Re: 2.6.21-rc6-mm1 USB related boot hang

Helge Hafting
2007-04-12T20:32:17Z

On Thu, Apr 12, 2007 at 08:32:50PM +0200, Jiri Kosina wrote:
> OK, so it hangs somewhere nearby usbhid's hid_init(), and the
> usb_register() has been already invoked. Could you please apply the
> superstupid patch below and send me the output up to the point it hangs? I
> am curious to know whether it hangs somewhere inside usb_register(), or
> elsewhere.
>
> Thanks.
>
Are you sure this is the correct patch - against 2.6.21-rc6-mm1 ?
Hunk 1 out of 1 failed . . .

> diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
> index 1ddca31..d930f62 100644
> --- a/drivers/hid/usbhid/hid-core.c
> +++ b/drivers/hid/usbhid/hid-core.c
> @@ -1550,15 +1550,22 @@ static int __init hid_init(void)
> retval = hiddev_init();
> if (retval)
> goto hiddev_init_fail;
> + printk(KERN_DEBUG "hid_init: before usb_register()\n");
> retval = usb_register(&hid_driver);
> + printk(KERN_DEBUG "hid_init: after usb_register(), retuned %d\n", retval);
> if (retval)
> goto usb_register_fail;
> info(DRIVER_VERSION ":" DRIVER_DESC);
>
> + printk(KERN_DEBUG "hid_init: returning 0\n");
> + dump_stack();
> return 0;
> usb_register_fail:
> + printk(KERN_DEBUG "hid_init: calling hiddev_exit()\n");
> hiddev_exit();
> hiddev_init_fail:
> + printk(KERN_DEBUG "hid_init: returning %d\n", retval);
> + dump_stack();
> return retval;
> }
>