USB changes.

[Julian Elischer]

Julian Elischer wrote:

>
>> +++
>>
>> Currently, I find my P4 hanging just after discovering the parallel
>> port and mounting disk; in other words, just here:
>>
>> but ->only<- when my Logitech USB mouse is plugged in. Now, if I
>> unplug it and hit reset (not Ctrl-Alt-Del; the keyboard is frozen) the
>> system boots, and I can obtain X w/ a functional mouse. Yesterday, of
>> course, prior to the USB change the system did not hang.
>

try plugging the mouse in again before X starts.

>>
>
> I saw this problem in testing ad THOUGHT I had checked in the fix..
>
> Can you confirm that usb.c ends with:
>  SYSINIT(usb_cold_explore, SI_SUB_INT_CONFIG_HOOKS, SI_ORDER_FIRST,
>    usb_cold_explore, NULL);


>
>
>> I noticed that some code was changed in between my discovery of the
>> hanging and my attempt to fix it:
>>
>> Apr 27 21:15 subr_bus.c
>>
>> but this change, and the subsequent world update, did not solve the
>> issue of the hanging mouse.
>
>
> the changes that you are refering to include some to defer probing of 
> the USB 1.1 busses untill after the USB2.0 busses have been configured.
> They should probe for the devices at around the same time that the 
> scsi devices probe.
> I'll see if I can duplicate yuor problem.. I tested with several USB 1.1
> devices but a mounse was not amongst them.


I tried to duplicate this but failed.. my mose was found just fine..
can you boot with  the -v option?
i.e.   "boot -v" fromt eh loader prompt.


>
>
>>
>> See, I know I've only myself to blame for missing the announcement
>> and/or starting an upgrade in an interstice between stability and
>> apparent instability. But still...test first, deploy later, perhaps?
>>
>> Kernel bits, had them for a couple of years now:
>>
>> device          uhci
>> device          ohci
>> device          ehci
>> device          usb
>> device          ugen
>> device          ums
>> device          uscanner
>>
>> With my luck, it's probably not the mouse after all.
>

what about if you don't have the ums driver loaded?

>
> I assume it works right if you remove the mouse before booting and 
> reinsert it after the kernel has booted?
>