: [54] MSI: Enable+ Count=1/4 Maskable- 64bit+
Capabilities: [64] HyperTransport: MSI Mapping Enable+ Fixed+
00:01.0 VGA compatible controller: Advanced Micro Devices, Inc.
[AMD/ATI] Kaveri (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0, IRQ 34
Memory at c0000000 (64-bit, prefetchable) [size=256M]
Memory at d0000000 (64-bit, prefetchable) [size=8M]
I/O ports at f000 [size=256]
Memory at feb00000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at feb40000 [disabled] [size=128K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Capabilities: [270] #19
Capabilities: [2b0] Address Translation Service (ATS)
Capabilities: [2c0] #13
Capabilities: [2d0] #1b
Kernel driver in use: radeon
Kernel modules: radeon, amdgpu
00:01.1 Audio device: Advanced Micro Devices, Inc. [AMD/ATI] Device 1308
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0, IRQ 46
Memory at feb64000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [48] Vendor Specific Information: Len=08 <?>
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [a0] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:02.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1424
Flags: fast devsel
00:03.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1424
Flags: fast devsel
00:03.1 PCI bridge: Advanced Micro Devices, Inc. [AMD] Device 1426
(prog-if 00 [Normal decode])
Flags: bus master, fast devsel, latency 0
Bus: primary=00, secondary=01, subordinate=01, sec-latency=0
I/O behind bridge: 0000e000-0000efff
Memory behind bridge: fea00000-feafffff
Prefetchable memory behind bridge: 00000000d0800000-00000000d08fffff
Capabilities: [50] Power Management version 3
Capabilities: [58] Express Root Port (Slot+), MSI 00
Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
Capabilities: [b0] Subsystem: Micro-Star International Co., Ltd.
Device 7721
Capabilities: [b8] HyperTransport: MSI Mapping Enable+ Fixed+
Capabilities: [100] Vendor Specific Information: ID=0001 Rev=1
Len=010 <?>
Capabilities: [270] #19
Kernel driver in use: pcieport
Kernel modules: shpchp
00:04.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 1424
Flags: fast devsel
00:10.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
Controller (rev 09) (prog-if 30 [XHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0
Memory at feb6a000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [50] Power Management version 3
Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
Capabilities: [a0] Express Root Complex Integrated Endpoint, MSI 00
Capabilities: [100] Latency Tolerance Reporting
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
00:10.1 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB XHCI
Controller (rev 09) (prog-if 30 [XHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0
Memory at feb68000 (64-bit, non-prefetchable) [size=8K]
Capabilities: [50] Power Management version 3
Capabilities: [70] MSI: Enable- Count=1/8 Maskable- 64bit+
Capabilities: [90] MSI-X: Enable+ Count=8 Masked-
Capabilities: [a0] Express Root Complex Integrated Endpoint, MSI 00
Kernel driver in use: xhci_hcd
Kernel modules: xhci_pci
00:11.0 SATA controller: Advanced Micro Devices, Inc. [AMD] FCH SATA
Controller [AHCI mode] (rev 40) (prog-if 01 [AHCI 1.0])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 25
I/O ports at f140 [size=8]
I/O ports at f130 [size=4]
I/O ports at f120 [size=8]
I/O ports at f110 [size=4]
I/O ports at f100 [size=16]
Memory at feb71000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [50] MSI: Enable+ Count=8/8 Maskable- 64bit+
Capabilities: [70] SATA HBA v1.0
Kernel driver in use: ahci
00:12.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI
Controller (rev 11) (prog-if 10 [OHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
Memory at feb70000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci
00:12.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI
Controller (rev 11) (prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
Memory at feb6f000 (32-bit, non-prefetchable) [size=256]
