Sven Schnelle e362311c8c tracing: Ensure trace buffer is at least 4096 bytes large ... [ Upstream commit 7acf3a127bb7c65ff39099afd78960e77b2ca5de ] Booting the kernel with 'trace_buf_size=1' give a warning at boot during the ftrace selftests: [ 0.892809] Running postponed tracer tests: [ 0.892893] Testing tracer function: [ 0.901899] Callback from call_rcu_tasks_trace() invoked. [ 0.983829] Callback from call_rcu_tasks_rude() invoked. [ 1.072003] .. bad ring buffer .. corrupted trace buffer .. [ 1.091944] Callback from call_rcu_tasks() invoked. [ 1.097695] PASSED [ 1.097701] Testing dynamic ftrace: .. filter failed count=0 ..FAILED! [ 1.353474] ------------[ cut here ]------------ [ 1.353478] WARNING: CPU: 0 PID: 1 at kernel/trace/trace.c:1951 run_tracer_selftest+0x13c/0x1b0 Therefore enforce a minimum of 4096 bytes to make the selftest pass. Link: https://lkml.kernel.org/r/20220214134456.1751749-1-svens@linux.ibm.com Signed-off-by: Sven Schnelle <svens@linux.ibm.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2022-03-16 13:20:27 +01:00
..
blktrace.c	blktrace: Fix uaf in blk_trace access after removing by sysfs	2021-10-06 15:31:15 +02:00
bpf_trace.c	tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing	2021-07-20 16:15:42 +02:00
ftrace.c	tracing: Have all levels of checks prevent recursion	2021-10-27 09:53:15 +02:00
Kconfig	tracing/kprobes: Do the notrace functions check without kprobes on ftrace	2021-01-19 18:22:35 +01:00
Makefile
power-traces.c
preemptirq_delay_test.c
ring_buffer_benchmark.c
ring_buffer.c	tracing: Fix bug in rb_per_cpu_empty() that might cause deadloop.	2021-07-28 11:13:50 +02:00
rpm-traces.c
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c	tracing: Do no increment trace_clock_global() by one	2021-06-30 08:48:23 -04:00
trace_entries.h	tracing: Set kernel_stack's caller size properly	2020-10-01 13:14:31 +02:00
trace_event_perf.c
trace_events_filter_test.h
trace_events_filter.c	tracing: Have error path in predicate_parse() free its allocated memory	2020-08-05 10:05:59 +02:00
trace_events_hist.c	tracing/histogram: Fix sorting on old "cpu" value	2022-03-08 19:04:10 +01:00
trace_events_trigger.c	tracing: Have traceon and traceoff trigger honor the instance	2022-03-02 11:38:15 +01:00
trace_events.c	tracing: Check pid filtering when creating events	2021-12-01 09:27:43 +01:00
trace_export.c
trace_functions_graph.c
trace_functions.c	tracing: Have all levels of checks prevent recursion	2021-10-27 09:53:15 +02:00
trace_hwlat.c	tracing: Remove WARN_ON in start_thread()	2020-12-08 10:18:55 +01:00
trace_irqsoff.c
trace_kdb.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_kprobe.c	tracing/kprobe: Fix kprobe_on_func_entry() modification	2021-09-26 13:39:47 +02:00
trace_mmiotrace.c
trace_nop.c
trace_output.c
trace_output.h
trace_preemptirq.c	lockdep: fix order in trace_hardirqs_off_caller()	2020-10-01 13:14:50 +02:00
trace_printk.c
trace_probe.c
trace_probe.h
trace_sched_switch.c
trace_sched_wakeup.c
trace_selftest_dynamic.c
trace_selftest.c	ftrace: Handle tracing when switching between context	2020-11-10 12:35:58 +01:00
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_syscalls.c
trace_uprobe.c
trace.c	tracing: Ensure trace buffer is at least 4096 bytes large	2022-03-16 13:20:27 +01:00
trace.h	tracing: Fix pid filtering when triggers are attached	2021-12-01 09:27:39 +01:00
tracing_map.c	tracing: Fix a kmemleak false positive in tracing_map	2021-12-22 09:19:00 +01:00
tracing_map.h