From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:34991) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bWuvm-0002Ah-V0 for qemu-devel@nongnu.org; Mon, 08 Aug 2016 20:30:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1bWuvi-0005fz-PH for qemu-devel@nongnu.org; Mon, 08 Aug 2016 20:30:05 -0400 Received: from mga09.intel.com ([134.134.136.24]:24031) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1bWuvi-0005fa-Jg for qemu-devel@nongnu.org; Mon, 08 Aug 2016 20:30:02 -0400 From: Liang Li Date: Tue, 9 Aug 2016 08:22:26 +0800 Message-Id: <1470702146-24399-1-git-send-email-liang.z.li@intel.com> Subject: [Qemu-devel] [PATCH] migration: fix live migration failure with compression List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: quintela@redhat.com, amit.shah@redhat.com, dgilbert@redhat.com, berrange@redhat.com, Liang Li Because of commit 11808bb0c422, which remove some condition checks of 'f->ops->writev_buffer', 'qemu_put_qemu_file' should be enhanced to clear the 'f_src->iovcnt', or 'f_src->iovcnt' may exceed the MAX_IOV_SIZE which will break live migration. This should be fixed. Signed-off-by: Liang Li Reported-by: Jinshi Zhang --- migration/qemu-file.c | 1 + 1 file changed, 1 insertion(+) diff --git a/migration/qemu-file.c b/migration/qemu-file.c index bbc565e..e9fae31 100644 --- a/migration/qemu-file.c +++ b/migration/qemu-file.c @@ -668,6 +668,7 @@ int qemu_put_qemu_file(QEMUFile *f_des, QEMUFile *f_src) len = f_src->buf_index; qemu_put_buffer(f_des, f_src->buf, f_src->buf_index); f_src->buf_index = 0; + f_src->iovcnt = 0; } return len; } -- 1.9.1