Messages in this thread Patch in this message | | | Date | Sun, 1 Jul 2007 10:45:01 +0200 | From | Ingo Molnar <> | Subject | Re: [patch] CFS scheduler, -v18 |
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Willy,
could you check whether your current v18 CFS tree has the fix below included? I discovered it right after having released v18 so i updated the v18 files in place - but maybe you downloaded an early version? I thought it's relatively harmless, that it would only affect SCHED_IDLE tasks, but maybe it affects nice +19 tasks too on your box!
Ingo
Index: linux/kernel/sched_fair.c =================================================================== --- linux.orig/kernel/sched_fair.c +++ linux/kernel/sched_fair.c @@ -342,8 +342,9 @@ update_stats_enqueue(struct cfs_rq *cfs_ s64 tmp; if (se->wait_runtime < 0) { - tmp = (0 - se->wait_runtime) << NICE_0_SHIFT; - key += (tmp * se->load.inv_weight) >> WMULT_SHIFT; + tmp = -se->wait_runtime; + key += (tmp * se->load.inv_weight) >> + (WMULT_SHIFT - NICE_0_SHIFT); } else { tmp = se->wait_runtime * se->load.weight; key -= tmp >> NICE_0_SHIFT; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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