linux/kernel/trace
Steven Rostedt 91e86e560d tracing: Fix recursive user stack trace
The user stack trace can fault when examining the trace. Which
would call the do_page_fault handler, which would trace again,
which would do the user stack trace, which would fault and call
do_page_fault again ...

Thus this is causing a recursive bug. We need to have a recursion
detector here.

[ Resubmitted by Jiri Olsa ]

[ Eric Dumazet recommended using __this_cpu_* instead of __get_cpu_* ]

Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Jiri Olsa <jolsa@redhat.com>
LKML-Reference: <1289390172-9730-3-git-send-email-jolsa@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2010-11-12 21:20:08 -05:00
..
blktrace.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
ftrace.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
Kconfig Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm 2010-10-21 16:42:32 -07:00
Makefile Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 09:30:52 -07:00
power-traces.c
ring_buffer_benchmark.c ring-buffer: Make benchmark handle missed events 2010-04-27 13:26:58 -04:00
ring_buffer.c Merge branch 'perf-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-10-27 18:48:00 -07:00
trace_branch.c tracing: Allow events to share their print functions 2010-05-14 14:20:32 -04:00
trace_clock.c Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2010-08-06 09:39:22 -07:00
trace_entries.h tracing: Remove special traces 2010-07-20 14:31:07 +02:00
trace_event_perf.c perf: Rework the PMU methods 2010-09-09 20:46:30 +02:00
trace_events_filter.c tracing: Remove test of NULL define_fields callback 2010-06-28 17:12:52 -04:00
trace_events.c Merge branch 'llseek' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl 2010-10-22 10:52:56 -07:00
trace_export.c tracing: Remove redundant raw_init callbacks 2010-06-28 17:12:53 -04:00
trace_functions_graph.c tracing: Remove parent recording in latency tracer graph options 2010-10-18 10:53:38 -04:00
trace_functions.c tracing: Remove ftrace_preempt_disable/enable 2010-06-03 19:32:38 -04:00
trace_irqsoff.c tracing: Use one prologue for the preempt irqs off tracer function tracers 2010-10-18 10:53:36 -04:00
trace_kdb.c kdb,ftdump: Remove reference to internal kdb include 2010-10-22 15:34:11 -05:00
trace_kprobe.c Remove duplicate includes from many files 2010-10-27 18:03:18 -07:00
trace_mmiotrace.c
trace_nop.c
trace_output.c Merge branch 'tip/perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-2.6-trace into perf/core 2010-07-23 09:10:29 +02:00
trace_output.h tracing: Allow events to share their print functions 2010-05-14 14:20:32 -04:00
trace_printk.c
trace_sched_switch.c tracing: Let tracepoints have data passed to tracepoint callbacks 2010-05-14 09:50:34 -04:00
trace_sched_wakeup.c tracing: Fix compile issue for trace_sched_wakeup.c 2010-10-19 10:56:19 -04:00
trace_selftest_dynamic.c
trace_selftest.c tracing: Remove special traces 2010-07-20 14:31:07 +02:00
trace_stack.c llseek: automatically add .llseek fop 2010-10-15 15:53:27 +02:00
trace_stat.c
trace_stat.h
trace_syscalls.c tracing: Use a global field list for all syscall exit events 2010-06-28 17:12:44 -04:00
trace_workqueue.c jump label: Initialize workqueue tracepoints *before* they are registered 2010-09-22 16:30:03 -04:00
trace.c tracing: Fix recursive user stack trace 2010-11-12 21:20:08 -05:00
trace.h tracing: Make graph related irqs/preemptsoff functions global 2010-10-18 10:53:28 -04:00