[PATCH 11/11] smp: Move secondary CPU initialization request

Joel Sherrill Joel.Sherrill at OARcorp.com
Mon May 27 16:12:54 UTC 2013

Are you sure it was a scheduling bug and not a dispatch disable nesting problem? If the count does not go back to zero, then a blocked thread will continue to execute.

If it is a bug I would like to know the detailed scenario so I can reproduce it in the simulator.

Sebastian Huber <sebastian.huber at embedded-brains.de> wrote:

On 05/27/2013 04:33 PM, Joel Sherrill wrote:
> The other CPUs are not brought out of reset until this is executed. Did you see a case where the first thread is not executed on the first core?

Not with the current simple SMP scheduler, but this code should not depend on a
particular scheduler implementation.

I will provide an alternative simple SMP scheduler in the next couple of days
since the current one didn't work.  I encountered a situation in which a
blocking thread continued to execute.

Sebastian Huber, embedded brains GmbH

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