Subject: port-i386/24665: power cycling printer wedges machine
To: None <>
From: None <>
List: netbsd-bugs
Date: 03/03/2004 21:21:18
>Number:         24665
>Category:       port-i386
>Synopsis:       power cycling printer wedges machine
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-i386-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Mar 04 02:22:00 UTC 2004
>Release:        NetBSD 1.6ZI

System: NetBSD buttercream 1.6ZI NetBSD 1.6ZI (GENERIC) #0: Thu Feb 5 18:09:52 UTC 2004 i386
Architecture: i386
Machine: i386

The various bits of dmesg output related to the printer are:  

pci0 at mainbus0 bus 0: configuration mode 1
pci0: i/o space, memory space enabled, rd/line, rd/mult, wr/inv ok

ohci0 at pci0 dev 1 function 2: Silicon Integrated System 5597/5598 USB host controller (rev. 0x07)
ohci0: interrupting at irq 9    
ohci0: OHCI version 1.0, legacy support

usb0 at ohci0: USB revision 1.0 

uhub0 at usb0
uhub0: Silicon Integra OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 3 ports with 3 removable, self powered 

ulpt0 at uhub0 port 1 configuration 1 interface 0 
ulpt0: Compaq Corporation Compaq A1500, rev 1.10/1.00, addr 2, iclass 7/1
ulpt0: using bi-directional mode

If I unplug the USB cable to the printer I see ulpt0 detach in the 
console messages.  If I plut the USB cable back into the printer,
I see the ulpt0 attach message.  If I unplug the printer power
cord I see the ulpt0 detach message and if I plug the printer power
cord back in, the machine wedges hard.  It will not respond to
the keyboard or pings over the network.


power cycle printer, note that machine is wedged hard.


no idea