X-Git-Url: http://git.annexia.org/?a=blobdiff_plain;f=src%2Flaunch.c;h=ae1e10031c190b5c32428fe1c125df719a62e4c5;hb=60faddb06d9ba079d61f5b01af9281e5f42b3361;hp=db76885a4c9dd8114e24e5f5e1c391e4d501cde0;hpb=a9411de27d0dcc8d793aa1d0a7e96c7dc1d58585;p=libguestfs.git

diff --git a/src/launch.c b/src/launch.c
index db76885..ae1e100 100644
--- a/src/launch.c
+++ b/src/launch.c
@@ -105,9 +105,9 @@ free_regexps (void)
 }
 #endif
 
-/* Add a string to the current command line. */
+/* Functions to add a string to the current command line. */
 static void
-incr_cmdline_size (guestfs_h *g)
+alloc_cmdline (guestfs_h *g)
 {
   if (g->cmdline == NULL) {
     /* g->cmdline[0] is reserved for argv[0], set in guestfs_launch. */
@@ -115,7 +115,12 @@ incr_cmdline_size (guestfs_h *g)
     g->cmdline = safe_malloc (g, sizeof (char *));
     g->cmdline[0] = NULL;
   }
+}
 
+static void
+incr_cmdline_size (guestfs_h *g)
+{
+  alloc_cmdline (g);
   g->cmdline_size++;
   g->cmdline = safe_realloc (g, g->cmdline, sizeof (char *) * g->cmdline_size);
 }
@@ -160,11 +165,7 @@ guestfs__debug_cmdline (guestfs_h *g)
   size_t i;
   char **r;
 
-  if (g->cmdline == NULL) {
-    r = safe_malloc (g, sizeof (char *) * 1);
-    r[0] = NULL;
-    return r;
-  }
+  alloc_cmdline (g);
 
   r = safe_malloc (g, sizeof (char *) * (g->cmdline_size + 1));
   r[0] = safe_strdup (g, g->qemu); /* g->cmdline[0] is always NULL */
@@ -512,6 +513,12 @@ launch_appliance (guestfs_h *g)
     /* Set up the full command line.  Do this in the subprocess so we
      * don't need to worry about cleaning up.
      */
+
+    /* Set g->cmdline[0] to the name of the qemu process.  However
+     * it is possible that no g->cmdline has been allocated yet so
+     * we must do that first.
+     */
+    alloc_cmdline (g);
     g->cmdline[0] = g->qemu;
 
     if (qemu_supports (g, "-nodefconfig"))
@@ -607,6 +614,7 @@ launch_appliance (guestfs_h *g)
     "console=ttyS0 "   /* serial console */				\
     "udevtimeout=300 " /* good for very slow systems (RHBZ#480319) */	\
     "noapic "          /* workaround for RHBZ#502058 - ok if not SMP */ \
+    "no_timer_check "  /* fix for RHBZ#502058 */                        \
     "acpi=off "        /* we don't need ACPI, turn it off */		\
     "printk.time=1 "   /* display timestamp before kernel messages */   \
     "cgroup_disable=memory " /* saves us about 5 MB of RAM */
@@ -1071,6 +1079,11 @@ test_qemu (guestfs_h *g)
   char cmd[1024];
   FILE *fp;
 
+  free (g->qemu_help);
+  g->qemu_help = NULL;
+  free (g->qemu_version);
+  g->qemu_version = NULL;
+
   snprintf (cmd, sizeof cmd, "LC_ALL=C '%s' -nographic -help", g->qemu);
 
   /* qemu -help should always work (qemu -version OTOH wasn't
@@ -1078,7 +1091,8 @@ test_qemu (guestfs_h *g)
    * probably indicates that the qemu binary is missing.
    */
   if (test_qemu_cmd (g, cmd, &g->qemu_help) == -1) {
-    perrorf (g, _("%s: command failed: If qemu is located on a non-standard path, try setting the LIBGUESTFS_QEMU environment variable."), cmd);
+    error (g, _("command failed: %s\n\nIf qemu is located on a non-standard path, try setting the LIBGUESTFS_QEMU\nenvironment variable.  There may also be errors printed above."),
+           cmd);
     return -1;
   }
 
@@ -1105,7 +1119,7 @@ test_qemu_cmd (guestfs_h *g, const char *cmd, char **ret)
     return -1;
   }
 
-  if (pclose (fp) == -1)
+  if (pclose (fp) != 0)
     return -1;
 
   return 0;