Frederic Weisbecker f201ae2356 tracing/function-return-tracer: store return stack into task_struct and allocate it dynamically ...

Impact: use deeper function tracing depth safely

Some tests showed that function return tracing needed a more deeper depth
of function calls. But it could be unsafe to store these return addresses
to the stack.

So these arrays will now be allocated dynamically into task_struct of current
only when the tracer is activated.

Typical scheme when tracer is activated:
- allocate a return stack for each task in global list.
- fork: allocate the return stack for the newly created task
- exit: free return stack of current
- idle init: same as fork

I chose a default depth of 50. I don't have overruns anymore.

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

2008-11-23 09:17:26 +01:00

..

irq

irq: make variable static

2008-10-22 07:37:17 +02:00

power

suspend: use WARN not WARN_ON to print the message

2008-11-18 08:07:36 -08:00

time

nohz: disable tick_nohz_kick_tick() for now

2008-11-10 22:39:27 +01:00

trace

tracing/function-return-tracer: store return stack into task_struct and allocate it dynamically

2008-11-23 09:17:26 +01:00

.gitignore

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acct.c

tty: Fix abusers of current->sighand->tty

2008-10-13 09:51:42 -07:00

audit_tree.c

Fix inotify watch removal/umount races

2008-11-15 12:26:44 -08:00

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

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auditfilter.c

Fix inotify watch removal/umount races

2008-11-15 12:26:44 -08:00

auditsc.c

tty: Fix abusers of current->sighand->tty

2008-10-13 09:51:42 -07:00

backtracetest.c

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bounds.c

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capability.c

security: Fix setting of PF_SUPERPRIV by __capable()

2008-08-14 22:59:43 +10:00

cgroup_debug.c

cgroups: fix probable race with put_css_set[_taskexit] and find_css_set

2008-10-20 08:52:38 -07:00

cgroup_freezer.c

freezer_cg: disable writing freezer.state of root cgroup

2008-11-12 17:17:16 -08:00

cgroup.c

cgroups: fix a serious bug in cgroupstats

2008-11-19 18:50:00 -08:00

compat.c

Merge branches 'timers/clocksource', 'timers/hrtimers', 'timers/nohz', 'timers/ntp', 'timers/posixtimers' and 'timers/debug' into v28-timers-for-linus

2008-10-20 13:14:06 +02:00

configs.c

kernel/configs.c: remove useless comments

2008-10-20 08:52:34 -07:00

cpu.c

cpumask: introduce new API, without changing anything

2008-11-06 09:05:33 +01:00

cpuset.c

cpuset: update top cpuset's mems after adding a node

2008-11-19 18:49:58 -08:00

delayacct.c

per-task-delay-accounting: update taskstats for memory reclaim delay

2008-07-25 10:53:47 -07:00

dma-coherent.c

dma-coherent: export dma_[alloc|release]_from_coherent methods

2008-08-22 08:34:53 +02:00

dma.c

kernel/dma.c: remove a CVS keyword

2008-10-16 11:21:30 -07:00

exec_domain.c

proc: move /proc/execdomains to kernel/exec_domain.c

2008-10-23 14:30:41 +04:00

exit.c

tracing/function-return-tracer: store return stack into task_struct and allocate it dynamically

2008-11-23 09:17:26 +01:00

extable.c

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fork.c

tracing/function-return-tracer: store return stack into task_struct and allocate it dynamically

2008-11-23 09:17:26 +01:00

freezer.c

freezer_cg: use thaw_process() in unfreeze_cgroup()

2008-10-30 11:38:45 -07:00

futex_compat.c

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futex.c

hrtimer: make the futex() system call use the per process slack value

2008-09-11 07:17:00 -07:00

hrtimer.c

hrtimer: clean up unused callback modes

2008-11-12 09:54:40 +01:00

itimer.c

timers: fix itimer/many thread hang

2008-09-14 16:25:35 +02:00

kallsyms.c

sprint_symbol(): use less stack

2008-11-19 18:49:58 -08:00

Kconfig.freezer

container freezer: implement freezer cgroup subsystem

2008-10-20 08:52:34 -07:00

Kconfig.hz

sched: fix SCHED_HRTICK dependency

2008-07-28 14:37:38 +02:00

Kconfig.preempt

…

kexec.c

kexec: fix crash_save_vmcoreinfo_init build problem

2008-10-20 15:28:50 -07:00

kfifo.c

…

kgdb.c

kgdb: call touch_softlockup_watchdog on resume

2008-10-06 13:50:59 -05:00

kmod.c

Merge git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus

2008-10-16 12:38:34 -07:00

kprobes.c

kernel/kprobes.c: don't pad kretprobe_table_locks[] on uniprocessor builds

2008-11-12 17:17:17 -08:00

ksysfs.c

profiling: dynamically enable readprofile at runtime

2008-10-16 11:21:31 -07:00

kthread.c

tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()

2008-11-16 09:01:36 +01:00

latencytop.c

…

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 irqs on/off ip tracing

2008-10-28 11:19:07 +01:00

Makefile

Merge branches 'tracing/ftrace' and 'tracing/urgent' into tracing/core

2008-11-19 10:04:25 +01:00

marker.c

markers/tracpoints: fix non-modular build

2008-11-16 09:52:03 +01:00

module.c

Merge branches 'tracing/branch-tracer', 'tracing/ftrace', 'tracing/function-return-tracer', 'tracing/tracepoints' and 'tracing/urgent' into tracing/core

