Hello, Juri Lelli <[email protected]> writes:
> When a task is using SCHED_DEADLINE and the user setschedules it to a > different > class its sched_dl_entity static parameters are not cleaned up. This causes a > bug if the user sets it back to SCHED_DEADLINE with the same parameters again. > The problem resides in the check we perform at the very beginning of > dl_overflow(): > > if (new_bw == p->dl.dl_bw) > return 0; > > This condition is met in the case depicted above, so the function returns and > dl_b->total_bw is not updated (the p->dl.dl_bw is not added to it). After > this, > admission control is broken. > > This patch fixes the thing, properly clearing static parameters for a task > that ceases to use SCHED_DEADLINE. Thanks, this fixes the issue I had: Tested-by: Vincent Legout <[email protected]> Thanks, Vincent -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
