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Jiri Olsa cfa77bc4af perf: Disallow user-space callchains for function trace events 
Recent issues with user space callchains processing within
page fault handler tracing showed as Peter said 'there's
just too much fail surface'.

Related list discussions:

  http://marc.info/?t=139302086500001&r=1&w=2
  http://marc.info/?t=139301437300003&r=1&w=2

Suggested-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1393775800-13524-2-git-send-email-jolsa@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2014-03-11 11:57:57 +01:00
..
cpu
sched/preempt: Fix up missed PREEMPT_NEED_RESCHED folding
2014-01-13 17:38:55 +01:00
debug
kgdb/kdb: Fix no KDB config problem
2014-01-25 08:55:09 +01:00
events
perf: Optimize group_sched_in()
2014-02-27 12:43:26 +01:00
gcov
gcov: reuse kbasename helper
2013-11-13 12:09:34 +09:00
irq
genirq: Include missing header file in irqdomain.c
2014-02-27 13:29:35 +01:00
locking
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-01-20 10:42:08 -08:00
power
arm, pm, vmpressure: add missing slab.h includes
2014-02-03 13:24:01 -05:00
printk
printk: fix syslog() overflowing user buffer
2014-02-17 12:24:45 -08:00
rcu
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-01-28 08:38:04 -08:00
sched
sched/deadline: Prevent rt_time growth to infinity
2014-02-27 12:29:41 +01:00
time
sched_clock: Prevent callers from seeing half-updated data
2014-02-19 17:07:22 +01:00
trace
perf: Disallow user-space callchains for function trace events
2014-03-11 11:57:57 +01:00
.gitignore
Ignore generated file kernel/x509_certificate_list
2013-12-10 18:21:34 +00:00
acct.c
fs: Fix hang with BSD accounting on frozen filesystem
2013-05-04 14:57:58 -04:00
async.c
async: rename and redefine async_func_ptr
2013-03-12 13:59:14 -07:00
audit_tree.c
inotify: Fix reporting of cookies for inotify events
2014-02-18 11:17:17 +01:00
audit_watch.c
inotify: Fix reporting of cookies for inotify events
2014-02-18 11:17:17 +01:00
audit.c
audit: fix location of __net_initdata for audit_net_ops
2014-01-17 17:14:32 -05:00
audit.h
audit: Convert int limit uses to u32
2014-01-14 14:54:00 -05:00
auditfilter.c
audit: log on errors from filter user rules
2014-01-13 22:32:31 -05:00
auditsc.c
execve: use 'struct filename *' for executable name passing
2014-02-05 12:54:53 -08:00
backtracetest.c
…
bounds.c
mm: do not allocate page->ptl dynamically, if spinlock_t fits to long
2013-12-20 12:25:45 -08:00
capability.c
audit: Simplify and correct audit_log_capset
2014-01-13 22:26:48 -05:00
cgroup_freezer.c
cgroup: replace cftype->read_seq_string() with cftype->seq_show()
2013-12-05 12:28:04 -05:00
cgroup.c
cgroup: update cgroup_enable_task_cg_lists() to grab siglock
2014-02-18 18:23:18 -05:00
compat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-05-01 07:21:43 -07:00
configs.c
proc: Supply PDE attribute setting accessor functions
2013-05-01 17:29:18 -04:00
context_tracking.c
context_tracking: Wrap static key check into more intuitive function name
2013-12-02 20:43:14 +01:00
cpu_pm.c
…
cpu.c
Merge branch 'sched-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2013-11-14 16:55:11 +09:00
cpuset.c
cpuset: fix a race condition in __cpuset_node_allowed_softwall()
2014-02-27 09:39:54 -05:00
crash_dump.c
…
cred.c
…
delayacct.c
kernel/delayacct.c: remove redundant checking in __delayacct_add_tsk()
2013-11-13 12:09:12 +09:00
dma.c
…
elfcore.c
switch elf_core_write_extra_phdrs() to dump_emit()
2013-11-09 00:16:23 -05:00
exec_domain.c
…
exit.c
introduce for_each_thread() to replace the buggy while_each_thread()
