From: Hermann Lauer <Hermann.Lauer@xxxxxxxxxxxxxxxxxxxxx>
Date: Mon, 26 Jan 2009 11:04:39 +0100
> [ 48.965131] calling of_bus_driver_init+0x0/0x104
> [ 49.021376] Setting up of bus
Strance, here is a patch to get some more information.
Please add this patch on top of what you have so far
and reboot.
Thanks.
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 100ebd5..031efa2 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -853,16 +853,19 @@ static int __init of_bus_driver_init(voi
printk(KERN_ERR "Setting up of bus\n");
err = of_bus_type_init(&of_platform_bus_type, "of");
+ printk(KERN_ERR "of_bus_type_init() returns %d\n", err);
#ifdef CONFIG_PCI
if (!err) {
printk(KERN_ERR "Setting up ebus bus\n");
err = of_bus_type_init(&ebus_bus_type, "ebus");
+ printk(KERN_ERR "of_bus_type_init() returns %d\n", err);
}
#endif
#ifdef CONFIG_SBUS
if (!err) {
printk(KERN_ERR "Setting up sbus bus\n");
err = of_bus_type_init(&sbus_bus_type, "sbus");
+ printk(KERN_ERR "of_bus_type_init() returns %d\n", err);
}
#endif
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index ef522ae..427f582 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -869,57 +869,77 @@ int bus_register(struct bus_type *bus)
int retval;
struct bus_type_private *priv;
+ printk(KERN_ERR "In bus_register().\n");
priv = kzalloc(sizeof(struct bus_type_private), GFP_KERNEL);
- if (!priv)
+ if (!priv) {
+ printk(KERN_ERR "priv allocation failed\n");
return -ENOMEM;
+ }
priv->bus = bus;
bus->p = priv;
BLOCKING_INIT_NOTIFIER_HEAD(&priv->bus_notifier);
+ printk(KERN_ERR "Doing kobject_set_name()\n");
retval = kobject_set_name(&priv->subsys.kobj, "%s", bus->name);
- if (retval)
+ if (retval) {
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto out;
+ }
priv->subsys.kobj.kset = bus_kset;
priv->subsys.kobj.ktype = &bus_ktype;
priv->drivers_autoprobe = 1;
+ printk(KERN_ERR "kset_register()\n");
retval = kset_register(&priv->subsys);
- if (retval)
+ if (retval) {
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto out;
+ }
+ printk(KERN_ERR "bus_create_file(bus, &bus_attr_uevent)\n");
retval = bus_create_file(bus, &bus_attr_uevent);
- if (retval)
+ if (retval) {
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto bus_uevent_fail;
-
+ }
+ printk(KERN_ERR "kset_create_and_add(devices)\n");
priv->devices_kset = kset_create_and_add("devices", NULL,
&priv->subsys.kobj);
if (!priv->devices_kset) {
retval = -ENOMEM;
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto bus_devices_fail;
}
+ printk(KERN_ERR "kset_create_and_add(drivers)\n");
priv->drivers_kset = kset_create_and_add("drivers", NULL,
&priv->subsys.kobj);
if (!priv->drivers_kset) {
retval = -ENOMEM;
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto bus_drivers_fail;
}
klist_init(&priv->klist_devices, klist_devices_get, klist_devices_put);
klist_init(&priv->klist_drivers, NULL, NULL);
+ printk(KERN_ERR "add_probe_files()\n");
retval = add_probe_files(bus);
- if (retval)
+ if (retval) {
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto bus_probe_files_fail;
-
+ }
+ printk(KERN_ERR "bus_add_attrs()\n");
retval = bus_add_attrs(bus);
- if (retval)
+ if (retval) {
+ printk(KERN_ERR "Failed with err %d\n", retval);
goto bus_attrs_fail;
-
+ }
pr_debug("bus: '%s': registered\n", bus->name);
+ printk(KERN_ERR "Success\n");
return 0;
bus_attrs_fail:
--
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