problem in locking a task
From: Suresh Subramanian
Date: Wed Oct 22 2003 - 03:25:08 EST
Hello everybody
Problem Statement: Command to lock the processor with a specific task or
function & disable the scheduler from preempting the function untill the
task reaches its completion.
Probable Solutions :using 1)spin_lock & spin_unlock
2)lock_kernel & unlock_kernel
3)cli(for disabling the timer interrupt to
the scheduler)
4)disable_irq(0) &
enable_irq(0)(for the same reason stated above)
Issues: Unable to create test stubs or scenarios where the processor is
scheduled between several processes, since a sleep command relinquishes the
processor voluntarily & a loop ties the processor till its completion.
Required Solutions: Either the generation of suitable test stubs or a new
solution catering to our needs.
Thank you.
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