usb/141313: nvidia USB 2.0 controller - stops copying on USB

[Jan Marek]

>Number:         141313
>Category:       usb
>Synopsis:       nvidia USB 2.0 controller - stops copying on USB
>Confidential:   no
>Severity:       serious
>Priority:       low
>Responsible:    freebsd-usb
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Dec 09 08:20:01 UTC 2009
>Closed-Date:
>Last-Modified:
>Originator:     Jan Marek
>Release:        FreeBSD 8.0-RELEASE-p1
>Organization:
>Environment:
FreeBSD honzik.ath.cx 8.0-RELEASE-p1 FreeBSD 8.0-RELEASE-p1 #0: Tue Dec  8 20:17:04 CET 2009     root at honzik.ath.cx:/usr/obj/usr/src/sys/ARENA1.5  i386
>Description:
When copying to / from USB, using ehci (USB2.0) the copying stops for long period of time, then sometimes  resumes or gives error 

g_vfs_done():da0s1[WRITE(offset=1699840, length=4096)]error = 5 (this particular on msdosfs USB drive)

This happens irregularly, but almost every time copying more data, the copying is also followed by ehci interrupt storm. Tried disable firewire controler and Legacy USB support in BIOS, no change.

Tried this on i386,FreeBSD 8.0-RELEASE-p1, FreeBSD 8.0-STABLE
>How-To-Repeat:
Copying 100MB+ data to / from USB
>Fix:
disable USB 2.0 in BIOS

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