On Thu, 2011-08-11 at 13:07 +0800, Liming Wang wrote: > If "kvm run" without balloon option, use "kvm balloon" may > crash kvm. Add signal placeholder to avoid this. > > Signed-off-by: Liming Wang <walimisdev@xxxxxxxxx> > --- > tools/kvm/builtin-run.c | 7 +++++++ > 1 files changed, 7 insertions(+), 0 deletions(-) > > diff --git a/tools/kvm/builtin-run.c b/tools/kvm/builtin-run.c > index fa5de27..d725834 100644 > --- a/tools/kvm/builtin-run.c > +++ b/tools/kvm/builtin-run.c > @@ -280,6 +280,10 @@ static void handle_sigstop(int sig) > kvm_cpu__reboot(); > } > > +static void handle_empty(int sig) > +{ > +} > + > static void *kvm_cpu_thread(void *arg) > { > current_kvm_cpu = arg; > @@ -469,6 +473,9 @@ int kvm_cmd_run(int argc, const char **argv, const char *prefix) > signal(SIGUSR2, handle_sigusr2); > signal(SIGKVMSTOP, handle_sigstop); > signal(SIGKVMRESUME, handle_sigusr2); > + /* signal placeholder if not enable balloon */ > + signal(SIGKVMADDMEM, handle_empty); You can just do this: signal(SIGKVMADDMEM, SIG_IGN); For both, and avoid the empty handler. > + signal(SIGKVMDELMEM, handle_empty); > > nr_online_cpus = sysconf(_SC_NPROCESSORS_ONLN); > -- Sasha. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html