New: Kernel panic with high network tarffic to KVM guest
https://bugzilla.kernel.org/show_bug.cgi?id=155841
Bug ID: 155841
Summary: Kernel panic with high network tarffic to KVM guest
Product: Virtualization
Version: unspecified
Kernel Version: 3.16.7
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: normal
Priority: P1
Component: kvm
Assignee: [email protected]
Reporter: [email protected]
Regression: NoCreated attachment 232051
--> https://bugzilla.kernel.org/attachment.cgi?id=232051&action=edit
crashlog-screenshot
Our KVM host crashes randomly when there is high network traffic to the guest. For the host crashlog see the attached screenshot.
We are using this guest as a Freifunk (freifunk.net) gateway. We suspect that this occurs when to many nodes are connecting to the gateway.
At startup of the host error messages like the following are shown:
[ 45.769454] kvm: zapping shadow pages for mmio generation wraparound [ 52.593232] kvm [1807]: vcpu0 unhandled rdmsr: 0x606 [ 76.593085] kvm [1807]: vcpu0 unhandled rdmsr: 0x611 [ 76.593138] kvm [1807]: vcpu0 unhandled rdmsr: 0x639 [ 76.593183] kvm [1807]: vcpu0 unhandled rdmsr: 0x641 [ 76.593227] kvm [1807]: vcpu0 unhandled rdmsr: 0x619 [ 76.607495] kvm [1807]: vcpu0 unhandled rdmsr: 0x611 [ 76.607559] kvm [1807]: vcpu0 unhandled rdmsr: 0x639 [ 76.607609] kvm [1807]: vcpu0 unhandled rdmsr: 0x641 [ 76.607658] kvm [1807]: vcpu0 unhandled rdmsr: 0x619
This happening under high network load is only our suspicion.
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[Bug 155841] Kernel panic with high network tarffic to KVM guest
https://bugzilla.kernel.org/show_bug.cgi?id=155841
Nudelsalat <[email protected]> changed:
What |Removed |Added
----------------------------------------------------------------------------
Kernel Version|3.16.7 |3.16.0
--- Comment #1 from Nudelsalat <[email protected]> --- Yesterday we also installed the newest Kernel (4.6.0-0) that is included in the Debian Jessie Backports repo. Until now it is running without any crashes. The unhandled rdmsr stayed but I think this is a qemu or kvm error.
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