On Fri, 24 Aug 2007 09:04:22 -0700
"Luck, Tony" <[email protected]> wrote:
> It is good to avoid registering two clocksources with the same name, but
> the fix might be a bit more fragile than the eariler one that temporarily
> marked the drivers/char/hpet.c one as CONFIG_IA64 only. Given that the
> hang went away when you applied the earlier patch, I conclude that the
> drivers/char/hpet.c code is the one that got selected when you had two
> "hpet" entries ... and that there is something wrong with that code that
> doesn't work right on x86_64. The fix to prevent registering a duplicate
> name is presumably working for you simply because arch/x86_64/kernel/hpet.c
> happens to get there first with its "hpet", so the drivers/char/hpet.c one
> is dropped. If something changed that reversed the order of these registrations,
> then you'd get the "hpet" clocksource that results in a hang.
100% agree
--
Paolo Ornati
Linux 2.6.23-rc3-g1a8f4610-dirty on x86_64
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