Fix QEMU startup timeout/race (rhbz #484649)

Setup DBus threading. Don't allow dbus to call _exit / change SIGPIPE (rhbz #484553)
Fix timeout when autostarting session daemon

libvirt-0.6.0-autostart-timeout.patch

@@ -0,0 +1,21 @@
+diff -rup libvirt-0.6.0.orig/src/remote_internal.c libvirt-0.6.0.new/src/remote_internal.c
+--- libvirt-0.6.0.orig/src/remote_internal.c	2009-02-18 10:56:34.000000000 +0000
++++ libvirt-0.6.0.new/src/remote_internal.c	2009-02-18 13:35:26.000000000 +0000
+@@ -654,12 +654,13 @@ doRemoteOpen (virConnectPtr conn,
+              */
+             if (errno == ECONNREFUSED &&
+                 flags & VIR_DRV_OPEN_REMOTE_AUTOSTART &&
+-                trials < 5) {
++                trials < 20) {
+                 close(priv->sock);
+                 priv->sock = -1;
+-                if (remoteForkDaemon(conn) == 0) {
++                if (trials > 0 ||
++                    remoteForkDaemon(conn) == 0) {
+                     trials++;
+-                    usleep(5000 * trials * trials);
++                    usleep(1000 * 100 * trials);
+                     goto autostart_retry;
+                 }
+             }
+Only in libvirt-0.6.0.new/src: remote_internal.c~

libvirt-0.6.0-dbus-threads.patch

@@ -0,0 +1,44 @@
+diff -rup libvirt-0.6.0.orig/qemud/qemud.c libvirt-0.6.0.new/qemud/qemud.c
+--- libvirt-0.6.0.orig/qemud/qemud.c	2009-02-18 10:56:34.000000000 +0000
++++ libvirt-0.6.0.new/qemud/qemud.c	2009-02-18 12:52:18.000000000 +0000
+@@ -860,6 +860,10 @@ static struct qemud_server *qemudNetwork
+     if (auth_unix_rw == REMOTE_AUTH_POLKIT ||
+         auth_unix_ro == REMOTE_AUTH_POLKIT) {
+         DBusError derr;
++
++        dbus_connection_set_change_sigpipe(FALSE);
++        dbus_threads_init_default();
++
+         dbus_error_init(&derr);
+         server->sysbus = dbus_bus_get(DBUS_BUS_SYSTEM, &derr);
+         if (!(server->sysbus)) {
+@@ -868,6 +872,7 @@ static struct qemud_server *qemudNetwork
+             dbus_error_free(&derr);
+             goto cleanup;
+         }
++        dbus_connection_set_exit_on_disconnect(server->sysbus, FALSE);
+     }
+ #endif
+ 
+diff -rup libvirt-0.6.0.orig/src/node_device_hal.c libvirt-0.6.0.new/src/node_device_hal.c
+--- libvirt-0.6.0.orig/src/node_device_hal.c	2009-01-16 12:44:22.000000000 +0000
++++ libvirt-0.6.0.new/src/node_device_hal.c	2009-02-18 12:52:48.000000000 +0000
+@@ -685,6 +685,9 @@ static int halDeviceMonitorStartup(void)
+     nodeDeviceLock(driverState);
+ 
+     /* Allocate and initialize a new HAL context */
++    dbus_connection_set_change_sigpipe(FALSE);
++    dbus_threads_init_default();
++
+     dbus_error_init(&err);
+     hal_ctx = libhal_ctx_new();
+     if (hal_ctx == NULL) {
+@@ -696,6 +699,8 @@ static int halDeviceMonitorStartup(void)
+         fprintf(stderr, "%s: dbus_bus_get failed\n", __FUNCTION__);
+         goto failure;
+     }
++    dbus_connection_set_exit_on_disconnect(dbus_conn, FALSE);
++
+     if (!libhal_ctx_set_dbus_connection(hal_ctx, dbus_conn)) {
+         fprintf(stderr, "%s: libhal_ctx_set_dbus_connection failed\n",
+                 __FUNCTION__);

