Subject: CVS commit: src/sys/dev
To: None <>
From: Juan Romero Pardines <>
List: source-changes
Date: 01/17/2006 12:30:01
Module Name:	src
Committed By:	xtraeme
Date:		Tue Jan 17 12:30:01 UTC 2006

Modified Files:
	src/sys/dev/pci: ehci_pci.c
	src/sys/dev/usb: ehci.c ehcivar.h

Log Message:
From OpenBSD:

Add a workaround for VIA EHCI controllers which, under load, signal qTD
completion before they have performed writeback from the overlay qTD.

This condition would exhibit itself as a umass stall that never recovers.

This fixes the problem reported by Thomas Klausner on current-users@:

To generate a diff of this commit:
cvs rdiff -r1.21 -r1.22 src/sys/dev/pci/ehci_pci.c
cvs rdiff -r1.107 -r1.108 src/sys/dev/usb/ehci.c
cvs rdiff -r1.22 -r1.23 src/sys/dev/usb/ehcivar.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.