Liu Hua 96f6aea271 hung_task: check the value of "sysctl_hung_task_timeout_sec" ...

commit 80df284765 upstream.

As sysctl_hung_task_timeout_sec is unsigned long, when this value is
larger then LONG_MAX/HZ, the function schedule_timeout_interruptible in
watchdog will return immediately without sleep and with print :

  schedule_timeout: wrong timeout value ffffffffffffff83

and then the funtion watchdog will call schedule_timeout_interruptible
again and again.  The screen will be filled with

	"schedule_timeout: wrong timeout value ffffffffffffff83"

This patch does some check and correction in sysctl, to let the function
schedule_timeout_interruptible allways get the valid parameter.

Signed-off-by: Liu Hua <sdu.liu@huawei.com>
Tested-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2014-05-06 07:51:45 -07:00

..

debug

kdb,vt_console: Fix missed data due to pager overruns

2012-10-21 09:27:59 -07:00

events

perf: Fix hotplug splat

2014-03-11 16:10:02 -07:00

gcov

…

irq

genirq: Remove racy waitqueue_active check

2014-03-23 21:37:05 -07:00

power

PM / Hibernate: Hibernate/thaw fixes/improvements

2014-02-20 10:45:33 -08:00

sched

sched: Fix double normalization of vruntime

2014-03-23 21:37:03 -07:00

time

time: Fix overflow when HZ is smaller than 60

2014-02-22 10:32:46 -08:00

trace

tracing: Do not add event files for modules that fail tracepoints

2014-03-23 21:37:06 -07:00

.gitignore

…

acct.c

Merge branch 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2012-01-08 12:19:57 -08:00

async.c

Fix a dead loop in async_synchronize_full()

2012-10-02 10:30:35 -07:00

audit_tree.c

kernel/audit_tree.c: tree will leak memory when failure occurs in audit_trim_trees()

2013-05-11 13:48:14 -07:00

audit_watch.c

…

audit.c

audit: wait_for_auditd() should use TASK_UNINTERRUPTIBLE

2014-04-14 06:44:15 -07:00

audit.h

audit: remove AUDIT_SETUP_CONTEXT as it isn't used

2012-01-17 16:16:57 -05:00

auditfilter.c

audit: allow interfield comparison in audit rules

2012-01-17 16:17:01 -05:00

auditsc.c

kernel-doc: fix new warnings in auditsc.c

2012-01-23 08:44:53 -08:00

backtracetest.c

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bounds.c

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capability.c

Revert "capabitlies: ns_capable can use the cap helpers rather than lsm call"

2012-01-17 10:19:41 -08:00

cgroup_freezer.c

cgroup: cgroup_subsys->fork() should be called after the task is added to css_set

2014-03-11 16:10:03 -07:00

cgroup.c

cgroup: cgroup_subsys->fork() should be called after the task is added to css_set

2014-03-11 16:10:03 -07:00

compat.c

compat: Fix RT signal mask corruption via sigprocmask

2012-05-10 08:58:33 -07:00

configs.c

…

cpu_pm.c

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cpu.c

CPU hotplug: provide a generic helper to disable/enable CPU hotplug

2013-06-20 11:58:44 -07:00

cpuset.c

cpuset: fix a race condition in __cpuset_node_allowed_softwall()

2014-03-23 21:37:05 -07:00

crash_dump.c

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cred.c

cred: copy_process() should clear child->replacement_session_keyring

2012-04-11 08:20:11 -07:00

delayacct.c

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dma.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

elfcore.c

…

exec_domain.c

…

exit.c

wait: fix reparent_leader() vs EXIT_DEAD->EXIT_ZOMBIE race

2014-04-26 17:13:20 -07:00

extable.c

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fork.c

cgroup: cgroup_subsys->fork() should be called after the task is added to css_set

2014-03-11 16:10:03 -07:00

freezer.c

PM / Freezer: Remove references to TIF_FREEZE in comments

2012-03-04 23:08:54 +01:00

futex_compat.c

futex: Revert "futex: Mark get_robust_list as deprecated"

2013-02-28 06:59:01 -08:00

futex.c

futex: fix handling of read-only-mapped hugepages

2013-12-20 07:34:19 -08:00

groups.c

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hrtimer.c

hrtimers: Move SMP function call to thread context

2013-07-28 16:26:47 -07:00

hung_task.c

hung_task: fix the broken rcu_lock_break() logic

2012-03-05 15:49:42 -08:00

irq_work.c

irq_work: fix compile failure on tile from missing include

2012-04-13 13:15:16 -04:00

itimer.c

itimer: Use printk_once instead of WARN_ONCE

2012-04-10 11:00:30 +02:00

jump_label.c

static keys: Inline the static_key_enabled() function

2012-02-28 20:01:08 +01:00

kallsyms.c

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Kconfig.freezer

…

Kconfig.hz

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Kconfig.locks

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

Kconfig.preempt

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

kexec.c

Merge branch 'akpm' (Andrew's patch-bomb)

2012-03-28 17:19:28 -07:00

kfifo.c

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kmod.c

usermodehelper: check subprocess_info->path != NULL

2013-05-19 10:54:50 -07:00

kprobes.c

kprobes: return proper error code from register_kprobe()

2012-03-05 15:49:42 -08:00

ksysfs.c

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kthread.c

kthread_worker: reimplement flush_kthread_work() to allow freeing the work item being executed

