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Red Hat Bugzilla – Attachment 868573 Details for
Bug 1065304
kernel/sched: incorrect setup of sched_group->cpu_power for NUMA systems
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[patch]
revert sg->cpu_power setting code
numasched_cpu_power_bug.patch (text/plain), 787 bytes, created by
Pär Lindfors
on 2014-02-27 14:52:55 UTC
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Description:
revert sg->cpu_power setting code
Filename:
MIME Type:
Creator:
Pär Lindfors
Created:
2014-02-27 14:52:55 UTC
Size:
787 bytes
patch
obsolete
>--- sched.c.orig 2014-02-27 19:21:08.277515514 +0100 >+++ sched.c 2014-02-27 19:21:24.069515500 +0100 >@@ -9225,8 +9225,8 @@ > sd->groups = sg; > } > >- /* Weird topologies might otherwise result in a /0 trap */ >- sg->cpu_power = SCHED_LOAD_SCALE * cpumask_weight(d->nodemask); >+ /* reverted by cap */ >+ sg->cpu_power = 0; > cpumask_copy(sched_group_cpus(sg), d->nodemask); > sg->next = sg; > cpumask_or(d->covered, d->covered, d->nodemask); >@@ -9249,7 +9249,8 @@ > "Can not alloc domain group for node %d\n", j); > return -ENOMEM; > } >- sg->cpu_power = SCHED_LOAD_SCALE * cpumask_weight(d->tmpmask); >+ /* reverted by cap */ >+ sg->cpu_power = 0; > cpumask_copy(sched_group_cpus(sg), d->tmpmask); > sg->next = prev->next; > cpumask_or(d->covered, d->covered, d->tmpmask);
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