2014-01-21 16:19:46 -08:00
extable.c
kernel/extable: fix address-checks for core_kernel and init areas
2013-11-28 09:49:41 -08:00
fork.c
exec: kill task_struct->did_exec
2014-01-23 16:37:02 -08:00
freezer.c
libata, freezer: avoid block device removal while system is frozen
2013-12-19 13:50:32 -05:00
futex_compat.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal
2013-02-23 18:50:11 -08:00
futex.c
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-01-20 10:42:08 -08:00
groups.c
userns: Kill nsown_capable it makes the wrong thing easy
2013-08-30 23:44:11 -07:00
hrtimer.c
sched/deadline: Add SCHED_DEADLINE structures & implementation
2014-01-13 13:41:06 +01:00
hung_task.c
hung_task: Display every hung task warning
2014-01-25 12:13:33 +01:00
irq_work.c
perf/x86: Warn to early_printk() in case irq_work is too slow
2014-02-21 21:49:07 +01:00
itimer.c
…
jump_label.c
static_key: WARN on usage before jump_label_init was called
2013-10-19 19:45:35 -04:00
kallsyms.c
kernel: kallsyms: memory override issue, need check destination buffer length
2013-04-15 15:17:26 +09:30
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
kernel: remove CONFIG_USE_GENERIC_SMP_HELPERS
2013-11-15 09:32:22 +09:00
Kconfig.locks
locking: Fix copy/paste errors of "ARCH_INLINE_*_UNLOCK_BH"
2013-05-28 08:50:00 +02:00
Kconfig.preempt
…
kexec.c
kernel/kexec.c: use vscnprintf() instead of vsnprintf() in vmcoreinfo_append_str()
2014-01-27 21:02:40 -08:00
kmod.c
execve: use 'struct filename *' for executable name passing
2014-02-05 12:54:53 -08:00
kprobes.c
kprobes: use KSYM_NAME_LEN to size identifier buffers
2013-11-13 12:09:26 +09:00
ksysfs.c
kdump: fix exported size of vmcoreinfo note
2014-01-23 16:37:03 -08:00
kthread.c
kthread: make kthread_create() killable
2013-11-13 12:08:59 +09:00
latencytop.c
…
Makefile
KEYS: Remove files generated when SYSTEM_TRUSTED_KEYRING=y
2013-12-13 15:59:11 +00:00
module_signing.c
keys: change asymmetric keys to use common hash definitions
2013-10-25 17:15:18 -04:00
module-internal.h
KEYS: Separate the kernel signature checking keyring from module signing
2013-09-25 17:17:01 +01:00
module.c
module: Add missing newline in printk call.
2014-01-21 09:59:16 +10:30
notifier.c
…
nsproxy.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
2013-09-07 14:35:32 -07:00
padata.c
padata: Fix wrong usage of rcu_dereference()
2013-12-05 21:28:42 +08:00
panic.c
panic: Make panic_timeout configurable
2013-11-26 12:12:26 +01:00
params.c
params: improve standard definitions
2013-12-04 14:09:46 +10:30
pid_namespace.c
pid_namespace: make freeing struct pid_namespace rcu-delayed
2013-10-24 23:43:29 -04:00
pid.c
pidns: fix free_pid() to handle the first fork failure
2013-09-30 14:31:03 -07:00
posix-cpu-timers.c
posix-timers: Convert abuses of BUG_ON to WARN_ON
2013-12-09 16:56:29 +01:00
posix-timers.c
posix-timers: Remove unused variable
2013-04-18 12:51:19 +02:00
profile.c
mm: fix GFP_THISNODE callers and clarify
2014-03-10 17:26:19 -07:00
ptrace.c
exec/ptrace: fix get_dumpable() incorrect tests
2013-11-13 12:09:33 +09:00
range.c
range: Do not add new blank slot with add_range_with_merge
2013-06-18 11:32:10 -05:00
reboot.c
kexec: migrate to reboot cpu
2013-12-18 19:04:50 -08:00
relay.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
res_counter.c
memcg: reduce function dereference
2013-09-12 15:38:02 -07:00
resource.c
kernel/resource.c: remove the unneeded assignment in function __find_resource
2013-07-03 16:08:06 -07:00
seccomp.c
seccomp: allow BPF_XOR based ALU instructions.
