Re: [BIG] Re: sched rsdl fix for 0.28
On Sunday 11 March 2007 20:21, Con Kolivas wrote: > On Sunday 11 March 2007 20:10, Nicolas Mailhot wrote: > > Le dimanche 11 mars 2007 à 11:07 +1100, Con Kolivas a écrit : > > > sched rsdl fix > > > > Doesn't change a thing. Always breaks at the same place (though > > depending on hardware timings? the trace is not always the same). Pretty > > sure nothing happens before this failure > > Bummer. The only other thing to try is v0.29 posted recently. I still > haven't got a good way to reproduce this locally but I'll keep trying. > Thanks for testing. Oh and if that oopses and you still have the time, could you please test 0.29 on 2.6.20.2 (available from same directory). -- -ck - 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/
Re: [BIG] Re: sched rsdl fix for 0.28
On Sunday 11 March 2007 20:10, Nicolas Mailhot wrote: > Le dimanche 11 mars 2007 à 11:07 +1100, Con Kolivas a écrit : > > sched rsdl fix > > Doesn't change a thing. Always breaks at the same place (though > depending on hardware timings? the trace is not always the same). Pretty > sure nothing happens before this failure Bummer. The only other thing to try is v0.29 posted recently. I still haven't got a good way to reproduce this locally but I'll keep trying. Thanks for testing. -- -ck - 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/
[BIG] Re: sched rsdl fix for 0.28
Le dimanche 11 mars 2007 à 11:07 +1100, Con Kolivas a écrit : > sched rsdl fix Doesn't change a thing. Always breaks at the same place (though depending on hardware timings? the trace is not always the same). Pretty sure nothing happens before this failure -- Nicolas Mailhot signature.asc Description: Ceci est une partie de message numériquement signée
sched rsdl fix for 0.28
Here's a big bugfix for sched rsdl 0.28
---
kernel/sched.c |7 +++
1 file changed, 7 insertions(+)
Index: linux-2.6.21-rc3-mm2/kernel/sched.c
===
--- linux-2.6.21-rc3-mm2.orig/kernel/sched.c2007-03-11 11:04:38.0
+1100
+++ linux-2.6.21-rc3-mm2/kernel/sched.c 2007-03-11 11:05:46.0 +1100
@@ -3328,6 +3328,13 @@ static inline void rotate_runqueue_prior
int new_prio_level, remaining_quota = rq_quota(rq, rq->prio_level);
struct prio_array *array = rq->active;
+ /*
+* Make sure we don't have tasks still on the active array that
+* haven't run due to not preempting (merging or smp balancing)
+*/
+ if (find_next_bit(rq->dyn_bitmap, MAX_PRIO, MAX_RT_PRIO) <
+ rq->prio_level)
+ return;
if (rq->prio_level > MAX_PRIO - 2) {
/* Major rotation required */
struct prio_array *new_queue = rq->expired;
--
-ck
-
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