Sven Schnelle
2f8ee5379b
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>
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2022-03-16 12:49:01 +01:00 |
| .. |
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blktrace.c
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blktrace: Fix uaf in blk_trace access after removing by sysfs
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2021-10-06 10:23:40 +02:00 |
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bpf_trace.c
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bpf: fix check of allowed specifiers in bpf_trace_printk
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2018-12-17 09:38:33 +01:00 |
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ftrace.c
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tracing: Have all levels of checks prevent recursion
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2021-10-27 09:34:01 +02:00 |
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Kconfig
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Stop the ad-hoc games with -Wno-maybe-initialized
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2020-05-20 08:15:37 +02:00 |
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Makefile
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Disable the __builtin_return_address() warning globally after all
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2016-10-12 10:23:41 -07:00 |
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power-traces.c
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ring_buffer.c
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tracing: Fix bug in rb_per_cpu_empty() that might cause deadloop.
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2021-07-28 09:14:28 +02:00 |
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ring_buffer_benchmark.c
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rpm-traces.c
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trace.c
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tracing: Ensure trace buffer is at least 4096 bytes large
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2022-03-16 12:49:01 +01:00 |
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trace.h
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tracing: Fix pid filtering when triggers are attached
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2021-12-08 08:45:03 +01:00 |
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trace_benchmark.c
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trace_benchmark.h
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trace_branch.c
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trace_clock.c
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tracing: Do no increment trace_clock_global() by one
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2021-06-30 08:49:17 -04:00 |
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trace_entries.h
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tracing: Set kernel_stack's caller size properly
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2020-10-01 20:40:05 +02:00 |
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trace_event_perf.c
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
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2016-05-17 16:26:30 -07:00 |
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trace_events.c
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tracing: Check pid filtering when creating events
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2021-12-08 08:45:03 +01:00 |
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trace_events_filter.c
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tracing: Fix regex_match_front() to not over compare the test string
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2018-05-16 10:08:43 +02:00 |
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trace_events_filter_test.h
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trace_events_hist.c
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tracing: Do not reference char * as a string in histograms
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2021-07-20 16:21:11 +02:00 |
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trace_events_trigger.c
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tracing: Fix event trigger to accept redundant spaces
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2020-06-30 15:38:45 -04:00 |
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trace_export.c
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trace_functions.c
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tracing: Have all levels of checks prevent recursion
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2021-10-27 09:34:01 +02:00 |
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trace_functions_graph.c
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tracing: Fix missing return symbol in function_graph output
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2018-07-11 16:26:43 +02:00 |
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trace_hwlat.c
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tracing/hwlat: Honor the tracing_cpumask
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2020-08-26 10:29:03 +02:00 |
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trace_irqsoff.c
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trace_kdb.c
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tracing: Silence GCC 9 array bounds warning
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2019-07-10 09:55:28 +02:00 |
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trace_kprobe.c
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tracing: Quiet gcc warning about maybe unused link variable
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2018-08-03 07:55:12 +02:00 |
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trace_mmiotrace.c
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tracing: Expose CPU physical addresses (resource values) for PCI devices
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2016-06-20 09:54:22 -04:00 |
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trace_nop.c
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trace_output.c
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tracing: Add NMI tracing in hwlat detector
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2016-09-02 12:47:55 -04:00 |
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trace_output.h
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trace_printk.c
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tracing: Handle NULL formats in hold_module_trace_bprintk_format()
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2016-06-20 09:46:12 -04:00 |
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trace_probe.c
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tracing: probeevent: Fix to support minus offset from symbol
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2018-03-28 18:39:23 +02:00 |
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trace_probe.h
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tracing: probeevent: Fix to support minus offset from symbol
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2018-03-28 18:39:23 +02:00 |
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trace_sched_switch.c
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trace_sched_wakeup.c
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kernel/trace: Fix do not unregister tracepoints when register sched_migrate_task fail
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2020-01-14 20:04:26 +01:00 |
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trace_selftest.c
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ftrace: Handle tracing when switching between context
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2020-11-10 10:24:02 +01:00 |
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trace_selftest_dynamic.c
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trace_seq.c
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trace_stack.c
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tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined
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2020-01-14 20:04:26 +01:00 |
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trace_stat.c
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tracing: Fix very unlikely race of registering two stat tracers
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2020-02-28 15:42:21 +01:00 |
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trace_stat.h
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trace_syscalls.c
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tracing/syscalls: fix multiline in error message text
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2016-09-29 10:25:23 +02:00 |
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trace_uprobe.c
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tracing/uprobes: Fix output for multiple string arguments
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2019-02-20 10:18:32 +01:00 |
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tracing_map.c
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tracing: Fix a kmemleak false positive in tracing_map
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2021-12-22 09:05:13 +01:00 |
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tracing_map.h
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tracing: Update some tracing_map constants and comments
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2016-04-19 12:16:06 -04:00 |