Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Zheng Yejian 7195d0498d tracing: Avoid possible softlockup in tracing_iter_reset() ... [ Upstream commit 49aa8a1f4d6800721c7971ed383078257f12e8f9 ] In __tracing_open(), when max latency tracers took place on the cpu, the time start of its buffer would be updated, then event entries with timestamps being earlier than start of the buffer would be skipped (see tracing_iter_reset()). Softlockup will occur if the kernel is non-preemptible and too many entries were skipped in the loop that reset every cpu buffer, so add cond_resched() to avoid it. Cc: stable@vger.kernel.org Fixes: 2f26ebd549 ("tracing: use timestamp to determine start of latency traces") Link: https://lore.kernel.org/20240827124654.3817443-1-zhengyejian@huaweicloud.com Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Zheng Yejian <zhengyejian@huaweicloud.com> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2024-09-12 11:03:56 +02:00
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blktrace.c
bpf_trace.c	bpf: Clear the probe_addr for uprobe	2023-09-23 10:59:41 +02:00
fgraph.c
ftrace.c
ftrace_internal.h
Kconfig
Makefile
power-traces.c
preemptirq_delay_test.c	tracing: Add MODULE_DESCRIPTION() to preemptirq_delay_test	2024-07-05 09:08:25 +02:00
ring_buffer.c	ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()	2024-09-12 11:03:56 +02:00
ring_buffer_benchmark.c
rpm-traces.c
trace.c	tracing: Avoid possible softlockup in tracing_iter_reset()	2024-09-12 11:03:56 +02:00
trace.h	tracing: Have trace_event_file have ref counters	2023-11-28 16:50:22 +00:00
trace_benchmark.c
trace_benchmark.h
trace_branch.c
trace_clock.c
trace_dynevent.c
trace_dynevent.h
trace_entries.h
trace_event_perf.c	tracing: Show size of requested perf buffer	2024-05-02 16:18:35 +02:00
trace_events.c	tracing: Have trace_event_file have ref counters	2023-11-28 16:50:22 +00:00
trace_events_filter.c	tracing: Have trace_event_file have ref counters	2023-11-28 16:50:22 +00:00
trace_events_filter_test.h
trace_events_hist.c
trace_events_trigger.c	Revert "tracing/trigger: Fix to return error if failed to alloc snapshot"	2024-05-02 16:18:30 +02:00
trace_export.c
trace_functions.c
trace_functions_graph.c	ring-buffer: Rename ring_buffer_read() to read_buffer_iter_advance()	2024-09-12 11:03:56 +02:00
trace_hwlat.c
trace_irqsoff.c	tracing: Fix memleak due to race between current_tracer and trace	2023-08-30 16:27:23 +02:00
trace_kdb.c
trace_kprobe.c
trace_kprobe_selftest.c
trace_kprobe_selftest.h
trace_mmiotrace.c
trace_nop.c
trace_output.c	tracing: Add size check when printing trace_marker output	2024-01-25 14:34:20 -08:00
trace_output.h
trace_preemptirq.c
trace_printk.c
trace_probe.c
trace_probe.h
trace_probe_tmpl.h
trace_sched_switch.c
trace_sched_wakeup.c	tracing: Fix memleak due to race between current_tracer and trace	2023-08-30 16:27:23 +02:00
trace_selftest.c
trace_selftest_dynamic.c
trace_seq.c
trace_stack.c
trace_stat.c
trace_stat.h
trace_syscalls.c
trace_uprobe.c	bpf: Clear the probe_addr for uprobe	2023-09-23 10:59:41 +02:00
tracing_map.c	tracing: Fix overflow in get_free_elt()	2024-08-19 05:33:53 +02:00
tracing_map.h