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Date: Sun, 15 Mar 2009 21:04:21 +0900
From: Yoshiharu Mori <ymori4480@...il.com>
To: linux-kernel@...r.kernel.org
Subject: DMAR ERROR by nVidia video card
Hi
I enabled DMAR by kernel parameter, and started X windows.
The following error message is reported forever.
Is this driver's issue?
Mar 15 19:50:44 localhost kernel: IRQ 16/nvidia: IRQF_DISABLED is not
guaranteed on shared IRQs
Mar 15 19:50:45 localhost kernel: DMAR:[DMA Read] Request device
[02:00.0] fault addr 0
Mar 15 19:50:45 localhost kernel: DMAR:[fault reason 06] PTE Read
access is not set
Mar 15 19:50:45 localhost acpid: client connected from 4682[0:0]
Mar 15 19:50:45 localhost kernel: DMAR:[DMA Read] Request device
[02:00.0] fault addr 0
Mar 15 19:50:45 localhost kernel: DMAR:[fault reason 06] PTE Read
access is not set
Mar 15 19:50:45 localhost kernel: DMAR:[DMA Read] Request device
[02:00.0] fault addr 0
Mar 15 19:50:45 localhost kernel: DMAR:[fault reason 06] PTE Read
access is not set
...continue
-- my env --
Distribution :Fedora 10
kernel :2.6.29-rc8
kernel parameter:intel_iommu=igfx_off intel_iommu=on
nVidia driver :NVIDIA-Linux-x86_64-180.29-pkg2.run
#lspci
..
02:00.0 VGA compatible controller: nVidia Corporation GeForce 8400 GS (rev a1)
..
#cat /proc/interrupts
CPU0 CPU1 CPU2 CPU3 CPU4 CPU5
CPU6 CPU7
0: 150 0 0 115006 0 0
0 0 IO-APIC-edge timer
1: 0 0 0 2 0 0
0 0 IO-APIC-edge i8042
3: 0 0 0 2 0 0
0 0 IO-APIC-edge
4: 0 0 0 278 0 0
0 0 IO-APIC-edge serial
8: 0 0 0 0 0 0
0 0 IO-APIC-edge rtc0
9: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi acpi
12: 0 0 0 4 0 0
0 0 IO-APIC-edge i8042
16: 29 0 0 0 0 115
20 0 IO-APIC-fasteoi sata_sil24, nvidia
17: 0 0 0 0 0 12
0 0 IO-APIC-fasteoi firewire_ohci
20: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi ehci_hcd:usb2,
uhci_hcd:usb3, uhci_hcd:usb6
21: 0 0 0 72 0 184
894 0 IO-APIC-fasteoi uhci_hcd:usb4, uhci_hcd:usb7
22: 0 0 281 0 0 42
0 0 IO-APIC-fasteoi ehci_hcd:usb1,
uhci_hcd:usb8, HDA Intel
23: 0 0 0 0 0 0
0 0 IO-APIC-fasteoi uhci_hcd:usb5
24: 0 0 0 0 231 0
0 0 DMAR_MSI-edge dmar0
31: 1 2939 9024 0 0 0
0 0 PCI-MSI-edge ahci
50: 0 0 21 0 0 0
2187 0 PCI-MSI-edge eth2-rx-0
51: 0 0 0 35 0 971163
0 0 PCI-MSI-edge eth2-tx-0
52: 0 0 0 3 0 0
0 0 PCI-MSI-edge eth2
NMI: 0 0 0 0 0 0
0 0 Non-maskable interrupts
LOC: 22415 15089 20532 5501 11525 14125
17015 11666 Local timer interrupts
RES: 3397 1695 2233 1548 2027 1919
2824 2388 Rescheduling interrupts
CAL: 170 183 170 199 217 198
225 227 Function call interrupts
TLB: 79 100 84 112 459 360
431 499 TLB shootdowns
TRM: 0 0 0 0 0 0
0 0 Thermal event interrupts
THR: 0 0 0 0 0 0
0 0 Threshold APIC interrupts
SPU: 0 0 0 0 0 0
0 0 Spurious interrupts
ERR: 0
MIS: 0
--
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