RE: Scheduler question

From: Dimitris Michailidis (dimitris@cthulhu.engr.sgi.com)
Date: Fri Aug 25 2000 - 13:47:57 EST

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In reply to: DJBARROW@de.ibm.com: "Scheduler question"
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On 25-Aug-2000 DJBARROW@de.ibm.com wrote:

> We have noticed that do_bottom_half leaves interrupts disabled on the local
> cpu when it exits,
> This results in the tq_scheduler task queue sometimes running with
> interrupts disabled.
> Which has been causing some sad happenings in our code,we were not
> expecting this & it
> has caused some grief in drivers.

2.4 does

handle_tq_scheduler:
        /*
         * do not run the task queue with disabled interrupts,
         * cli() wouldn't work on SMP
         */
        sti();
        run_task_queue(&tq_scheduler);

-- 
Dimitris Michailidis                    dimitris@engr.sgi.com
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