Messages in this thread |  | | Date | Thu, 09 Nov 2000 14:40:36 -0800 | From | David Ford <> | Subject | Re: [bug] usb-uhci locks up on boot half the time |
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"Dunlap, Randy" wrote:
> > Either. Currently bus (self) powered. This hub has worked > > fine on my other > > computers without any adverse affect. > > Bus-powered != self-powered.
It had been a long day. I really do know the distinction :)
It is currently bus powered and I've only once had it self powered several months ago. It is an SIIG 4 port hub, I hadn't seen any complaints about it doing a web search when I looked, so I purchased it.
I have found that after unplug/plug the mouse and reboot, If I unplug the hub then the boot will continue fine, if I unplug the just the mouse (which is plugged into the hub), the machine will indeed hang. If I reset the power on the hub and plug it back in it will still hang. I must reset the power on the motherboard.
The oddity is that kdb shows the machine to lock up on the popf in pci_conf_write_word()+0x2c. I never did get around to digging up this routine and looking at the code, but I suspect this is a final return from the routine. I'm rather confused however, I have no idea why a flags pop would hang the hardware.
-d
-- "The difference between 'involvement' and 'commitment' is like an eggs-and-ham breakfast: the chicken was 'involved' - the pig was 'committed'."
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