On Thu, 27 Mar 2003 16:54:47 +0100,
mikpe@csd.uu.se wrote:
>Keith Owens writes:
> > There are several inconsistencies in the scheduling of idle tasks and,
> > for UP, tracking which task is on the cpu. This patch standardizes
> > idle task scheduling across all architectures and corrects the UP
> > error, it is just a bug fix.
>...
> > To make it worse, on UP a task is assigned to a cpu but never released.
> > Very quickly, all tasks are marked as currently running on cpu 0 :(.
>
>->cpus_runnable and task_has_cpu() are SMP-only, as a quick grep
>through 2.4.20 will tell you. There is no UP bug here to fix.
cpus_runnable has task_has_cpu are not guarded by CONFIG_SMP.
task_set_cpu() is called for UP as well as SMP. UP is missing the
corresponding call to task_release_cpu().
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This archive was generated by hypermail 2b29 : Mon Mar 31 2003 - 22:00:29 EST