Messages in this thread | | | Date | Sun, 30 Dec 2007 22:54:35 +0100 | From | Ingo Molnar <> | Subject | Re: [PATCH] x86: provide a DMI based port 0x80 I/O delay override |
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* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
> You won't bisect obscure timing triggered problems, and the _p users > are almost all for hardware where performance doesn't matter one iota > (eg CMOS).
actually, people have, and i have too. But i agree that io_delay=none would be stupid now, and would probably be stupid in v2.6.26 too.
i also have a debug patch that counts the number of _p() API uses and prints a stacktrace (once per bootup) if it occurs [wrote it 2 weeks ago] - so i agree with you that we can do this more gradually and more intelligently. As long as it does not turn into a BKL situation. It's 2008 in a day and we've still got the NFS client code running under the BKL - quite ridiculous IMO.
Ingo
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