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CVS log for src/sys/dev/usb/ehci.c

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Default branch: MAIN
Current tag: yamt-pdpolicy-base4


Revision 1.108 / (download) - annotate - [select for diffs], Tue Jan 17 12:30:00 2006 UTC (18 years, 2 months ago) by xtraeme
Branch: MAIN
CVS Tags: yamt-uio_vmspace-base5, yamt-pdpolicy-base4, yamt-pdpolicy-base3, yamt-pdpolicy-base2, yamt-pdpolicy-base, peter-altq-base
Branch point for: yamt-pdpolicy, simonb-timecounters, rpaulo-netinet-merge-pcb, peter-altq, elad-kernelauth
Changes since 1.107: +34 -2 lines
Diff to previous 1.107 (colored)

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@:
http://mail-index.netbsd.org/current-users/2006/01/17/0000.html

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