Steven Rostedt (Google) 3432f9686a ring-buffer: Have rb_time_cmpxchg() set the msb counter too ...

commit 0aa0e5289c upstream.

The rb_time_cmpxchg() on 32-bit architectures requires setting three
32-bit words to represent the 64-bit timestamp, with some salt for
synchronization. Those are: msb, top, and bottom

The issue is, the rb_time_cmpxchg() did not properly salt the msb portion,
and the msb that was written was stale.

Link: https://lore.kernel.org/linux-trace-kernel/20231215084114.20899342@rorschach.local.home

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Fixes: f03f2abce4 ("ring-buffer: Have 32 bit time stamps use all 64 bits")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-12-20 17:02:06 +01:00

..

rv

Merge tag 'trace-tools-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2023-04-28 16:11:26 -07:00

blktrace.c

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bpf_trace.c

bpf: Fix uprobe_multi get_pid_task error path

2023-09-15 10:32:40 -07:00

bpf_trace.h

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error_report-traces.c

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fgraph.c

tracing: arm64: Avoid missing-prototype warnings

2023-07-12 12:06:04 -04:00

fprobe.c

fprobe: Fix to ensure the number of active retprobes is not zero

2023-10-17 10:22:42 +09:00

ftrace_internal.h

tracing: arm64: Avoid missing-prototype warnings

2023-07-12 12:06:04 -04:00

ftrace.c

ftrace: Use LIST_HEAD to initialize clear_hash

2023-09-01 21:18:38 -04:00

Kconfig

Merge tag 'probes-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2023-06-30 10:44:53 -07:00

kprobe_event_gen_test.c

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Makefile

tracing/probes: Move finding func-proto API and getting func-param API to trace_btf

2023-08-23 09:39:45 +09:00

pid_list.c

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pid_list.h

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power-traces.c

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preemptirq_delay_test.c

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rethook.c

rethook: Use __rcu pointer for rethook::handler

2023-12-13 18:45:19 +01:00

ring_buffer_benchmark.c

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ring_buffer.c

ring-buffer: Have rb_time_cmpxchg() set the msb counter too

2023-12-20 17:02:06 +01:00

rpm-traces.c

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synth_event_gen_test.c

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trace_benchmark.c

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trace_benchmark.h

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trace_boot.c

tracing/boot: Test strscpy() against less than zero for error

2023-07-05 10:30:49 -04:00

trace_branch.c

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trace_btf.c

tracing/probes: Add a function to search a member of a struct/union

2023-08-23 09:40:16 +09:00

trace_btf.h

tracing/probes: Add a function to search a member of a struct/union

2023-08-23 09:40:16 +09:00

trace_clock.c

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trace_dynevent.c

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trace_dynevent.h

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trace_entries.h

tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure

2023-07-30 18:11:44 -04:00

trace_eprobe.c

tracing/probes: Support BTF argument on module functions

2023-08-23 09:39:15 +09:00

trace_event_perf.c

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trace_events_filter_test.h

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trace_events_filter.c

tracing: Have trace_event_file have ref counters

2023-11-08 11:56:21 +01:00

trace_events_hist.c

tracing/histograms: Return an error if we fail to add histogram to hist_vars list

2023-07-23 11:18:52 -04:00

trace_events_inject.c

tracing: Have event inject files inc the trace array ref count

2023-09-07 16:38:54 -04:00

trace_events_synth.c

tracing: Have the user copy of synthetic event address use correct context

2023-11-28 17:20:05 +00:00

trace_events_trigger.c

tracing: Fix kernel-doc warnings in trace_events_trigger.c

2023-07-28 19:59:03 -04:00

trace_events_user.c

tracing/user_events: Align set_bit() address for all archs

2023-09-30 16:25:41 -04:00

trace_events.c

tracing: Have trace_event_file have ref counters

2023-11-08 11:56:21 +01:00

trace_export.c

tracing: Add back FORTIFY_SOURCE logic to kernel_stack event structure

2023-07-30 18:11:44 -04:00

trace_fprobe.c

tracing: fprobe-event: Fix to check tracepoint event and return

2023-11-28 17:20:13 +00:00

trace_functions_graph.c

function_graph: Support recording and printing the return value of function

2023-06-20 18:38:37 -04:00

trace_functions.c

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trace_hwlat.c

tracing: Remove extra space at the end of hwlat_detector/mode

2023-09-01 21:00:00 -04:00

trace_irqsoff.c

tracing: Fix memleak due to race between current_tracer and trace

2023-08-17 13:49:37 -04:00

trace_kdb.c

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trace_kprobe_selftest.c

tracing: arm64: Avoid missing-prototype warnings

2023-07-12 12:06:04 -04:00

trace_kprobe_selftest.h

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trace_kprobe.c

tracing/kprobes: Fix the order of argument descriptions

2023-11-20 11:59:38 +01:00

trace_mmiotrace.c

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trace_nop.c

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trace_osnoise.c

tracing/timerlat: Add user-space interface

2023-06-22 10:39:56 -04:00

trace_output.c

Merge tag 'trace-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2023-06-30 10:33:17 -07:00

trace_output.h

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trace_preemptirq.c

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trace_printk.c

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trace_probe_kernel.h

tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

2023-07-14 17:04:58 +09:00

trace_probe_tmpl.h

tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

2023-07-14 17:04:58 +09:00

trace_probe.c

tracing/probes: Add string type check with BTF

2023-08-23 09:41:13 +09:00

trace_probe.h

tracing/kprobes: Return EADDRNOTAVAIL when func matches several symbols

2023-10-20 22:10:41 +09:00

trace_recursion_record.c

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trace_sched_switch.c

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trace_sched_wakeup.c

tracing: Fix memleak due to race between current_tracer and trace

2023-08-17 13:49:37 -04:00

trace_selftest_dynamic.c

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trace_selftest.c

tracing: Have function_graph selftest call cond_resched()

2023-05-28 21:15:46 -04:00

trace_seq.c

tracing: Fix kernel-doc warnings in trace_seq.c

2023-07-28 19:59:04 -04:00

trace_stack.c

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trace_stat.c

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trace_stat.h

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trace_synth.h

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trace_syscalls.c

tracing: bpf: use struct trace_entry in struct syscall_tp_t

2023-08-01 10:53:28 -07:00

trace_uprobe.c

Merge tag 'probes-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

2023-09-02 11:10:50 -07:00

trace.c

tracing: Update snapshot buffer on resize if it is allocated

2023-12-20 17:02:05 +01:00

trace.h

tracing: Have trace_event_file have ref counters

2023-11-08 11:56:21 +01:00

tracing_map.c

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tracing_map.h

tracing: Remove unused extern declaration tracing_map_set_field_descr()

2023-07-23 11:08:14 -04:00