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Thomas Gleixner 1fb9b7d29d clockevents: prevent endless loop lockup 
The C1E/HPET bug reports on AMDX2/RS690 systems where tracked down to a
too small value of the HPET minumum delta for programming an event.

The clockevents code needs to enforce an interrupt event on the clock event
device in some cases. The enforcement code was stupid and naive, as it just
added the minimum delta to the current time and tried to reprogram the device.
When the minimum delta is too small, then this loops forever.

Add a sanity check. Allow reprogramming to fail 3 times, then print a warning
and double the minimum delta value to make sure, that this does not happen again.
Use the same function for both tick-oneshot and tick-broadcast code.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-05 11:11:53 +02:00
..
irq
genirq: switch /proc/irq/*/smp_affinity et al to seqfiles
2008-08-12 16:07:30 -07:00
power
ftrace: disable tracing for hibernation
2008-08-28 12:27:39 -07:00
time
clockevents: prevent endless loop lockup
2008-09-05 11:11:53 +02:00
trace
Merge branch 'linus' into cpus4096
2008-07-28 23:32:00 +02:00
.gitignore
Update kernel/.gitignore with new auto-generated files
2008-02-09 23:27:01 -08:00
acct.c
bsdacct: fix and add comments around acct_process()
2008-07-25 10:53:47 -07:00
audit_tree.c
[PATCH] list_for_each_rcu must die: audit
2008-05-17 03:30:23 -04:00
audit.c
[PATCH] Fix the bug of using AUDIT_STATUS_RATE_LIMIT when set fail, no error output.
2008-08-01 12:15:16 -04:00
audit.h
[PATCH 1/2] audit: move extern declarations to audit.h
2008-04-28 06:28:04 -04:00
auditfilter.c
Re: [PATCH] the loginuid field should be output in all AUDIT_CONFIG_CHANGE audit messages
2008-08-01 12:15:03 -04:00
auditsc.c
[PATCH] audit: Moved variable declaration to beginning of function
2008-09-01 23:06:45 -04:00
backtracetest.c
backtrace: replace timer with tasklet + completions
2008-06-27 18:09:16 +02:00
bounds.c
Add kbuild.h that contains common definitions for kbuild users
2008-04-29 08:06:29 -07:00
capability.c
security: Fix setting of PF_SUPERPRIV by __capable()
2008-08-14 22:59:43 +10:00
cgroup_debug.c
CGroup API files: move "releasable" to cgroup_debug subsystem
2008-04-29 08:06:09 -07:00
cgroup.c
cgroup: uninline cgroup_has_css_refs()
2008-07-30 09:41:44 -07:00
compat.c
ntp: support for TAI
2008-05-01 08:03:59 -07:00
configs.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
cpu.c
cpu hotplug: s390 doesn't support additional_cpus anymore.
2008-08-12 16:07:28 -07:00
cpuset.c
cpuset: clean up cpuset hierarchy traversal code
2008-07-30 09:41:44 -07:00
delayacct.c
per-task-delay-accounting: update taskstats for memory reclaim delay
2008-07-25 10:53:47 -07:00
dma-coherent.c
DMA: make dma-coherent.c documentation kdoc-friendly
2008-08-07 06:52:01 -07:00
dma.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
exec_domain.c
[PATCH] kill altroot
2008-07-26 20:53:20 -04:00
exit.c
pid_ns: (BUG 11391) change ->child_reaper when init->group_leader exits
2008-09-02 19:21:38 -07:00
extable.c
module: Don't report discarded init pages as kernel text.
