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From: bugzilla-daemon@bugzilla.kernel.org
To: kvm@kernel.org
Subject: [Bug 196685] System becomes unresponsive after intel_iommu kernel error
Date: Thu, 17 Aug 2017 05:13:58 +0000	[thread overview]
Message-ID: <bug-196685-28872-dwtgwyDssk@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-196685-28872@https.bugzilla.kernel.org/>

https://bugzilla.kernel.org/show_bug.cgi?id=196685

changbin.du@hotmail.com changed:

           What    |Removed                     |Added
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                 CC|                            |changbin.du@hotmail.com

--- Comment #5 from changbin.du@hotmail.com ---
(In reply to Jason Hicks from comment #0)
> Created attachment 257969 [details]
> Kernel error in /var/log/kern.log
> 
> I using a qemu virtual machine with VGA pass through. I have two Intel NICs
> in use by my motherboard, and I am passing through one of them so I can
> network with the VM over gigabit ethernet. I have been using this without
> issues for several months, but recently my system started becoming unstable.
> Before each crash, the network connection would abruptly end, and I suspect
> that is related to this. My desktop environment locks up, and after logging
> into my user account in another terminal, it is flooded with UFW block
> messages and no commands using sudo return anything. A kernel error
> appearing to be caused by intel_iommu is left in the kernel log. After this
> has happened yesterday, I ran memtest86 and my memory is okay. I am using an
> engineering sample CPU that is a down-clocked Intel E5 2680 v4. I haven't
> had any issues with this chip except recently when using VT-d.

Checking your dmesg, there are several kernel oops from different modules. Can
you share a full dmesg start from boot, to get the original error?

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  parent reply	other threads:[~2017-08-17  5:14 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-08-17  4:49 [Bug 196685] New: System becomes unresponsive after intel_iommu kernel error bugzilla-daemon
2017-08-17  4:50 ` [Bug 196685] " bugzilla-daemon
2017-08-17  4:52 ` bugzilla-daemon
2017-08-17  5:00 ` bugzilla-daemon
2017-08-17  5:02 ` bugzilla-daemon
2017-08-17  5:13 ` bugzilla-daemon [this message]
2017-08-17  5:27 ` bugzilla-daemon
2017-08-17  5:30 ` bugzilla-daemon
2017-08-18 10:14 ` bugzilla-daemon
2017-08-19 16:58 ` bugzilla-daemon
2017-08-19 17:03 ` bugzilla-daemon
2017-08-19 17:11 ` bugzilla-daemon
2017-08-20 13:03 ` bugzilla-daemon
2017-08-20 14:23 ` bugzilla-daemon
2017-08-21  5:42 ` bugzilla-daemon
2017-08-21  5:47 ` bugzilla-daemon
2017-08-22  7:47 ` bugzilla-daemon
2017-08-22  9:01 ` bugzilla-daemon
2017-08-22 15:00 ` bugzilla-daemon
2017-08-23  7:04 ` bugzilla-daemon

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