[Libguestfs] DEBUGGING LIBGUESTFS

Richard W.M. Jones rjones at redhat.com
Wed Nov 21 12:08:20 UTC 2018


On Wed, Nov 21, 2018 at 11:47:18AM +0000, Tobita, Nilton (Nokia - BR/Sao Paulo)> Original error from libvirt: internal error: process exited while connecting to monitor: 2018-11-21T08:15:39.670714Z qemu-kvm: error: failed to set MSR 0x38d to 0x0
> qemu-kvm: /builddir/build/BUILD/qemu-2.10.0/target/i386/kvm.c:1809: kvm_put_msrs: Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed. [code=1 int1=-1]

Yes this is unfortunately a recent bug in qemu which has come up
several times.  I don't believe there is a resolution yet, but please
see:

https://bugzilla.redhat.com/show_bug.cgi?id=1651021
https://lists.gnu.org/archive/html/qemu-devel/2018-11/msg03509.html

If you are trying to run libguestfs under VMware hypervisor then there
is a similar bug with probably a different cause:

https://bugzilla.redhat.com/show_bug.cgi?id=1648403

Rich.

-- 
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
Read my programming and virtualization blog: http://rwmj.wordpress.com
libguestfs lets you edit virtual machines.  Supports shell scripting,
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