2008-01-29 17:13:18 +11:00
fork.c
mmu-notifiers: core
2008-07-28 16:30:21 -07:00
futex_compat.c
futex_compat __user annotation
2008-03-30 14:18:41 -07:00
futex.c
futexes: fix fault handling in futex_lock_pi
2008-06-23 13:31:15 +02:00
hrtimer.c
Merge branch 'generic-ipi' into generic-ipi-for-linus
2008-07-15 21:55:59 +02:00
itimer.c
ITIMER_REAL: convert to use struct pid
2008-02-08 09:22:29 -08:00
kallsyms.c
kallsyms: fix potential overflow in binary search
2008-07-25 10:53:27 -07:00
Kconfig.hz
sched: fix SCHED_HRTICK dependency
2008-07-28 14:37:38 +02:00
Kconfig.preempt
rcu: move PREEMPT_RCU config option back under PREEMPT
2008-03-10 18:01:20 -07:00
kexec.c
kexec: use a mutex for locking rather than xchg()
2008-08-15 08:35:43 -07:00
kfifo.c
…
kgdb.c
kgdb: fix gdb serial thread queries
2008-08-01 08:39:35 -05:00
kmod.c
call_usermodehelper(): increase reliability
2008-07-25 10:53:28 -07:00
kprobes.c
kprobes: remove redundant config check
2008-07-25 10:53:30 -07:00
ksysfs.c
Kobject: convert remaining kobject_unregister() to kobject_put()
2008-01-24 20:40:40 -08:00
kthread.c
tracehook: wait_task_inactive
2008-07-26 12:00:09 -07:00
latencytop.c
kernel: use non-racy method for proc entries creation
2008-04-29 08:06:22 -07:00
lockdep_internals.h
lockdep: build fix
2008-08-13 12:55:10 +02:00
lockdep_proc.c
lockstat: fix numerical output rounding error
2008-08-26 10:37:46 +02:00
lockdep.c
lockdep: fix invalid list_del_rcu in zap_class
2008-08-27 08:40:36 +02:00
Makefile
Merge branch 'linus' into core/generic-dma-coherent
2008-07-29 00:07:55 +02:00
marker.c
markers: fix markers read barrier for multiple probes
2008-07-30 09:41:45 -07:00
module.c
[module] Don't let gcc inline load_module()
2008-08-25 11:10:26 -07:00
mutex-debug.c
mutex-debug: check mutex magic before owner
2008-05-16 16:53:35 +02:00
mutex-debug.h
…
mutex.c
locking: fix mutex @key parameter kernel-doc notation
2008-07-28 18:12:36 +02:00
mutex.h
…
notifier.c
ipc: re-enable msgmni automatic recomputing msgmni if set to negative
2008-04-29 08:06:13 -07:00
ns_cgroup.c
cgroup_clone: use pid of newly created task for new cgroup
2008-07-25 10:53:37 -07:00
nsproxy.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
panic.c
Add a WARN() macro; this is WARN_ON() + printk arguments
2008-07-25 10:53:29 -07:00
params.c
Add new string functions strict_strto* and convert kernel params to use them
2008-02-08 09:22:41 -08:00
pid_namespace.c
pid_ns: (BUG 11391) change ->child_reaper when init->group_leader exits
2008-09-02 19:21:38 -07:00
pid.c
pidns: remove now unused find_pid function.
2008-07-25 10:53:45 -07:00
pm_qos_params.c
pm_qos_requirement might sleep
2008-09-02 19:21:40 -07:00
posix-cpu-timers.c
posix-timers: print RT watchdog message
2008-05-24 18:49:22 +02:00
posix-timers.c
Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-08-11 16:46:11 -07:00
printk.c
printk: fix comment for printk ratelimiting
2008-07-30 09:41:45 -07:00
profile.c
build kernel/profile.o only when requested
2008-07-25 10:53:27 -07:00
ptrace.c
security: Fix setting of PF_SUPERPRIV by __capable()
2008-08-14 22:59:43 +10:00
rcuclassic.c
stop_machine: Wean existing callers off stop_machine_run()
2008-07-28 12:16:31 +10:00
rcupdate.c
rcu: fix synchronize_rcu() so that kernel-doc works
2008-08-21 09:31:44 +02:00
rcupreempt_trace.c
rcu: remove duplicated include in kernel/rcupreempt_trace.c
2008-05-19 10:03:39 +02:00
rcupreempt.c
Merge branch 'linus' into cpus4096
2008-07-16 00:29:07 +02:00
rcutorture.c
rcu: make rcutorture even more vicious: invoke RCU readers from irq handlers (timers)
2008-06-26 09:24:33 +02:00
relay.c
relay: fix "full buffer with exactly full last subbuffer" accounting problem
2008-08-05 14:33:46 -07:00
res_counter.c
cgroup files: convert res_counter_write() to be a cgroups write_string() handler
2008-07-25 10:53:36 -07:00
resource.c
kernel/resource.c: fix new kernel-doc warning
2008-09-02 10:47:30 -07:00
rtmutex_common.h
Don't operate with pid_t in rtmutex tester
2008-02-08 09:22:41 -08:00
rtmutex-debug.c
Don't operate with pid_t in rtmutex tester
2008-02-08 09:22:41 -08:00
rtmutex-debug.h
…
rtmutex-tester.c
sysdev: Pass the attribute to the low level sysdev show/store function
2008-07-21 21:55:02 -07:00
rtmutex.c
hrtimer: more hrtimer_init_sleeper() fallout.
