Re: System hangs during boot when usb printer is plugged in

["Stathis Kamperis" <ekamperi%gmail.com@localhost>]

2008/9/29, Greg Troxel <gdt%ir.bbn.com@localhost>:
> Whenever I plug in my usb printer (HP Deskjet F2180), the system hangs
>   during boot just after some ehci related messages are printed, eg
>
>   ehci0 at pci0 dev 3 function 3: Silicon Integrated System 7002 USB 2.0
>   host controller (rev. 0x00)
>   ehci0: interrupting at ioapic0 pin 23, event channel 9
>   ehci0: EHCI version 1.0
>   ehci0: companion controllers, 2 ports each: ohci0 ohci1 ohci2
>   usb3 at ehci0: USB revision 2.0
>   ehci0: handing over full speed device on port 1 to ohci0
>   [hang]
>
>   If I unplug the printer and then boot, everything works alright.
>
>   I am using NetBSD-4.99.72/i386. The printer used to work with NetBSD 4.
>   What is worth mentioning is that NetBSD-4.99.72/XEN0 works like a charm. 
> See:
>
>   [stathis@netbsd ~] uname -a
>   NetBSD netbsd 4.99.72 NetBSD 4.99.72 (XEN3_DOM0) #0: Fri Aug 29
>   23:49:07 EEST 2008
>   root@netbsd:/usr/obj/sys/arch/i386/compile/XEN3_DOM0 i386
>   [stathis@netbsd ~] dmesg | grep ulpt
>   ulpt0 at uhub0 port 1 configuration 1 interface 1
>   ulpt0: HP Deskjet F2100 series, rev 2.00/1.00, addr 2, iclass 7/1
>   ulpt0: using bi-directional mode
>   [stathis@netbsd ~]
>
>
> I would try plugging the printer in while already up. If you can run
If the system is up and I plug in the printer, everything works ok.

What's really weird is that if I have the printer connected prior to
boot and the system hangs, I can wait a couple of minutes (more or
less), then press some random key and have the boot process resumed.

I guess this means that it doesn't actually hang, but spends time
doing something until a specific timeout gets exhausted (?)

I hope I make any sense at all :)

Best regards,
Stathis Kamperis