Capabilities: [c0] Power Management version 2
Capabilities: [e4] Debug port: BAR=1 offset=00e0
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:13.0 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI
Controller (rev 11) (prog-if 10 [OHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
Memory at feb6e000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci
00:13.2 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB EHCI
Controller (rev 11) (prog-if 20 [EHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 17
Memory at feb6d000 (32-bit, non-prefetchable) [size=256]
Capabilities: [c0] Power Management version 2
Capabilities: [e4] Debug port: BAR=1 offset=00e0
Kernel driver in use: ehci-pci
Kernel modules: ehci_pci
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller
(rev 16)
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: 66MHz, medium devsel
Kernel driver in use: piix4_smbus
Kernel modules: i2c_piix4
00:14.2 Audio device: Advanced Micro Devices, Inc. [AMD] FCH Azalia
Controller (rev 01)
Subsystem: Micro-Star International Co., Ltd. Device d721
Flags: bus master, slow devsel, latency 32, IRQ 16
Memory at feb60000 (64-bit, non-prefetchable) [size=16K]
Capabilities: [50] Power Management version 2
Kernel driver in use: snd_hda_intel
Kernel modules: snd_hda_intel
00:14.3 ISA bridge: Advanced Micro Devices, Inc. [AMD] FCH LPC Bridge
(rev 11)
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 0
00:14.4 PCI bridge: Advanced Micro Devices, Inc. [AMD] FCH PCI Bridge
(rev 40) (prog-if 01 [Subtractive decode])
Flags: bus master, VGA palette snoop, 66MHz, medium devsel,
latency 64
Bus: primary=00, secondary=02, subordinate=02, sec-latency=64
00:14.5 USB controller: Advanced Micro Devices, Inc. [AMD] FCH USB OHCI
Controller (rev 11) (prog-if 10 [OHCI])
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, 66MHz, medium devsel, latency 32, IRQ 18
Memory at feb6c000 (32-bit, non-prefetchable) [size=4K]
Kernel driver in use: ohci-pci
Kernel modules: ohci_pci
00:18.0 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 141a
Flags: fast devsel
00:18.1 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 141b
Flags: fast devsel
00:18.2 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 141c
Flags: fast devsel
Kernel modules: amd64_edac_mod
00:18.3 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 141d
Flags: fast devsel
Capabilities: [f0] Secure device <?>
Kernel driver in use: k10temp
Kernel modules: k10temp
00:18.4 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 141e
Flags: fast devsel
Kernel driver in use: fam15h_power
Kernel modules: fam15h_power
00:18.5 Host bridge: Advanced Micro Devices, Inc. [AMD] Device 141f
Flags: fast devsel
01:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 0c)
Subsystem: Micro-Star International Co., Ltd. Device 7721
Flags: bus master, fast devsel, latency 0, IRQ 40
I/O ports at e000 [size=256]
Memory at fea00000 (64-bit, non-prefetchable) [size=4K]
Memory at d0800000 (64-bit, prefetchable) [size=16K]
Capabilities: [40] Power Management version 3
Capabilities: [50] MSI: Enable+ Count=1/1 Maskable- 64bit+
Capabilities: [70] Express Endpoint, MSI 01
Capabilities: [b0] MSI-X: Enable- Count=4 Masked-
Capabilities: [d0] Vital Product Data
Capabilities: [100] Advanced Error Reporting
Capabilities: [140] Virtual Channel
Capabilities: [160] Device Serial Number 01-00-00-00-68-4c-e0-00
Capabilities: [170] Latency Tolerance Reporting
Kernel driver in use: r8168
Kernel modules: r8169, r8168
lscpu
Architecture: x86_64
CPU op-mode(s): 32-bit, 64-bit
Byte Order: Little Endian
CPU(s): 4
On-line CPU(s) list: 0-3
Thread(s) per core: 2
Core(s) per socket: 2
Socket(s): 1
NUMA node(s): 1
Vendor ID: AuthenticAMD
CPU family: 21
Model: 48
Model name: AMD A10-7800 Radeon R7, 12 Compute Cores 4C+8G
Stepping: 1
CPU MHz: 1400.000
BogoMIPS: 6999.61
Virtualization: AMD-V
L1d cache: 16K
L1i cache: 96K
L2 cache: 2048K
NUMA node0 CPU(s): 0-3
Attachment:
dmesg.xz
Description: application/xz
