>Number:         16379
>Category:       kern
>Synopsis:       Serious problems with the ohci driver on a DEC PWS 500au (Alpha)
>Confidential:   no
>Severity:       critical
>Priority:       high
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Tue Apr 16 16:41:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator:     Reinoud Zandijk
>Release:        NetBSD 1.5ZC
>Organization:
	
>Environment:
	
	
System: NetBSD starbuck.kasbah 1.5ZC NetBSD 1.5ZC (config.starbuck) #8: Mon Apr 15 01:00:44 CEST 2002 root@starbuck.13thmonkey.org:/usr/sources/cvs.netbsd.org/src/sys/arch/alpha/compile/config.starbuck alpha
Architecture: alpha
Machine: DEC PersonalWorkStation 500au Alpha machine with PCI devices.

The build in USB device :
vendor 0x1080 product 0xc693 (USB serial bus, interface 0x10) at pci0 dev 7 function 3 not configured

>Description:
When i reinstalled my Alpha i came to this same problem again : the GENERIC kernel
does boot but panics the machine later on IDE disk activity... resulting in interrupt
lossage and propable data corruption. The USB is an integrated device so i can't just
rip it out ... i've build a custum kernel without the USB drivers and all works fine
but offcource no USB.

In backtalk with Jason Thorpe its propably a busspace barrier problem that the driver
seems to lack resulting in this mayhem.

	
>How-To-Repeat:
Boot a GENERIC kernel on a DEC PWS 500au and you are in trouble.

	
>Fix:
Create a kernel without the USB drivers uhci and ohci (probed)
	

>Release-Note:
>Audit-Trail:
>Unformatted: