On Fri, 13 Oct 2017 10:46:22 +0200 Cornelia Huck <coh...@redhat.com> wrote:
> On Fri, 13 Oct 2017 10:35:06 +0200 > Greg Kurz <gr...@kaod.org> wrote: > > > If a CPU selected with the "cpu" command is hot-unplugged then "info cpus" > > causes QEMU to exit: > > > > (qemu) device_del cpu1 > > (qemu) info cpus > > qemu:qemu_cpu_kick_thread: No such process > > > > I could verify that this happens with x86 and ppc, but I guess s390x is > > also impacted. > > Not really, as s390x does not support cpu unplug. > I must admit I didn't check. Thanks for telling me. :) > > > > This series tries to fix the issue by using object_ref() and object_unref() > > in the monitor code. For this to work on ppc, some preliminary work is > > needed to let QOM handle the CPU object lifecycle. > > > > Please comment. > > > > -- > > Greg > > > > --- > > > > Greg Kurz (2): > > spapr_cpu_core: instantiate CPUs separately > > monitor: add proper reference counting of the current CPU > > > > > > hw/ppc/spapr.c | 10 +++------- > > hw/ppc/spapr_cpu_core.c | 29 +++++++++-------------------- > > include/hw/ppc/spapr_cpu_core.h | 2 +- > > monitor.c | 12 ++++++++++++ > > 4 files changed, 25 insertions(+), 28 deletions(-) > > >
