Suresh Siddha f6c3f1686e sched: Fix nohz balance kick ...

There's a situation where the nohz balancer will try to wake itself:

cpu-x is idle which is also ilb_cpu
got a scheduler tick during idle
and the nohz_kick_needed() in trigger_load_balance() checks for
rq_x->nr_running which might not be zero (because of someone waking a
task on this rq etc) and this leads to the situation of the cpu-x
sending a kick to itself.

And this can cause a lockup.

Avoid this by not marking ourself eligible for kicking.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1284400941.2684.19.camel@sbsiddha-MOBL3.sc.intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2010-09-21 13:50:50 +02:00

..

debug

Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-09-08 11:13:42 -07:00

gcov

gcov: fix null-pointer dereference for certain module types

2010-09-09 18:57:23 -07:00

irq

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power

Merge branch 'pm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6

2010-09-11 15:50:53 -07:00

time

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trace

Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2010-09-10 07:31:24 -07:00

.gitignore

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acct.c

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async.c

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audit_tree.c

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audit_watch.c

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audit.c

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audit.h

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auditfilter.c

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auditsc.c

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backtracetest.c

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bounds.c

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capability.c

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cgroup_freezer.c

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cgroup.c

cgroups: fix API thinko

2010-09-09 18:57:23 -07:00

compat.c

compat: Make compat_alloc_user_space() incorporate the access_ok()

2010-09-14 16:08:45 -07:00

configs.c

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cpu.c

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cpuset.c

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cred.c

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delayacct.c

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dma.c

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early_res.c

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elfcore.c

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exec_domain.c

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exit.c

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extable.c

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fork.c

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freezer.c

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futex_compat.c

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futex.c

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groups.c

kernel/groups.c: fix integer overflow in groups_search

2010-09-09 18:57:24 -07:00

hrtimer.c

gcc-4.6: kernel/*: Fix unused but set warnings

2010-09-05 14:36:58 +02:00

hung_task.c

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hw_breakpoint.c

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itimer.c

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kallsyms.c

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Kconfig.freezer

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Kconfig.hz

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Kconfig.locks

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Kconfig.preempt

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kexec.c

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kfifo.c

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kmod.c

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kprobes.c

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ksysfs.c

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kthread.c

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latencytop.c

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lockdep_internals.h

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lockdep_proc.c

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lockdep_states.h

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lockdep.c

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Makefile

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module.c

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mutex-debug.c

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mutex-debug.h

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mutex.c

mutex: Fix annotations to include it in kernel-locking docbook

2010-09-03 08:19:51 +02:00

mutex.h

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notifier.c

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ns_cgroup.c

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nsproxy.c

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padata.c

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panic.c

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params.c

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perf_event.c

perf: Fix CPU hotplug

2010-09-09 20:38:52 +02:00

pid_namespace.c

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pid.c

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pm_qos_params.c

PM QoS: Correct pr_debug() misuse and improve parameter checks

2010-09-11 00:53:05 +02:00

posix-cpu-timers.c

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posix-timers.c

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printk.c

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profile.c

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ptrace.c

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range.c

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rcupdate.c

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rcutiny_plugin.h

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rcutiny.c

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rcutorture.c

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rcutree_plugin.h

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rcutree_trace.c

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rcutree.c

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rcutree.h

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relay.c

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res_counter.c

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resource.c

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rtmutex_common.h

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rtmutex-debug.c

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rtmutex-debug.h

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rtmutex-tester.c

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rtmutex.c

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rtmutex.h

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rwsem.c

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sched_clock.c

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sched_cpupri.c

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sched_cpupri.h

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sched_debug.c

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sched_fair.c

sched: Fix nohz balance kick

2010-09-21 13:50:50 +02:00

sched_features.h

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sched_idletask.c

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sched_rt.c

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sched_stats.h

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sched.c

sched: Fix user time incorrectly accounted as system time on 32-bit

2010-09-15 10:41:36 +02:00

seccomp.c

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semaphore.c

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signal.c

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smp.c

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softirq.c

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spinlock.c

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srcu.c

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stacktrace.c

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stop_machine.c

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sys_ni.c

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sys.c

pid: make setpgid() system call use RCU read-side critical section

2010-08-31 17:00:18 -07:00

sysctl_binary.c

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sysctl_check.c

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sysctl.c

gcc-4.6: kernel/*: Fix unused but set warnings

2010-09-05 14:36:58 +02:00

taskstats.c

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test_kprobes.c

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time.c

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timeconst.pl

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timer.c

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tracepoint.c

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tsacct.c

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uid16.c

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up.c

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user_namespace.c

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user-return-notifier.c

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user.c

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utsname_sysctl.c

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utsname.c

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wait.c

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watchdog.c

lockup_detector: Sync touch_*_watchdog back to old semantics

2010-09-01 10:02:28 +02:00

workqueue_sched.h

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workqueue.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq

2010-09-07 14:08:17 -07:00