Library: Pass more options on the Linux kernel command line.

Always pass:
  noapic             (APIC causes problems for lots of people)
  udevtimeout=300    (for very slow qemu using softemu)
  acpi=off           (ACPI is troublesome and unnecessary, so turn it off)

diff --git a/src/guestfs.c b/src/guestfs.c
index 386dee6..fa8a5fc 100644 (file)
--- a/src/guestfs.c
+++ b/src/guestfs.c
@@ -1043,9 +1043,16 @@ guestfs_launch (guestfs_h *g)
              "channel,%d:unix:%s,server,nowait",
              VMCHANNEL_PORT, unixsock);
 
+#define LINUX_CMDLINE                                                  \
+    "panic=1 "         /* force kernel to panic if daemon exits */     \
+    "console=ttyS0 "   /* serial console */                            \
+    "udevtimeout=300 " /* good for very slow systems (RHBZ#480319) */  \
+    "noapic "          /* workaround for RHBZ#502058 - ok if not SMP */ \
+    "acpi=off "        /* we don't need ACPI, turn it off */
+
     /* Linux kernel command line. */
     snprintf (append, sizeof append,
-             "panic=1 console=ttyS0 guestfs=%s:%d%s%s%s",
+             LINUX_CMDLINE "guestfs=%s:%d%s%s%s",
              VMCHANNEL_ADDR, VMCHANNEL_PORT,
              g->verbose ? " guestfs_verbose=1" : "",
              g->append ? " " : "", g->append ? g->append : "");