From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:46270) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ceF7u-0003Dg-2p for qemu-devel@nongnu.org; Thu, 16 Feb 2017 01:01:11 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ceF7t-0003Cd-Ba for qemu-devel@nongnu.org; Thu, 16 Feb 2017 01:01:10 -0500 Received: from szxga01-in.huawei.com ([58.251.152.64]:14615) by eggs.gnu.org with esmtps (TLS1.0:RSA_ARCFOUR_SHA1:16) (Exim 4.71) (envelope-from ) id 1ceF7s-0003BN-JM for qemu-devel@nongnu.org; Thu, 16 Feb 2017 01:01:09 -0500 From: zhanghailiang Date: Thu, 16 Feb 2017 14:00:21 +0800 Message-ID: <1487224821-120916-5-git-send-email-zhang.zhanghailiang@huawei.com> In-Reply-To: <1487224821-120916-1-git-send-email-zhang.zhanghailiang@huawei.com> References: <1487224821-120916-1-git-send-email-zhang.zhanghailiang@huawei.com> MIME-Version: 1.0 Content-Type: text/plain Subject: [Qemu-devel] [PATCH v2 4/4] colo-compare: Fix removing fds been watched incorrectly in finalization List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: jasowang@redhat.com, zhangchen.fnst@cn.fujitsu.com, lizhijian@cn.fujitsu.com Cc: qemu-devel@nongnu.org, xuquan8@huawei.com, pss.wulizhen@huawei.com, zhanghailiang We will catch the bellow error report while try to delete compare object by qmp command: chardev/char-io.c:91: io_watch_poll_finalize: Assertion `iwp->src == ((void *)0)' failed. This is caused by failing to remove the right fd been watched while call qemu_chr_fe_set_handlers(); Fix it by pass the worker_context parameter to qemu_chr_fe_set_handlers(). Signed-off-by: zhanghailiang --- net/colo-compare.c | 20 +++++++++++--------- 1 file changed, 11 insertions(+), 9 deletions(-) diff --git a/net/colo-compare.c b/net/colo-compare.c index 37ce75c..a6fc2ff 100644 --- a/net/colo-compare.c +++ b/net/colo-compare.c @@ -84,6 +84,7 @@ typedef struct CompareState { /* compare thread, a thread for each NIC */ QemuThread thread; + GMainContext *worker_context; GMainLoop *compare_loop; } CompareState; @@ -497,30 +498,29 @@ static gboolean check_old_packet_regular(void *opaque) static void *colo_compare_thread(void *opaque) { - GMainContext *worker_context; CompareState *s = opaque; GSource *timeout_source; - worker_context = g_main_context_new(); + s->worker_context = g_main_context_new(); qemu_chr_fe_set_handlers(&s->chr_pri_in, compare_chr_can_read, - compare_pri_chr_in, NULL, s, worker_context, true); + compare_pri_chr_in, NULL, s, s->worker_context, true); qemu_chr_fe_set_handlers(&s->chr_sec_in, compare_chr_can_read, - compare_sec_chr_in, NULL, s, worker_context, true); + compare_sec_chr_in, NULL, s, s->worker_context, true); - s->compare_loop = g_main_loop_new(worker_context, FALSE); + s->compare_loop = g_main_loop_new(s->worker_context, FALSE); /* To kick any packets that the secondary doesn't match */ timeout_source = g_timeout_source_new(REGULAR_PACKET_CHECK_MS); g_source_set_callback(timeout_source, (GSourceFunc)check_old_packet_regular, s, NULL); - g_source_attach(timeout_source, worker_context); + g_source_attach(timeout_source, s->worker_context); g_main_loop_run(s->compare_loop); g_source_unref(timeout_source); g_main_loop_unref(s->compare_loop); - g_main_context_unref(worker_context); + g_main_context_unref(s->worker_context); return NULL; } @@ -717,8 +717,10 @@ static void colo_compare_finalize(Object *obj) { CompareState *s = COLO_COMPARE(obj); - qemu_chr_fe_deinit(&s->chr_pri_in); - qemu_chr_fe_deinit(&s->chr_sec_in); + qemu_chr_fe_set_handlers(&s->chr_pri_in, NULL, NULL, NULL, NULL, + s->worker_context, true); + qemu_chr_fe_set_handlers(&s->chr_sec_in, NULL, NULL, NULL, NULL, + s->worker_context, true); qemu_chr_fe_deinit(&s->chr_out); g_main_loop_quit(s->compare_loop); -- 1.8.3.1