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b6399cc789341fc49a0603fb7d388a4e50aca212
linux/kernel/trace
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Steven Rostedt (VMware) b6399cc789 tracing/kprobe: Do not run kprobe boot tests if kprobe_event is on cmdline 
When having kprobe trace event start up tests enabled and adding a
kprobe_event on the kernel command line, it produced the following:

 trace_kprobe: Testing kprobe tracing:
 WARNING: CPU: 5 PID: 1 at kernel/trace/trace_kprobe.c:1724 kprobe_trace_self_tests_init+0x32d/0x36b
 Modules linked in:
 CPU: 5 PID: 1 Comm: swapper/0 Not tainted 5.2.0-rc1-test+ #249
 Hardware name: Hewlett-Packard HP Compaq Pro 6300 SFF/339A, BIOS K01 v03.03 07/14/2016
 RIP: 0010:kprobe_trace_self_tests_init+0x32d/0x36b
 Code: b7 e8 4f 8d a2 fe 85 c0 74 10 0f 0b 48 c7 c7 c8 1b 0d b7 ff c3 e8 19 af 99 fe 48 c7 c7 40 93 27 b7 e8 7f 1a a5 fe 85 c0 74 10 <0f> 0b 48 c7 c7 f8 1b 0d b7 ff c3 e8 f9 ae
9 a0 fe 85
 RSP: 0018:ffffb36e40653e08 EFLAGS: 00010286
 RAX: 00000000fffffff0 RBX: 0000000000000000 RCX: ffffb36e40653d5c
 RDX: 0000000000000000 RSI: ffffffffb72776e0 RDI: 0000000000000246
 RBP: ffff98414fe58ff8 R08: 0000000000000000 R09: 0000000000000000
 R10: 0000000000000000 R11: ffff98415d8aa940 R12: 0000000000000000
 R13: ffffffffb737c1b0 R14: 0000000000000000 R15: 0000000000000000
 FS:  0000000000000000(0000) GS:ffff98415ea80000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: 00007f959ce741b8 CR3: 000000011a210002 CR4: 00000000001606e0
 Call Trace:
  ? init_kprobe_trace+0x19e/0x19e
  ? do_early_param+0x8e/0x8e
  do_one_initcall+0x6f/0x2b4
  ? do_early_param+0x8e/0x8e
  kernel_init_freeable+0x21d/0x2c6
  ? rest_init+0x146/0x146
  kernel_init+0xa/0x10a
  ret_from_fork+0x3a/0x50
 ---[ end trace 488430c083a4c956 ]---

As with the trace events, if a trace event is set on the kernel command
line, the trace events start up tests are suspended. The kprobe start up
tests should do the same when a kprobe is enabled on the kernel command
line.

Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-05-25 23:04:43 -04:00
..
blktrace.c
blkcg: annotate implicit fall through
2019-03-13 14:31:12 -06:00
bpf_trace.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2019-05-07 22:03:58 -07:00
fgraph.c
tracing: Fix ftrace_graph_get_ret_stack() to use task and not current
2018-12-22 08:21:03 -05:00
ftrace_internal.h
ftrace: Create new ftrace_internal.h header
2018-12-08 20:54:06 -05:00
ftrace.c
ftrace: Make enable and update parameters bool when applicable
2019-05-25 23:04:42 -04:00
Kconfig
tracing: Make a separate config for trace event self tests
2019-05-25 23:04:43 -04:00
Makefile
tracing: Add unified dynamic event framework
2018-12-08 20:54:09 -05:00
power-traces.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
preemptirq_delay_test.c
tracing: Use trace_clock_local() for looping in preemptirq_delay_test.c
2018-10-17 15:35:33 -04:00
ring_buffer_benchmark.c
ring-buffer: Fix mispelling of Calculate
2019-05-08 12:15:12 -04:00
ring_buffer.c
Merge tag 'trace-v5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-05-15 16:05:47 -07:00
rpm-traces.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
trace_benchmark.c
rcu: Rename cond_resched_rcu_qs() to cond_resched_tasks_rcu_qs()
2018-05-15 10:27:29 -07:00
trace_benchmark.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_branch.c
x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP
2019-04-03 11:02:24 +02:00
trace_clock.c
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
trace_dynevent.c
tracing: initialize variable in create_dyn_event()
2019-03-26 08:35:36 -04:00
trace_dynevent.h
tracing: Add unified dynamic event framework
2018-12-08 20:54:09 -05:00
trace_entries.h
tracing: Change the function format to display function names by perf
2019-02-11 14:53:43 -05:00
trace_event_perf.c
tracing/perf: Use strndup_user() instead of buggy open-coded version
2019-02-21 10:35:10 -05:00
trace_events_filter_test.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_events_filter.c
tracing: Fix white space issues in parse_pred() function
2019-05-08 12:15:12 -04:00
trace_events_hist.c
tracing: Add a check_val() check before updating cond_snapshot() track_val
2019-05-21 12:48:07 -04:00
trace_events_trigger.c
tracing: Add trace_array parameter to create_event_filter()
2019-04-08 09:22:28 -04:00
trace_events.c
tracing: Make a separate config for trace event self tests
2019-05-25 23:04:43 -04:00
trace_export.c
tracing: Add trigger file for trace_markers tracefs/ftrace/print
2018-05-29 08:28:53 -04:00
trace_functions_graph.c
tracing: Put a margin between flags and duration for wakeup tracers
2019-02-06 11:56:19 -05:00
trace_functions.c
tracing: Update stack trace skipping for ORC unwinder
2018-01-23 15:57:00 -05:00
trace_hwlat.c
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
trace_irqsoff.c
Merge tag 'trace-v5.1' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
2019-03-11 17:01:32 -07:00
trace_kdb.c
tracing: Silence GCC 9 array bounds warning
2019-05-25 23:04:30 -04:00
trace_kprobe_selftest.c
selftest/ftrace: Move kprobe selftest function to separate compile unit
2018-07-30 18:41:04 -04:00
trace_kprobe_selftest.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_kprobe.c
tracing/kprobe: Do not run kprobe boot tests if kprobe_event is on cmdline
2019-05-25 23:04:43 -04:00
trace_mmiotrace.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
trace_nop.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
trace_output.c
tracing: Simplify printf'ing in seq_print_sym
2018-12-22 08:21:06 -05:00
trace_output.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_preemptirq.c
kprobes: Prohibit probing on hardirq tracers
2019-02-13 08:16:40 +01:00
trace_printk.c
tracing: Trivia spelling fix containerof() -> container_of()
2018-09-26 12:21:00 +03:00
trace_probe_tmpl.h
tracing/probe: Support user-space dereference
2019-05-25 23:04:42 -04:00
trace_probe.c
tracing/probe: Support user-space dereference
2019-05-25 23:04:42 -04:00
trace_probe.h
tracing/probe: Support user-space dereference
2019-05-25 23:04:42 -04:00
trace_sched_switch.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
trace_sched_wakeup.c
tracing: Add conditional snapshot
2019-02-20 13:51:06 -05:00
trace_selftest_dynamic.c
ftrace: Mark function tracer test functions noinline/noclone
2018-01-23 15:57:29 -05:00
trace_selftest.c
function_graph: Have selftest also emulate tr->reset() as it did with tr->init()
2019-04-21 19:46:56 -04:00
trace_seq.c
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
trace_stack.c
tracing: Remove the last struct stack_trace usage
2019-04-29 12:37:56 +02:00
trace_stat.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
trace_stat.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00
trace_syscalls.c
syscalls: Remove start and number from syscall_get_arguments() args
2019-04-05 09:26:43 -04:00
trace_uprobe.c
tracing/probe: Support user-space dereference
2019-05-25 23:04:42 -04:00
trace.c
tracing: Use correct function name in trace_filter_add_remove_task() comment
2019-05-25 23:04:43 -04:00
trace.h
tracing: Silence GCC 9 array bounds warning
2019-05-25 23:04:30 -04:00
tracing_map.c
tracing: Add SPDX License format tags to tracing files
2018-08-16 19:08:06 -04:00
tracing_map.h
tracing: Fix SPDX format headers to use C++ style comments
2018-08-16 19:08:06 -04:00