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Mandeep Singh Baines baf48f6577 softlock: fix false panic which can occur if softlockup_thresh is reduced 
At run-time, if softlockup_thresh is changed to a much lower value,
touch_timestamp is likely to be much older than the new softlock_thresh.

This will cause a false softlockup to be detected. If softlockup_panic
is enabled, the system will panic.

The fix is to touch all watchdogs before changing softlockup_thresh.

Signed-off-by: Mandeep Singh Baines <msb@google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-01-14 11:48:07 +01:00
..
irq
async: Asynchronous function calls to speed up kernel boot
2009-01-07 08:45:46 -08:00
power
Merge branch 'linus' into release
2009-01-09 03:39:43 -05:00
time
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
2009-01-07 11:31:52 -08:00
trace
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile
2009-01-09 12:43:06 -08:00
.gitignore
…
acct.c
CRED: Wrap task credential accesses in the core kernel
2008-11-14 10:39:12 +11:00
async.c
async: fix __lowest_in_progress()
2009-01-12 16:39:58 -08:00
audit_tree.c
audit: validate comparison operations, store them in sane form
2009-01-04 15:14:42 -05:00
audit.c
[PATCH] fix broken timestamps in AVC generated by kernel threads
2008-12-09 02:27:41 -05:00
audit.h
fixing audit rule ordering mess, part 1
2009-01-04 15:14:41 -05:00
auditfilter.c
audit: validate comparison operations, store them in sane form
2009-01-04 15:14:42 -05:00
auditsc.c
make sure that filterkey of task,always rules is reported
2009-01-04 15:14:42 -05:00
backtracetest.c
…
bounds.c
…
capability.c
Merge branch 'next' into for-linus
2009-01-07 09:58:22 +11:00
cgroup_debug.c
…
cgroup_freezer.c
freezer_cg: disable writing freezer.state of root cgroup
2008-11-12 17:17:16 -08:00
cgroup.c
cgroups: add css_tryget()
2009-01-08 08:31:10 -08:00
compat.c
Allow times and time system calls to return small negative values
2009-01-06 15:59:13 -08:00
configs.c
…
cpu.c
stop_machine/cpu hotplug: fix disable_nonboot_cpus
2009-01-07 11:36:14 -08:00
cpuset.c
cpuset: remove remaining pointers to cpumask_t
2009-01-08 08:31:11 -08:00
cred-internals.h
CRED: Inaugurate COW credentials
2008-11-14 10:39:23 +11:00
cred.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
2009-01-09 13:59:25 -08:00
delayacct.c
schedstat: consolidate per-task cpu runtime stats
2008-12-18 13:54:01 +01:00
dma-coherent.c
dma-coherent: catch oversized requests to dma_alloc_from_coherent()
2009-01-06 15:59:31 -08:00
dma.c
…
exec_domain.c
…
exit.c
mm: introduce get_mm_hiwater_xxx(), fix taskstats->hiwater_xxx accounting
2009-01-06 15:59:09 -08:00
extable.c
Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-30 16:10:19 -08:00
fork.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-2.6-nommu
2009-01-09 14:00:58 -08:00
freezer.c
…
futex_compat.c
CRED: Use RCU to access another task's creds and to release a task's own creds
2008-11-14 10:39:19 +11:00
futex.c
Merge branches 'core/futexes', 'core/locking', 'core/rcu' and 'linus' into core/urgent
2009-01-06 09:32:11 +01:00
hrtimer.c
hrtimer: splitout peek ahead functionality, fix
2009-01-05 14:11:10 +01:00
itimer.c
…
kallsyms.c
allow stripping of generated symbols under CONFIG_KALLSYMS_ALL
2008-12-19 22:47:10 +01:00
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.preempt
rcu: provide RCU options on non-preempt architectures too
2008-12-25 09:31:28 +01:00
kexec.c
cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: core
2009-01-01 10:12:15 +10:30
kfifo.c
…
kgdb.c
…
kmod.c
kmod: fix varargs kernel-doc
2009-01-06 15:59:27 -08:00
kprobes.c
kprobes: support probing module __init function
2009-01-06 15:59:21 -08:00
ksysfs.c
kernel/ksysfs.c:fix dependence on CONFIG_NET
2009-01-06 10:44:31 -08:00
kthread.c
tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()
2008-11-16 09:01:36 +01:00
latencytop.c
KSYM_SYMBOL_LEN fixes
2008-12-10 08:01:54 -08:00
lockdep_internals.h
…
lockdep_proc.c
…
lockdep.c
Merge branch 'core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-30 16:10:19 -08:00
Makefile
smp_call_function_single(): be slightly less stupid
2009-01-11 03:41:58 +01:00
marker.c
markers/tracpoints: fix non-modular build
2008-11-16 09:52:03 +01:00
module.c
async: Asynchronous function calls to speed up kernel boot
2009-01-07 08:45:46 -08:00
mutex-debug.c
…
mutex-debug.h
…
mutex.c
mutex: __used is needed for function referenced only from inline asm
2008-11-24 10:00:28 +01:00
mutex.h
…
notifier.c
Merge commit 'v2.6.28-rc6' into core/debug
2008-11-26 08:22:50 +01:00
ns_cgroup.c
