diff options
| -rw-r--r-- | migration/multifd.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/migration/multifd.c b/migration/multifd.c index 5a3e4d0d46..d0441202aa 100644 --- a/migration/multifd.c +++ b/migration/multifd.c @@ -415,6 +415,12 @@ static int multifd_send_pages(QEMUFile *f) } qemu_sem_wait(&multifd_send_state->channels_ready); + /* + * next_channel can remain from a previous migration that was + * using more channels, so ensure it doesn't overflow if the + * limit is lower now. + */ + next_channel %= migrate_multifd_channels(); for (i = next_channel;; i = (i + 1) % migrate_multifd_channels()) { p = &multifd_send_state->params[i]; |