> The patch below applies to the 2.5.8 kernel. It does two things:
>
> 1: Fixes a BUG in the migration threads: the interrupts MUST be disabled
> before the double runqueue lock is aquired, otherwise this thing will
> deadlock sometimes.
>
> 2: Streamlines the initialization of migration threads. Instead of
> fiddling around with cache_deccay_ticks, waiting for migration_mask bits
> and relying on the scheduler to distribute the tasks uniformly among
> processors, it starts the migration thread on the boot cpu and uses it
> to reliably distribute the other threads to their target cpus.
>
> Please consider applying it!
looks perfectly good to me. Even with wli's patch i saw some migration
thread initialization weirdnesses.
Ingo
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