I meant kernel packages and not boot images, sorry. You answered my
question, thanks so much.
After setting iommu=soft, I noticed that the kern.log file was getting quite
huge. I noticed there are a large number (over 31 millions) of errors like
this:
Dec 13 08:25:01 HP kernel: [25953.936777]
I am not quite sure what you mean by "boot images". If you are dual
booting another Linux rootfs, then you'll have to set grub defaults in
each of those. Otherwise, simply installing new kernel packages should
preserve any grub settings from /etc/default/grub.
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Actually, you helped more than you think. :-)
So I did a little reading about the IOMMU issue and the problem is that
IOMMU itself is not the problem. It just shows the real problem (I
think this is not new news, really.) Anyway, the problem appears to be
the xhci_hcd device driver that I
You can make that option permanent by editing GRUB_CMDLINE_LINUX_DEFAULT
in /etc/default/grub, then running update-grub.
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Title:
I did that. Will that affect new boot images as well? i.e. the ones I
get after installing updates.
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Title:
IO_PAGE_FAULT
Status
It's hard to tell. The Asus A88XM-A has a Asus UEFI BIOS which provided
me with that option, by default it's turned off but I turned it on way
back before this problem and it worked fine until this problem started.
Turning it off seemed to fixed the problem in my case. In your case you
are having
With the risk of sounding foolish, how do you do that?
I have an HP Pavilion HE desktop and I looked around the BIOS setup
options, but couldn't find an obvious one for that. Searching the HP
support site returned no info about IOMMU.
Thanks much for your help.
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I disabled IOMMU in my UEFI Bios and it seems that the problem is gone.
It seems like there is something not right there.
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Title:
Can somebody look at this problem? It seems that the USB 3.0 support is
at issue here. Device 04:00.0 is the USB 3.0 controller, according to
lspci:
04:00.0 USB controller [0c03]: VIA Technologies, Inc. VL80x xHCI USB 3.0
Controller [1106:3432] (rev 03)
I saw this in kernel version 3.13.0.59
I am seeing the same issue starting w/kernel version 3.13.0.59.
[ 42.022439] AMD-Vi: Event logged [IO_PAGE_FAULT device=04:00.0 domain=0x0018
address=0x0002a000 flags=0x]
[ 42.055391] xhci_hcd :04:00.0: WARNING: Host System Error
[ 42.087222] xhci_hcd :04:00.0: Host not
Does booting back in to the kernel that was installed, prior to the
updates, make the bug go away?
** Tags added: kernel-da-key
** Changed in: linux (Ubuntu)
Importance: Undecided = Medium
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Hard to tell, the bug isn't constantly there. But I believe it has
something to do with IOMMU. I disabled this in the BIOS, I will see how
this goes and if the bug is still turning back I will try to boot with a
previous kernel.
Also I wanted to install the new Ubuntu 15.04 to see if this solves
Extra information. This is my output of lshw:
*-network
description: Ethernet interface
product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
vendor: Realtek Semiconductor Co., Ltd.
physical id: 0
bus info: pci@:04:00.0
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