2008-02-13 15:45:36 +01:00
rtmutex.h
…
rwsem.c
sched: mark rwsem functions as __sched for wchan/profiling
2007-12-18 15:21:13 +01:00
sched_clock.c
sched_clock: fix cpu_clock()
2008-08-25 17:39:57 +02:00
sched_cpupri.c
sched: use a 2-d bitmap for searching lowest-pri CPU
2008-06-06 15:19:28 +02:00
sched_cpupri.h
sched: fix the cpuprio count really
2008-06-06 15:19:44 +02:00
sched_debug.c
sched: add full schedstats to /proc/sched_debug
2008-06-27 14:31:31 +02:00
sched_fair.c
sched: fix mysql+oltp regression
2008-08-11 14:49:29 +02:00
sched_features.h
sched: enable LB_BIAS by default
2008-08-21 08:18:02 +02:00
sched_idletask.c
sched: make rt_sched_class, idle_sched_class static
2008-05-05 23:56:17 +02:00
sched_rt.c
sched: rt-bandwidth accounting fix
2008-08-28 13:42:38 +02:00
sched_stats.h
sched: fix accounting in task delay accounting & migration
2008-07-04 12:50:23 +02:00
sched.c
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-08-16 17:15:32 -07:00
seccomp.c
…
semaphore.c
semaphore: __down_common: use signal_pending_state()
2008-08-05 14:33:47 -07:00
signal.c
tracehook: fix SA_NOCLDWAIT
2008-08-19 20:37:07 -07:00
smp.c
smp: have smp_call_function_single() detect invalid CPUs
2008-08-25 17:45:48 -07:00
softirq.c
Full conversion to early_initcall() interface, remove old interface
2008-07-26 12:00:04 -07:00
softlockup.c
softlockup: minor cleanup, don't check task->state twice
2008-09-02 10:49:51 -07:00
spinlock.c
lockdep: spin_lock_nest_lock(), checkpatch fixes
2008-08-13 13:56:51 +02:00
srcu.c
make srcu_readers_active() static
2008-02-06 10:41:02 -08:00
stacktrace.c
stacktrace: fix modular build, export print_stack_trace and save_stack_trace
2008-06-30 09:20:55 +02:00
stop_machine.c
stop_machine: remove unused variable
2008-08-12 17:52:55 +10:00
sys_ni.c
signalfd: fix undefined reference to `compat_sys_signalfd4' when !CONFIG_SIGNALFD
2008-07-25 11:35:41 -07:00
sys.c
fix setpriority(PRIO_PGRP) thread iterator breakage
2008-08-20 15:40:32 -07:00
sysctl_check.c
sysctl: check for bogus modes
2008-07-25 10:53:45 -07:00
sysctl.c
lost sysctl fix
2008-07-27 09:45:34 -07:00
taskstats.c
taskstats: remove initialization of static per-cpu variable
2008-07-25 10:53:47 -07:00
test_kprobes.c
kprobes: kretprobe user entry-handler
2008-02-06 10:41:11 -08:00
time.c
Make constants in kernel/timeconst.h fixed 64 bits
2008-05-02 16:18:42 -07:00
timeconst.pl
Make constants in kernel/timeconst.h fixed 64 bits
2008-05-02 16:18:42 -07:00
timer.c
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
2008-07-14 16:06:58 -07:00
tsacct.c
task IO accounting: move all IO statistics in struct task_io_accounting
2008-07-27 16:12:28 -07:00
uid16.c
asmlinkage_protect replaces prevent_tail_call
2008-04-10 17:28:26 -07:00
user_namespace.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
user.c
alloc_uid: cleanup
2008-04-30 08:29:53 -07:00
utsname_sysctl.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
utsname.c
removed unused #include <linux/version.h>'s
2008-08-23 12:14:12 -07:00
wait.c
kernel: remove fastcall in kernel/*
2008-02-08 09:22:31 -08:00
workqueue.c
Merge branch 'core/locking' into core/urgent
2008-08-12 00:11:49 +02:00