[v2] migration: Check for duplicates on vmstate_register()

[PATCH v2 05/13] migration: Use VMSTATE_INSTANCE_ID_ANY for slirp

Juan Quintela posted 13 patches 2 years, 2 months ago

Diff against v1 v3
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Maintainers: Gerd Hoffmann <kraxel@redhat.com>, "Marc-André Lureau" <marcandre.lureau@redhat.com>, Stefan Berger <stefanb@linux.vnet.ibm.com>, Juan Quintela <quintela@redhat.com>, Peter Xu <peterx@redhat.com>, Fabiano Rosas <farosas@suse.de>, Leonardo Bras <leobras@redhat.com>, Corey Minyard <cminyard@mvista.com>, John Snow <jsnow@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Peter Maydell <peter.maydell@linaro.org>, Nicholas Piggin <npiggin@gmail.com>, Daniel Henrique Barboza <danielhb413@gmail.com>, "Cédric Le Goater" <clg@kaod.org>, David Gibson <david@gibson.dropbear.id.au>, Harsh Prateek Bora <harshpb@linux.ibm.com>, Stefan Weil <sw@weilnetz.de>, Jason Wang <jasowang@redhat.com>, "Michael S. Tsirkin" <mst@redhat.com>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, Richard Henderson <richard.henderson@linaro.org>, David Hildenbrand <david@redhat.com>, Ilya Leoshkevich <iii@linux.ibm.com>, Halil Pasic <pasic@linux.ibm.com>, Christian Borntraeger <borntraeger@linux.ibm.com>, Eric Farman <farman@linux.ibm.com>, Thomas Huth <thuth@redhat.com>, Samuel Thibault <samuel.thibault@ens-lyon.org>

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[PATCH v2 05/13] migration: Use VMSTATE_INSTANCE_ID_ANY for slirp

Posted by Juan Quintela 2 years, 2 months ago

Each user network conection create a new slirp instance.  We register
more than one slirp instance for number 0.

qemu-system-x86_64: -netdev user,id=hs1: savevm_state_handler_insert: Detected duplicate SaveStateEntry: id=slirp, instance_id=0x0
Broken pipe
../../../../../mnt/code/qemu/full/tests/qtest/libqtest.c:195: kill_qemu() tried to terminate QEMU process but encountered exit status 1 (expected 0)
Aborted (core dumped)

Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
---
 net/slirp.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/slirp.c b/net/slirp.c
index c33b3e02e7..25b49c4526 100644
--- a/net/slirp.c
+++ b/net/slirp.c
@@ -46,6 +46,7 @@
 #include "qapi/qmp/qdict.h"
 #include "util.h"
 #include "migration/register.h"
+#include "migration/vmstate.h"
 #include "migration/qemu-file-types.h"
 
 static int get_str_sep(char *buf, int buf_size, const char **pp, int sep)
@@ -659,8 +660,8 @@ static int net_slirp_init(NetClientState *peer, const char *model,
      * specific version?
      */
     g_assert(slirp_state_version() == 4);
-    register_savevm_live("slirp", 0, slirp_state_version(),
-                         &savevm_slirp_state, s->slirp);
+    register_savevm_live("slirp", VMSTATE_INSTANCE_ID_ANY,
+                         slirp_state_version(), &savevm_slirp_state, s->slirp);
 
     s->poll_notifier.notify = net_slirp_poll_notify;
     main_loop_poll_add_notifier(&s->poll_notifier);
-- 
2.41.0