ns_cgroup: remove unused spinlock
2009-01-08 08:31:02 -08:00
nsproxy.c
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
panic.c
oops: increment the oops UUID every time we oops
2009-01-06 15:59:12 -08:00
params.c
…
pid_namespace.c
…
pid.c
pid: generalize task_active_pid_ns
2009-01-08 08:31:12 -08:00
pm_qos_params.c
…
posix-cpu-timers.c
Merge commit 'v2.6.28' into core/core
2008-12-25 13:51:46 +01:00
posix-timers.c
Merge branches 'timers/clocksource', 'timers/hpet', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/rtc' into timers/core
2008-12-25 18:02:25 +01:00
printk.c
trivial: printk: fix indentation of new_text_line declaration
2009-01-06 11:28:06 +01:00
profile.c
profile: don't include <asm/ptrace.h> twice.
2009-01-06 15:59:14 -08:00
ptrace.c
Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-28 12:21:10 -08:00
rcuclassic.c
rcu: add __cpuinit to rcu_init_percpu_data()
2009-01-14 11:26:40 +01:00
rcupdate.c
rcu: eliminate synchronize_rcu_xxx macro
2009-01-05 10:18:08 +01:00
rcupreempt_trace.c
"Tree RCU": scalable classic RCU implementation
2008-12-18 21:56:04 +01:00
rcupreempt.c
rcu: eliminate synchronize_rcu_xxx macro
2009-01-05 10:18:08 +01:00
rcutorture.c
rcu: fix bug in rcutorture system-shutdown code
2009-01-07 23:36:25 +01:00
rcutree_trace.c
"Tree RCU": scalable classic RCU implementation
2008-12-18 21:56:04 +01:00
rcutree.c
rcu: add __cpuinit to rcu_init_percpu_data()
2009-01-14 11:26:40 +01:00
relay.c
relayfs: fix infinite loop with splice()
2008-12-10 08:01:52 -08:00
res_counter.c
memcg: memory cgroup resource counters for hierarchy
2009-01-08 08:31:05 -08:00
resource.c
resource: allow MMIO exclusivity for device drivers
2009-01-07 11:12:32 -08:00
rtmutex_common.h
…
rtmutex-debug.c
…
rtmutex-debug.h
…
rtmutex-tester.c
…
rtmutex.c
…
rtmutex.h
…
rwsem.c
…
sched_clock.c
sched_clock: prevent scd->clock from moving backwards, take #2
2008-12-31 09:53:21 +01:00
sched_cpupri.c
sched: fix section mismatch
2009-01-06 11:07:15 +01:00
sched_cpupri.h
sched: convert struct cpupri_vec cpumask_var_t.
2008-11-24 17:52:22 +01:00
sched_debug.c
sched: partly revert "sched debug: remove NULL checking in print_cfs_rt_rq()"
2009-01-11 02:40:32 +01:00
sched_fair.c
generic swap(): sched: remove local swap() macro
2009-01-08 08:31:15 -08:00
sched_features.h
sched: backward looking buddy
2008-11-05 10:30:14 +01:00
sched_idletask.c
…
sched_rt.c
sched: put back some stack hog changes that were undone in kernel/sched.c
2009-01-03 19:00:09 +01:00
sched_stats.h
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-cpumask into merge-rr-cpumask
2009-01-03 18:53:31 +01:00
sched.c
kernel/sched.c: add missing forward declaration for 'double_rq_lock'
2009-01-11 13:06:07 +01:00
seccomp.c
…
semaphore.c
…
signal.c
SEND_SIG_NOINFO: set si_pid to tgid instead of pid
2009-01-06 15:59:29 -08:00
smp.c
cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: core
2009-01-01 10:12:15 +10:30
softirq.c
Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-01-03 12:04:39 -08:00
softlockup.c
softlock: fix false panic which can occur if softlockup_thresh is reduced
2009-01-14 11:48:07 +01:00
spinlock.c
…
srcu.c
…
stacktrace.c
stacktrace: provide save_stack_trace_tsk() weak alias
2008-12-25 11:44:43 +01:00
stop_machine.c
stop_machine: introduce stop_machine_create/destroy.
2009-01-05 08:40:14 +10:30
sys_ni.c
reintroduce accept4
2008-11-19 18:49:57 -08:00
sys.c
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2009-01-06 17:10:33 -08:00
sysctl_check.c
…
sysctl.c
softlock: fix false panic which can occur if softlockup_thresh is reduced
2009-01-14 11:48:07 +01:00
taskstats.c
cpumask: convert rest of files in kernel/
2009-01-01 10:12:28 +10:30
test_kprobes.c
kprobes: add tests for register_kprobes
2009-01-06 15:59:20 -08:00
time.c
Allow times and time system calls to return small negative values
2009-01-06 15:59:13 -08:00
timeconst.pl
…
timer.c
[PATCH] idle cputime accounting
2008-12-31 15:11:46 +01:00
tracepoint.c
markers/tracpoints: fix non-modular build
2008-11-16 09:52:03 +01:00
tsacct.c
mm: introduce get_mm_hiwater_xxx(), fix taskstats->hiwater_xxx accounting
2009-01-06 15:59:09 -08:00
uid16.c
CRED: Wrap current->cred and a few other accessors
2008-11-14 10:39:18 +11:00
up.c
smp_call_function_single(): be slightly less stupid, fix #2
2009-01-12 16:04:37 +01:00
user_namespace.c
User namespaces: set of cleanups (v2)
2008-11-24 18:57:41 -05:00
user.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-12-28 12:27:58 -08:00
utsname_sysctl.c
…
utsname.c
…
wait.c
…
workqueue.c
cpumask: convert kernel/workqueue.c
2009-01-01 10:12:25 +10:30