Messages in this thread Patch in this message |  | | | Date | Thu, 12 Apr 2007 20:32:50 +0200 (CEST) | | From | Jiri Kosina <> | | Subject | Re: 2.6.21-rc6-mm1 USB related boot hang |
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On Thu, 12 Apr 2007, Helge Hafting wrote:
> The last messages (handwritten, somewhat shortened) > calling hid_init+0x0/0x10() > returned 0 > ran for 0 msec > calling hid_init+0x0/0x50() > usbcore registered new interface driver hiddev > and then it hangs completely.
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.
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; } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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