From: Hermann Lauer <Hermann.Lauer@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 22 Jan 2009 14:29:34 +0100
> Compiled 2.6.27.12 today without the CON_BOOT flag and booted with the
> options above. The hang seems to be in of_bus_driver_init, see
> console output below.
I wonder what's getting tripped up in there :-)
Please add this patch and get the new console output, thanks!
diff --git a/arch/sparc64/kernel/of_device.c b/arch/sparc64/kernel/of_device.c
index 100ebd5..fefd415 100644
--- a/arch/sparc64/kernel/of_device.c
+++ b/arch/sparc64/kernel/of_device.c
@@ -818,10 +818,16 @@ static struct of_device * __init scan_one_device(struct device_node *dp,
static void __init scan_tree(struct device_node *dp, struct device *parent)
{
while (dp) {
- struct of_device *op = scan_one_device(dp, parent);
-
- if (op)
+ struct of_device *op;
+
+ printk(KERN_ERR "scan_tree: Scanning device %p:[%s]\n",
+ dp, (dp ? dp->full_name : "<NULL>"));
+ op = scan_one_device(dp, parent);
+ if (op) {
+ printk(KERN_ERR "scan_tree: Recursing to child %p\n",
+ dp->child);
scan_tree(dp->child, &op->dev);
+ }
dp = dp->sibling;
}
@@ -832,10 +838,12 @@ static void __init scan_of_devices(void)
struct device_node *root = of_find_node_by_path("/");
struct of_device *parent;
+ printk(KERN_ERR "Building root from %p\n", root);
parent = scan_one_device(root, NULL);
if (!parent)
return;
+ printk(KERN_ERR "Scanning tree...\n");
scan_tree(root->child, &parent->dev);
}
@@ -843,18 +851,26 @@ static int __init of_bus_driver_init(void)
{
int err;
+ printk(KERN_ERR "Setting up of bus\n");
err = of_bus_type_init(&of_platform_bus_type, "of");
#ifdef CONFIG_PCI
- if (!err)
+ if (!err) {
+ printk(KERN_ERR "Setting up ebus bus\n");
err = of_bus_type_init(&ebus_bus_type, "ebus");
+ }
#endif
#ifdef CONFIG_SBUS
- if (!err)
+ if (!err) {
+ printk(KERN_ERR "Setting up sbus bus\n");
err = of_bus_type_init(&sbus_bus_type, "sbus");
+ }
#endif
- if (!err)
+ if (!err) {
+ printk(KERN_ERR "scan_of_devices()\n");
scan_of_devices();
+ printk(KERN_ERR "Done with scan_of_devices()\n");
+ }
return err;
}
--
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