[Qemu-devel] [PATCH 01/16] migration: Clear fd also in error cases

[Juan Quintela]

Not clearing the fd and closing the file makes qemu spin using 100%CPU
after incoming migration error.

See for instance bug:
https://bugzilla.redhat.com/show_bug.cgi?id=518032

Signed-off-by: Juan Quintela <address@hidden>
---
 migration-exec.c |    4 ++--
 migration-fd.c   |    4 ++--
 migration-tcp.c  |    5 ++---
 migration-unix.c |    5 ++---
 4 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/migration-exec.c b/migration-exec.c
index 3edc026..6ff8449 100644
--- a/migration-exec.c
+++ b/migration-exec.c
@@ -120,12 +120,12 @@ static void exec_accept_incoming_migration(void *opaque)
     }
     qemu_announce_self();
     DPRINTF("successfully loaded vm state\n");
-    /* we've successfully migrated, close the fd */
-    qemu_set_fd_handler2(qemu_stdio_fd(f), NULL, NULL, NULL, NULL);
+
     if (autostart)
         vm_start();

 err:
+    qemu_set_fd_handler2(qemu_stdio_fd(f), NULL, NULL, NULL, NULL);
     qemu_fclose(f);
 }

diff --git a/migration-fd.c b/migration-fd.c
index 0cc74ad..9cf52ce 100644
--- a/migration-fd.c
+++ b/migration-fd.c
@@ -113,12 +113,12 @@ static void fd_accept_incoming_migration(void *opaque)
     }
     qemu_announce_self();
     DPRINTF("successfully loaded vm state\n");
-    /* we've successfully migrated, close the fd */
-    qemu_set_fd_handler2(qemu_stdio_fd(f), NULL, NULL, NULL, NULL);
+
     if (autostart)
         vm_start();

 err:
+    qemu_set_fd_handler2(qemu_stdio_fd(f), NULL, NULL, NULL, NULL);
     qemu_fclose(f);
 }

diff --git a/migration-tcp.c b/migration-tcp.c
index e7f307c..95ce722 100644
--- a/migration-tcp.c
+++ b/migration-tcp.c
@@ -170,15 +170,14 @@ static void tcp_accept_incoming_migration(void *opaque)
     qemu_announce_self();
     DPRINTF("successfully loaded vm state\n");

-    /* we've successfully migrated, close the server socket */
-    qemu_set_fd_handler2(s, NULL, NULL, NULL, NULL);
-    close(s);
     if (autostart)
         vm_start();

 out_fopen:
     qemu_fclose(f);
 out:
+    qemu_set_fd_handler2(s, NULL, NULL, NULL, NULL);
+    close(s);
     close(c);
 }

diff --git a/migration-unix.c b/migration-unix.c
index b7aab38..ce59a2a 100644
--- a/migration-unix.c
+++ b/migration-unix.c
@@ -176,13 +176,12 @@ static void unix_accept_incoming_migration(void *opaque)
     qemu_announce_self();
     DPRINTF("successfully loaded vm state\n");

-    /* we've successfully migrated, close the server socket */
-    qemu_set_fd_handler2(s, NULL, NULL, NULL, NULL);
-    close(s);

 out_fopen:
     qemu_fclose(f);
 out:
+    qemu_set_fd_handler2(s, NULL, NULL, NULL, NULL);
+    close(s);
     close(c);
 }

-- 
1.6.6.1