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New: IOMMU Xonar Essence STX causes issues

Bug 111711 [email protected] 1 participant 7 messages Feb 2, 2016 – May 4, 2017 KVM

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https://bugzilla.kernel.org/show_bug.cgi?id=111711

Bug ID: 111711
Summary: IOMMU Xonar Essence STX causes issues
Product: Virtualization
Version: unspecified
Kernel Version: 4.4
Hardware: x86-64
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: kvm
Assignee: [email protected]
Reporter: [email protected]
Regression: No

I decided to post this bug here because AFAIK there haven't any real changes to snd-virtuoso and this bug only occurs with IOMMU enabled. This issue occurs during normal operation (not running a VM). Attempting to use the xonar essence results in about 2000 lines of dmesg repeating the following:

[   38.646702] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100000 flags=0x0050]
[   38.646707] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100040 flags=0x0050]
[   38.646709] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100000 flags=0x0050]
[   38.646710] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100040 flags=0x0050]
[   38.646711] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100000 flags=0x0050]
[   38.646713] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100040 flags=0x0050]
[   38.646714] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000
address=0x0000000000100000 flags=0x0050]
[   38.646715] AMD-Vi: Event logged [IO_PAGE_FAULT device=07:00.0 domain=0x0000

address=0x0000000000100040 flags=0x0050]

This also causes any video playback to freeze. I get about 2 frames before that happens.

This issue was not present under 4.1, 4.2, or 4.3. I think it was 4.4rc3 I tested when I fist saw it but I did not test the earlier rcs.

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#4 lore raw

[Bug 111711] IOMMU Xonar Essence STX causes issues

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=111711

Clemens Ladisch <[email protected]> changed:

What |Removed |Added
----------------------------------------------------------------------------
CC| |[email protected]

--- Comment #2 from Clemens Ladisch <[email protected]> --- How did you resolve this?

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#5 lore raw

[Bug 111711] IOMMU Xonar Essence STX causes issues

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=111711

--- Comment #3 from [email protected] ---
As posted above, "Drivers/Sound or Drivers/PCI are probably much more appropriate categories for this."

I choose resolved as obsolete and posted a new bug under ALSA, as there was not a 'Resolved as don't care, post this somewhere else' option.

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#6 lore raw

[Bug 111711] IOMMU Xonar Essence STX causes issues

In reply to [email protected]

https://bugzilla.kernel.org/show_bug.cgi?id=111711

Paul Menzel ([email protected]) changed:

What |Removed |Added
----------------------------------------------------------------------------

                 CC|                            |[email protected]
                   |                            |ge.net

--- Comment #4 from Paul Menzel ([email protected]) --- (In reply to bellamorte42 from comment #3)

Quoted 5 lines

As posted above, "Drivers/Sound or Drivers/PCI are probably much more appropriate categories for this."

I choose resolved as obsolete and posted a new bug under ALSA, as there was not a 'Resolved as don't care, post this somewhere else' option.

Please provide an URL for your new bug report.

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