Hardware:
CPU: AMD A6-6400K
Mainboard: MSI A78M-E35
Using CentOS 5.11 kernel 2.6.18-404.el5
Problem:
Shutdown process can't complete, it stuck and give an error message below:
AMD IOMMU: Event logged [INVALID_DEVICE_REQUEST device=00:14.0 address=0x000000fdf9103d00 flags=0x0600]
Device 00:14.0 info:
00:14.0 SMBus: Advanced Micro Devices, Inc. [AMD] FCH SMBus Controller (rev 16)
Subsystem: Micro-Star International Co., Ltd. [MSI] Device 7721
Flags: 66MHz, medium devsel
Kernel driver in use: piix4_smbus
Kernel modules: i2c-piix4
How can i fixed this?
Thanks.
Shutdown problem on AMD A78 chipset
Re: Shutdown problem on AMD A78 chipset
I borrow Biostar Hi-Fi A85S from a computer store.
On bios setting: chipset > north bridge configuration
There is an interesting option: IOMMU = disabled (by default).
I try to install CentOS 5.11, and there's no shutdown problem.
But...when i change IOMMU = enable, shutdown problem appear with the same error messages.
So I think this is a bios feature problem.
MSI don't have option to control IOMMU feature.
On bios setting: chipset > north bridge configuration
There is an interesting option: IOMMU = disabled (by default).
I try to install CentOS 5.11, and there's no shutdown problem.
But...when i change IOMMU = enable, shutdown problem appear with the same error messages.
So I think this is a bios feature problem.
MSI don't have option to control IOMMU feature.