Re: [kerneloops] regression in 2.6.27 wrt "lock_page" and the"hwclock" program

[Alan Cox]

> The warning occurs because hwclock uses this dubious sequence of
> code to run "atomic" code:

Nobody should be using old versions of hwclock that do this as they are
not SMP safe.

> So instead just enable interrupts in the pagefault path unconditionally
> if we come from user-space, and handle the fault.

This should definitely also log an error to get users to remove that
rubbish from their PC
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