On Fri, 2006-10-13 at 18:09 +0100, Alan Cox wrote: > Ar Gwe, 2006-10-13 am 12:34 -0400, ysgrifennodd Adam Belay: > > I agree this needs to be fixed. However, as I previously mentioned, > > this isn't the right place to attack the problem. Remember, this wasn't > > originally a kernel regression. Rather it's a workaround for a known > > It's a kernel regression. It used to be reliable to read X resource > addresses at any time. Not true, reading these registers during a BIST has always been a problem. > > > Finally, it's worth noting that this issue is really a corner-case, and > > in most systems it's extremely rare that even incorrect userspace apps > > would have any issue. > > Except just occasionally and randomly in the field, probably almost > undebuggable and irreproducable - the very worst conceivable kind of > bug. > Which is why returning an error code during device transitions is a reasonable compromise between correctness and practicality. -Adam
