Displaying 1 result from an estimated 1 matches for "12d18d2e".
2013 Jan 21
1
Bug#698651: xen-hypervisor-4.1-amd64: PMU (performance monitoring) unit may be unexpectedly enabled on Dom0
Package: xen-hypervisor-4.1-amd64
Version: 4.1.3-7
Severity: important
Tags: patch
Dear Maintainer,
The PMU may be enabled on the Dom0 although the needed MSRs are not
accessible, causing at least major noise on the xen messages ring
buffer. I suspect there might also be a performance decrease, because
the MSR write is trapped by Xen.
Once the PC is in that state, a reboot won't help.
This