2012-10-02 10:30:40 -07:00

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

lockdep: Add CPU-idle/offline warning to lockdep-RCU splat

2012-02-21 09:06:06 -08:00

Makefile

sysctl: Move the implementation into fs/proc/proc_sysctl.c

2012-01-24 16:37:54 -08:00

module.c

module: fix out-by-one error in kallsyms

2012-11-26 11:37:41 -08:00

mutex-debug.c

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mutex-debug.h

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mutex.c

sched/rt: Use schedule_preempt_disabled()

2012-03-01 10:28:03 +01:00

mutex.h

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notifier.c

…

nsproxy.c

…

padata.c

padata: Fix cpu hotplug

2012-03-29 19:52:46 +08:00

panic.c

panic: fix a possible deadlock in panic()

2013-04-12 09:38:47 -07:00

params.c

params: <level>_initcall-like kernel parameters

2012-03-26 12:50:51 +10:30

pid_namespace.c

pidns: add reboot_pid_ns() to handle the reboot syscall

2012-03-28 17:14:36 -07:00

pid.c

vfs: fix panic in __d_lookup() with high dentry hashtable counts

2012-02-13 20:45:38 -05:00

posix-cpu-timers.c

posix-cpu-timers: Fix nanosleep task_struct leak

2013-02-28 06:58:59 -08:00

posix-timers.c

posix-timer: Don't call idr_find() with out-of-range ID

2013-03-04 06:06:38 +08:00

printk.c

printk: Fix rq->lock vs logbuf_lock unlock lock inversion

2014-04-14 06:44:16 -07:00

profile.c

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ptrace.c

exec/ptrace: fix get_dumpable() incorrect tests

2013-11-29 10:50:34 -08:00

range.c

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rcu.h

rcu: Allow nesting of rcu_idle_enter() and rcu_idle_exit()

2012-02-21 09:06:12 -08:00

rcupdate.c

rcu: Check for illegal use of RCU from offlined CPUs

2012-02-21 09:06:03 -08:00

rcutiny_plugin.h

rcu: Simplify unboosting checks

2012-02-21 09:03:43 -08:00

rcutiny.c

rcu: Add RCU_NONIDLE() for idle-loop RCU read-side critical sections

2012-02-21 09:06:13 -08:00

rcutorture.c

PTR_ERR should be called before its argument is cleared.

2012-02-21 09:06:10 -08:00

rcutree_plugin.h

rcu: Hold off RCU_FAST_NO_HZ after timer posted

2012-02-21 09:42:30 -08:00

rcutree_trace.c

rcu: Rework detection of use of RCU by offline CPUs

2012-02-21 09:06:07 -08:00

rcutree.c

rcu: Fix batch-limit size problem

2012-12-17 10:37:46 -08:00

rcutree.h

rcu: Rework detection of use of RCU by offline CPUs

2012-02-21 09:06:07 -08:00

relay.c

splice: fix racy pipe->buffers uses

2012-07-16 09:04:42 -07:00

res_counter.c

net: introduce res_counter_charge_nofail() for socket allocations

2012-01-22 15:08:46 -05:00

resource.c

kernel/resource.c: fix stack overflow in __reserve_region_with_split()

2013-02-14 10:48:53 -08:00

rtmutex_common.h

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rtmutex-debug.c

…

rtmutex-debug.h

…

rtmutex-tester.c

rtmutex-tester: convert sysdev_class to a regular subsystem

2011-12-14 14:54:22 -08:00

rtmutex.c

Revert "rcu: Permit rt_mutex_unlock() with irqs disabled"

2011-12-11 10:33:18 -08:00

rtmutex.h

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rwsem.c

Remove all #inclusions of asm/system.h

2012-03-28 18:30:03 +01:00

seccomp.c

seccomp: audit abnormal end to a process due to seccomp

2012-01-17 16:16:55 -05:00

semaphore.c

…

signal.c

kernel/signal.c: stop info leak via the tkill and the tgkill syscalls

2013-04-25 21:19:54 -07:00

smp.c

smp: Fix SMP function call empty cpu mask race

2013-02-03 18:24:42 -06:00

softirq.c

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

2012-03-20 10:32:09 -07:00

spinlock.c

locking/kconfig: Simplify INLINE_SPIN_UNLOCK usage

2012-03-23 13:18:57 +01:00

srcu.c

rcu: Call out dangers of expedited RCU primitives

2012-02-21 09:06:08 -08:00

stacktrace.c

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stop_machine.c

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sys_ni.c

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sys.c

reboot: rigrate shutdown/reboot to boot cpu

2013-06-20 11:58:45 -07:00

sysctl_binary.c

sysctl: fix null checking in bin_dn_node_address()

2013-03-04 06:06:41 +08:00

sysctl.c

hung_task: check the value of "sysctl_hung_task_timeout_sec"

2014-05-06 07:51:45 -07:00

taskstats.c

…

test_kprobes.c

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time.c

time: Remove bogus comments

2012-03-15 18:17:55 -07:00

timeconst.pl

timeconst.pl: Eliminate Perl warning

2013-02-28 06:58:58 -08:00

timer.c

timer: Fix jiffies wrap behavior of round_jiffies_common()

2013-07-21 18:19:01 -07:00

tracepoint.c

tracing: Do not add event files for modules that fail tracepoints

2014-03-23 21:37:06 -07:00

tsacct.c

[S390] cputime: add sparse checking and cleanup

2011-12-15 14:56:19 +01:00

uid16.c

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up.c

…

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

lockdep/waitqueues: Add better annotation

2011-12-21 10:07:39 +01:00

watchdog.c

watchdog: using u64 in get_sample_period()

2012-12-03 11:47:17 -08:00

workqueue_sched.h

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workqueue.c

workqueue: cond_resched() after processing each work item

2014-04-14 06:44:16 -07:00