If "kvm run" without balloon option, use "kvm balloon" may
crash kvm. Add signal placeholder to avoid this.

Signed-off-by: Liming Wang <[email protected]>
---
 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);
+       signal(SIGKVMDELMEM, handle_empty);
 
        nr_online_cpus = sysconf(_SC_NPROCESSORS_ONLN);
 
-- 
1.7.0.4

--
To unsubscribe from this list: send the line "unsubscribe kvm" in
the body of a message to [email protected]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to