Broken ep0

Mark Murray mark at
Wed Jul 9 08:53:27 PDT 2003

Maxime Henrion writes:
> > Can you have a look at this please?
> >
> > The symptoms are an ep0 that works for a few packets and then
> > completely stops working. It doesn't respond to pings, nothing.
> I think you and/or Warner got mistaken.  My last round of changes
> to if_ep.c _fixed_ some race conditions that previously weren't a
> problem, but became a problem once Warner flag'd the pccbb interrupts
> INTR_MPSAFE.  It's very possible that there are other problems left
> in the ep(4) driver, but I highly doubt my changes to if_ep.c are the
> culprit.  I'm sorry but I can't do anything for you since I don't
> even have ep(4) hardware here ; I was able to fix the race conditions
> mentioned above because people reported panics with stacktrace that
> made the problem obvious.

OK - problem.

I have a broken driver, with a dodgy patch to "fix" it, and you guys are
both saying "not my problem".

I'm quite happy to make it my problem, but I'll need a bit of help,
please.  Who is it going to be?

Mark Murray
iumop ap!sdn w,I idlaH

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