| Message ID | 20090125.183023.179806550.davem@davemloft.net |
|---|---|
| State | RFC |
| Delegated to: | David Miller |
| Headers | show |
On Sun, Jan 25, 2009 at 06:30:23PM -0800, David Miller wrote: > > > 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! Not getting much futher, only a "Setting up of bus", see below. The full console output I leave on: http://www.iwr.uni-heidelberg.de/ftp/linux/sparc-boot/console20090126.txt Is that ok or should I always attach the complete console ? If time permits I'll test on a 480R, too. Thanks. ~> tail /tmp/console20090126.txt [ 48.455736] initcall random32_init+0x0/0xf0 returned 0 after 0 msecs [ 48.531777] calling sock_init+0x0/0x64 [ 48.577716] initcall sock_init+0x0/0x64 returned 0 after 0 msecs [ 48.649494] calling netpoll_init+0x0/0x30 [ 48.698453] initcall netpoll_init+0x0/0x30 returned 0 after 0 msecs [ 48.773455] calling netlink_proto_init+0x0/0x238 [ 48.829727] NET: Registered protocol family 16 [ 48.882871] initcall netlink_proto_init+0x0/0x238 returned 0 after 3 msecs [ 48.965131] calling of_bus_driver_init+0x0/0x104 [ 49.021376] Setting up of bus
On Mon, Jan 26, 2009 at 11:04:39AM +0100, Hermann Lauer wrote: > > Not getting much futher, only a "Setting up of bus", see below. > The full console output I leave on: > > http://www.iwr.uni-heidelberg.de/ftp/linux/sparc-boot/console20090126.txt > > Is that ok or should I always attach the complete console ? > If time permits I'll test on a 480R, too. Thanks. Just to confirm myself: the 480R hangs at the same point, so some change is in the kernel which make of_bus_driver_init unhappy on this types of machines. Full console log is available at: http://www.iwr.uni-heidelberg.de/ftp/linux/sparc-boot/console480R20090127.txt Hermann
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; }