@@ -736,7 +736,16 @@ static void multifd_tls_outgoing_handshake(QIOTask *task,
} else {
trace_multifd_tls_outgoing_handshake_complete(ioc);
}
- multifd_channel_connect(p, ioc, err);
+
+ if (multifd_channel_connect(p, ioc, err)) {
+ /*
+ * Error happen, mark multifd_send_thread status as 'quit' although it
+ * is not created, and then tell who pay attention to me.
+ */
+ p->quit = true;
+ qemu_sem_post(&multifd_send_state->channels_ready);
+ qemu_sem_post(&p->sem_sync);
+ }
}
static void *multifd_tls_handshake_thread(void *opaque)
If any error happens during multifd send thread creating (e.g. channel broke because new domain is destroyed by the dst), multifd_tls_handshake_thread may exit silently, leaving main migration thread hanging (ram_save_setup -> multifd_send_sync_main -> qemu_sem_wait(&p->sem_sync)). Fix that by adding error handling in multifd_tls_handshake_thread. Signed-off-by: Hao Wang <wanghao232@huawei.com> --- migration/multifd.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-)