libvirt-0.6.0-qemu-startup.patch

@@ -0,0 +1,109 @@
+diff -rup libvirt-0.6.0.orig/src/qemu_driver.c libvirt-0.6.0.new/src/qemu_driver.c
+--- libvirt-0.6.0.orig/src/qemu_driver.c	2009-01-31 09:04:18.000000000 +0000
++++ libvirt-0.6.0.new/src/qemu_driver.c	2009-02-18 11:15:37.000000000 +0000
+@@ -633,6 +633,7 @@ qemudReadMonitorOutput(virConnectPtr con
+ {
+     int got = 0;
+     buf[0] = '\0';
++    timeout *= 1000; /* poll wants milli seconds */
+ 
+     /* Consume & discard the initial greeting */
+     while (got < (buflen-1)) {
+@@ -694,6 +695,56 @@ qemudReadMonitorOutput(virConnectPtr con
+ 
+ }
+ 
++
++/*
++ * Returns -1 for error, 0 on success
++ */
++static int
++qemudReadLogOutput(virConnectPtr conn,
++                   virDomainObjPtr vm,
++                   int fd,
++                   char *buf,
++                   int buflen,
++                   qemudHandlerMonitorOutput func,
++                   const char *what,
++                   int timeout)
++{
++    int got = 0;
++    int ret;
++    int retries = timeout*10;
++    buf[0] = '\0';
++
++    while (retries) {
++        while((ret = read(fd, buf+got, buflen-got-1)) > 0) {
++            got += ret;
++            buf[got] = '\0';
++            if ((buflen-got-1) == 0) {
++                qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
++                                 _("Out of space while reading %s log output"), what);
++                return -1;
++            }
++        }
++
++        if (ret < 0 && errno != EINTR) {
++            virReportSystemError(conn, errno,
++                                 _("Failure while reading %s log output"),
++                                 what);
++            return -1;
++        }
++
++        ret = func(conn, vm, buf, fd);
++        if (ret <= 0)
++            return ret;
++
++        usleep(100*1000);
++        retries--;
++    }
++    if (retries == 0)
++        qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
++                         _("Timed out while reading %s log output"), what);
++    return -1;
++}
++
+ static int
+ qemudCheckMonitorPrompt(virConnectPtr conn ATTRIBUTE_UNUSED,
+                         virDomainObjPtr vm,
+@@ -738,7 +789,7 @@ static int qemudOpenMonitor(virConnectPt
+                                    vm, monfd,
+                                    buf, sizeof(buf),
+                                    qemudCheckMonitorPrompt,
+-                                   "monitor", 10000) <= 0)
++                                   "monitor", 10) <= 0)
+             ret = -1;
+         else
+             ret = 0;
+@@ -770,6 +821,7 @@ static int qemudOpenMonitor(virConnectPt
+     return ret;
+ }
+ 
++/* Returns -1 for error, 0 success, 1 continue reading */
+ static int qemudExtractMonitorPath(virConnectPtr conn,
+                                    const char *haystack,
+                                    size_t *offset,
+@@ -873,19 +925,16 @@ static int qemudWaitForMonitor(virConnec
+         < 0)
+         return -1;
+ 
+-    ret = qemudReadMonitorOutput(conn, vm, logfd, buf, sizeof(buf),
+-                                 qemudFindCharDevicePTYs,
+-                                 "console", 3000);
++    ret = qemudReadLogOutput(conn, vm, logfd, buf, sizeof(buf),
++                             qemudFindCharDevicePTYs,
++                             "console", 3);
+     if (close(logfd) < 0)
+         qemudLog(QEMUD_WARN, _("Unable to close logfile: %s\n"),
+                  strerror(errno));
+ 
+-    if (ret == 1) /* Success */
++    if (ret == 0) /* success */
+         return 0;
+ 
+-    if (ret == -1)
+-        return -1;
+-
+     /* Unexpected end of file - inform user of QEMU log data */
+     qemudReportError(conn, NULL, NULL, VIR_ERR_INTERNAL_ERROR,
+                      _("unable to start guest: %s"), buf);

libvirt.spec

@@ -47,12 +47,15 @@
 Summary: Library providing a simple API virtualization
 Name: libvirt
 Version: 0.6.0
-Release: 2%{?dist}%{?extra_release}
+Release: 3%{?dist}%{?extra_release}
 License: LGPLv2+
 Group: Development/Libraries
 Source: libvirt-%{version}.tar.gz
 Patch1: %{name}-%{version}-timeout.patch
 Patch2: %{name}-%{version}-rpccall.patch
+Patch3: %{name}-%{version}-qemu-startup.patch
+Patch4: %{name}-%{version}-dbus-threads.patch
+Patch5: %{name}-%{version}-autostart-timeout.patch
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root
 URL: http://libvirt.org/
 BuildRequires: python python-devel
@@ -181,6 +184,9 @@ of recent versions of Linux (and other OSes).
 %setup -q
 %patch1 -p1
 %patch2 -p1
+%patch3 -p1
+%patch4 -p1
+%patch5 -p1
 
 %build
 %if ! %{with_xen}
@@ -463,6 +469,11 @@ fi
 %endif
 
 %changelog
+* Wed Feb 18 2009 Daniel P. Berrange <berrange@redhat.com> - 0.6.0-3.fc9
+- Fix QEMU startup timeout/race (rhbz #484649)
+- Setup DBus threading. Don't allow dbus to call _exit / change SIGPIPE (rhbz #484553)
+- Fix timeout when autostarting session daemon
+
 * Fri Feb  6 2009 Daniel P. Berrange <berrange@redhat.com> - 0.6.0-2.fc9
 - Fix libvirtd --timeout usage
 - Fix RPC call problems and QEMU startup handling (rhbz #484414)