Timestamp:
07/01/16 07:44:48 (8 years ago)
Author:
Sebastian Huber <sebastian.huber@…>
Branches:
5, master
Children:
c0bd006
Parents:
23dedc44
git-author:
Sebastian Huber <sebastian.huber@…> (07/01/16 07:44:48)
git-committer:
Sebastian Huber <sebastian.huber@…> (07/01/16 09:51:49)
Message:

score: Workaround for #2751

The ARM and PowerPC interrupt epilogues call _Thread_Dispatch() with
interrupts disabled (counter example: SPARC).

On SMP configurations, since inter-processor interrupts set the thread
dispatch necessary indicator this prevents a thread dispatch
notification in post-switch handlers (which all run with interrupts
disabled).

On all configurations, this is a serious issue for the interrupt
latency.

Update #2751

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