2013-03-26 11:07:19 +11:00
signal.c
kernel/signal.c: change do_signal_stop/do_sigaction to use while_each_thread()
2014-01-23 16:37:02 -08:00
smp.c
kernel/smp.c: remove cpumask_ipi
2014-01-30 16:56:54 -08:00
smpboot.c
kernel: delete __cpuinit usage from all core kernel files
2013-07-14 19:36:59 -04:00
smpboot.h
…
softirq.c
Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-01-31 09:02:51 -08:00
stacktrace.c
…
stop_machine.c
stop_machine: Fix race between stop_two_cpus() and stop_cpus()
2013-11-11 12:43:38 +01:00
sys_ni.c
unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE
2013-05-09 13:46:38 -04:00
sys.c
kernel/sys.c: k_getrusage() can use while_each_thread()
2014-01-23 16:37:02 -08:00
sysctl_binary.c
kernel/sysctl_binary.c: use scnprintf() instead of snprintf()
2013-11-13 12:09:33 +09:00
sysctl.c
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2014-01-31 08:59:46 -08:00
system_certificates.S
KEYS: correct alignment of system_certificate_list content in assembly file
2013-12-10 18:25:28 +00:00
system_keyring.c
KEYS: correct alignment of system_certificate_list content in assembly file
2013-12-10 18:25:28 +00:00
task_work.c
task_work: documentation
2013-09-11 15:58:27 -07:00
taskstats.c
genetlink: only pass array to genl_register_family_with_ops()
2013-11-19 16:39:05 -05:00
test_kprobes.c
kernel/: rename random32() to prandom_u32()
2013-04-29 18:28:42 -07:00
time.c
sched: Rename sched.c as sched/core.c in comments and Documentation
2013-06-19 12:58:42 +02:00
timeconst.bc
kernel: Replace timeconst.pl with a bc script
2013-02-16 23:17:25 +01:00
timer.c
timer: Convert kmalloc_node(...GFP_ZERO...) to kzalloc_node(...)
2013-11-19 14:59:50 +01:00
tracepoint.c
tracing: Do not add event files for modules that fail tracepoints
2014-03-03 21:11:05 -05:00
tsacct.c
cputime: Use accessors to read task cputime stats
2013-01-27 19:23:31 +01:00
uid16.c
userns: Kill nsown_capable it makes the wrong thing easy
2013-08-30 23:44:11 -07:00
up.c
kernel: provide a __smp_call_function_single stub for !CONFIG_SMP
2013-11-15 09:32:22 +09:00
user_namespace.c
user_namespace.c: Remove duplicated word in comment
2014-02-20 11:58:35 -08:00
user-return-notifier.c
hlist: drop the node parameter from iterators
2013-02-27 19:10:24 -08:00
user.c
KEYS: fix uninitialized persistent_keyring_register_sem
2013-12-13 15:59:11 +00:00
utsname_sysctl.c
kernel/utsname_sysctl.c: put get/get_uts() into CONFIG_PROC_SYSCTL code block
2013-02-27 19:10:22 -08:00
utsname.c
userns: Kill nsown_capable it makes the wrong thing easy
2013-08-30 23:44:11 -07:00
watchdog.c
watchdog: update watchdog_thresh properly
2013-09-24 17:00:25 -07:00
workqueue_internal.h
sched: Rename sched.c as sched/core.c in comments and Documentation
2013-06-19 12:58:42 +02:00
workqueue.c
workqueue: ensure @task is valid across kthread_stop()
2014-02-18 16:35:20 -05:00