Steven Rostedt (Google) 76ea999368 ring-buffer: Do not record in NMI if the arch does not support cmpxchg in NMI ...

[ Upstream commit 712292308af2265cd9b126aedfa987f10f452a33 ]

As the ring buffer recording requires cmpxchg() to work, if the
architecture does not support cmpxchg in NMI, then do not do any recording
within an NMI.

Link: https://lore.kernel.org/linux-trace-kernel/20231213175403.6fc18540@gandalf.local.home

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
(cherry picked from commit 70887567dd96c2f5b46d853b603de30ea22741a2)
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>

2024-02-02 11:33:36 +00:00

..

blktrace.c

blktrace: Fix output non-blktrace event when blk_classic option enabled

2023-01-18 09:26:18 +01:00

bpf_trace.c

bpf: fix check of allowed specifiers in bpf_trace_printk

2018-12-17 09:28:50 +01:00

ftrace.c

ftrace: Fix invalid address access in lookup_rec() when index is 0

2023-03-22 13:26:16 +01:00

Kconfig

Stop the ad-hoc games with -Wno-maybe-initialized

2020-05-20 08:17:10 +02:00

Makefile

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

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

ring_buffer_benchmark.c

ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU

2017-08-02 14:23:02 -04:00

ring_buffer.c

ring-buffer: Do not record in NMI if the arch does not support cmpxchg in NMI

2024-02-02 11:33:36 +00:00

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

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_benchmark.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_branch.c

Revert "x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP"

2019-07-03 13:15:57 +02:00

trace_clock.c

tracing: Do no increment trace_clock_global() by one

2021-06-30 08:48:53 -04:00

trace_entries.h

tracing: Set kernel_stack's caller size properly

2020-10-01 13:12:32 +02:00

trace_event_perf.c

perf/ftrace: Fix double traces of perf on ftrace:function

2017-08-29 13:29:29 +02:00

trace_events_filter_test.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_events_filter.c

tracing: Fix regex_match_front() to not over compare the test string

2018-05-16 10:10:27 +02:00

trace_events_hist.c

tracing: Do not reference char * as a string in histograms

2021-07-20 16:17:48 +02:00

trace_events_trigger.c

tracing: Dump stacktrace trigger to the corresponding instance

2022-04-27 13:15:29 +02:00

trace_events.c

tracing: relax trace_event_eval_update() execution with cond_resched()

2023-10-25 11:13:32 +02:00

trace_export.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_functions_graph.c

tracing/fgraph: Fix set_graph_function from showing interrupts

2019-05-16 19:42:27 +02:00

trace_functions.c

tracing: Have all levels of checks prevent recursion

2021-10-27 09:51:41 +02:00

trace_hwlat.c

tracing/hwlat: Honor the tracing_cpumask

2020-08-21 09:48:19 +02:00

trace_irqsoff.c

tracing: Fix memleak due to race between current_tracer and trace

2023-08-30 16:35:14 +02:00

trace_kdb.c

tracing: Silence GCC 9 array bounds warning

2019-06-25 11:36:50 +08:00

trace_kprobe.c

ftrace/kprobe: Show the maxactive number on kprobe_events

2020-04-24 08:00:50 +02:00

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: Add size check when printing trace_marker output

2024-02-02 11:33:36 +00:00

trace_output.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_printk.c

…

trace_probe.c

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:24:42 +02:00

trace_probe.h

tracing: probeevent: Fix to support minus offset from symbol

2018-03-28 18:24:42 +02:00

trace_sched_switch.c

tracing: Fix sched switch start/stop refcount racy updates

2020-02-14 16:32:07 -05:00

trace_sched_wakeup.c

tracing: Fix memleak due to race between current_tracer and trace

2023-08-30 16:35:14 +02:00

trace_selftest_dynamic.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_selftest.c

ftrace: Handle tracing when switching between context

2020-11-10 10:29:04 +01:00

trace_seq.c

…

trace_stack.c

tracing: Have stack tracer compile when MCOUNT_INSN_SIZE is not defined

2020-01-14 20:05:40 +01:00

trace_stat.c

tracing: Fix very unlikely race of registering two stat tracers

2020-02-28 16:35:58 +01:00

trace_stat.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_syscalls.c

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

trace_uprobe.c

tracing/uprobes: Fix output for multiple string arguments

2019-02-20 10:20:53 +01:00

trace.c

tracing: Have large events show up as '[LINE TOO BIG]' instead of nothing

2024-02-02 11:33:36 +00:00

trace.h

tracing: Make sure trace_printk() can output as soon as it can be used

2023-02-06 07:46:31 +01:00

tracing_map.c

tracing: Fix a kmemleak false positive in tracing_map

2021-12-22 09:17:58 +01:00

tracing_map.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00