2008-11-17 09:36:22 +01:00

mutex-debug.c

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mutex-debug.h

…

mutex.c

locking: fix mutex @key parameter kernel-doc notation

2008-07-28 18:12:36 +02:00

mutex.h

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notifier.c

ftrace: ignore functions that cannot be kprobe-ed

2008-10-14 10:34:22 +02:00

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

Make panic= and panic_on_oops into core_params

2008-10-22 10:00:25 +11:00

params.c

Fix compile warning in kernel/params.c

2008-10-23 12:09:00 -07:00

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

sched, signals: fix the racy usage of ->signal in account_group_xxx/run_posix_cpu_timers

2008-11-17 16:49:35 +01:00

posix-timers.c

Merge branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2

2008-10-22 09:48:06 +02:00

printk.c

printk: remove unused code from kernel/printk.c

2008-10-23 21:54:29 +02:00

profile.c

profiling: clean up profile_nop()

2008-11-19 10:19:16 +01:00

ptrace.c

make ptrace_untrace() static

2008-10-20 08:52:39 -07:00

rcuclassic.c

rcu: RCU-based detection of stalled CPUs for Classic RCU, fix

2008-10-03 10:41:00 +02:00

rcupdate.c

rcupdate: fix bug of rcu_barrier*()

2008-10-21 15:59:53 +02:00

rcupreempt_trace.c

rcu: trace fix possible mem-leak

2008-08-15 17:54:40 +02:00

rcupreempt.c

byteorder: remove direct includes of linux/byteorder/swab[b].h

2008-10-20 08:52:40 -07:00

rcutorture.c

byteorder: remove direct includes of linux/byteorder/swab[b].h

2008-10-20 12:51:53 -07:00

relay.c

relay: fix cpu offline problem

2008-11-18 15:08:56 +01:00

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

reserve_region_with_split: Fix GFP_KERNEL usage under spinlock

2008-11-01 09:53:58 -07:00

rtmutex_common.h

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rtmutex-debug.c

…

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: convert kernel/* to the new hrtimer apis

2008-09-05 21:35:13 -07:00

rtmutex.h

…

rwsem.c

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sched_clock.c

sched_clock: prevent scd->clock from moving backwards

2008-10-10 11:17:04 +02:00

sched_cpupri.c

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sched_cpupri.h

…

sched_debug.c

sched: fix kernel warning on /proc/sched_debug access

2008-11-16 08:07:15 +01:00

sched_fair.c

sched: release buddies on yield

2008-11-11 11:57:22 +01:00

sched_features.h

sched: backward looking buddy

2008-11-05 10:30:14 +01:00

sched_idletask.c

sched: add CONFIG_SMP consistency

2008-10-22 10:01:52 +02:00

sched_rt.c

Merge commit 'v2.6.28-rc1' into sched/urgent

2008-10-24 12:48:46 +02:00

sched_stats.h

sched, signals: fix the racy usage of ->signal in account_group_xxx/run_posix_cpu_timers

2008-11-17 16:49:35 +01:00

sched.c

tracing/function-return-tracer: store return stack into task_struct and allocate it dynamically

2008-11-23 09:17:26 +01:00

seccomp.c

…

semaphore.c

semaphore: __down_common: use signal_pending_state()

2008-08-05 14:33:47 -07:00

signal.c

tracepoints: add DECLARE_TRACE() and DEFINE_TRACE()

2008-11-16 09:01:36 +01:00

smp.c

generic-ipi: fix the smp_mb() placement

2008-11-06 08:41:56 +01:00

softirq.c

irq: call __irq_enter() before calling the tick_idle_check

2008-11-10 22:36:39 +01:00

softlockup.c

Make the taint flags reliable

2008-10-16 11:21:31 -07:00

spinlock.c

lockdep: spin_lock_nest_lock(), checkpatch fixes

2008-08-13 13:56:51 +02:00

srcu.c

…

stacktrace.c

…

stop_machine.c

stop_machine: fix race with return value (fixes Bug #11989)

2008-11-16 15:09:52 -08:00

sys_ni.c

reintroduce accept4

2008-11-19 18:49:57 -08:00

sys.c

Merge branch 'timers/range-hrtimers' into v28-range-hrtimers-for-linus-v2

2008-10-22 09:48:06 +02:00

sysctl_check.c

sysctl: check for bogus modes

2008-07-25 10:53:45 -07:00

sysctl.c

ftrace: sysctl typo

2008-11-04 13:04:40 +01:00

taskstats.c

taskstats: remove initialization of static per-cpu variable

2008-07-25 10:53:47 -07:00

test_kprobes.c

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time.c

select: add a timespec_add_safe() function

2008-09-05 21:34:57 -07:00

timeconst.pl

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timer.c

Add round_jiffies_up and related routines

2008-11-06 08:42:48 +01:00

tracepoint.c

markers/tracpoints: fix non-modular build

2008-11-16 09:52:03 +01:00

tsacct.c

task IO accounting: move all IO statistics in struct task_io_accounting

2008-07-27 16:12:28 -07:00

uid16.c

…

user_namespace.c

removed unused #include <linux/version.h>'s

2008-08-23 12:14:12 -07:00

user.c

sched: rt-bandwidth for user grouping interface

2008-08-19 13:10:09 +02:00

utsname_sysctl.c

sysctl: simplify ->strategy

2008-10-16 11:21:47 -07:00

utsname.c

removed unused #include <linux/version.h>'s

2008-08-23 12:14:12 -07:00

wait.c

wait: kill is_sync_wait()

2008-10-16 11:21:31 -07:00

workqueue.c

cpumask: introduce new API, without changing anything

2008-11-06 09:05:33 +01:00