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From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@vger.kernel.org
Subject: [Bug 111711] New: IOMMU Xonar Essence STX causes issues
Date: Tue, 02 Feb 2016 02:05:32 +0000	[thread overview]
Message-ID: <bug-111711-28872@https.bugzilla.kernel.org/> (raw)

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: virtualization_kvm@kernel-bugs.osdl.org
          Reporter: bellamorte42@gmail.com
        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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             reply	other threads:[~2016-02-02  2:05 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-02  2:05 bugzilla-daemon [this message]
2016-02-02  2:16 ` [Bug 111711] IOMMU Xonar Essence STX causes issues bugzilla-daemon
2016-02-02 21:21 ` bugzilla-daemon
2016-02-07  3:10 ` bugzilla-daemon
2016-04-02 10:44 ` bugzilla-daemon
2016-04-05  0:34 ` bugzilla-daemon
2017-05-04  7:19 ` bugzilla-daemon

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