I know of one (elusive) bug that's not VIA-specific ... if when that's
finally found/clobbered then we still see such misbehavior on VIA,

Is it likely that this impacts more on the VIA than other implementations?
That's my assumption; it matches the pattern I've observed
in most other bugs here.


Come to think of it, have you tested Intel's EHCI implementation found on
newer versions of their chipsets? Is it's reliability more like the VIA or
the NEC?
I've gotten precious few reports from Intel EHCI users; no idea
which end of the spectrum they're on.


There must be other issues not related to the EHCI driver, but
relating to the VT8235 in general on 2.4. ...
Interesting.  I know that VIA has a bit of history with PCI problems,
maybe it's (still) a factor here.

It very well may be. After disabling the VIA USB controllers on this
computer and used the NEC, the system would hang after copying 240Mb of a
1.5Gb file to a USB 2.0 HDD. On the KT133 (and an AMD 756 chipset on an
older Athlon), I wouldn't think twice, the transfer would always work
without ever hanging.
That's also slower hardware.  Transaction timing seems to
be one factor.

- Dave







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