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From: Jiri Olsa <jolsa@kernel.org>
To: Masami Hiramatsu <mhiramat@kernel.org>,
	Steven Rostedt <rostedt@goodmis.org>,
	Josh Poimboeuf <jpoimboe@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
	bpf@vger.kernel.org, linux-trace-kernel@vger.kernel.org,
	x86@kernel.org, Yonghong Song <yhs@fb.com>,
	Song Liu <songliubraving@fb.com>,
	Andrii Nakryiko <andrii@kernel.org>,
	Mahe Tardy <mahe.tardy@gmail.com>
Subject: [PATCH bpf-next 0/4] x86/fgraph,bpf: Fix ORC stack unwind from kprobe_multi
Date: Mon, 12 Jan 2026 22:49:36 +0100	[thread overview]
Message-ID: <20260112214940.1222115-1-jolsa@kernel.org> (raw)

hi,
Mahe reported missing function from stack trace on top of kprobe multi
program. It turned out the latest fix [1] needs some more fixing.

thanks,
jirka


[1] https://lore.kernel.org/bpf/20251104215405.168643-1-jolsa@kernel.org/
---
Jiri Olsa (4):
      x86/fgraph: Fix return_to_handler regs.rsp value
      x86/fgraph,bpf: Switch kprobe_multi program stack unwind to hw_regs path
      selftests/bpf: Fix kprobe multi stacktrace_ips test
      selftests/bpf: Allow to benchmark trigger with stacktrace

 arch/x86/include/asm/ftrace.h                           |  2 +-
 arch/x86/kernel/ftrace_64.S                             |  4 +++-
 kernel/trace/fgraph.c                                   |  2 +-
 tools/testing/selftests/bpf/bench.c                     |  4 ++++
 tools/testing/selftests/bpf/bench.h                     |  1 +
 tools/testing/selftests/bpf/benchs/bench_trigger.c      |  1 +
 tools/testing/selftests/bpf/prog_tests/stacktrace_ips.c |  3 ++-
 tools/testing/selftests/bpf/progs/trigger_bench.c       | 18 ++++++++++++++++++
 8 files changed, 31 insertions(+), 4 deletions(-)

             reply	other threads:[~2026-01-12 21:49 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-01-12 21:49 Jiri Olsa [this message]
2026-01-12 21:49 ` [PATCH bpf-next 1/4] x86/fgraph: Fix return_to_handler regs.rsp value Jiri Olsa
2026-01-12 21:49 ` [PATCH bpf-next 2/4] x86/fgraph,bpf: Switch kprobe_multi program stack unwind to hw_regs path Jiri Olsa
2026-01-12 22:07   ` Steven Rostedt
2026-01-13 11:43     ` Jiri Olsa
2026-01-15 18:52       ` Andrii Nakryiko
2026-01-16 16:25         ` Jiri Olsa
2026-01-16 22:24           ` Andrii Nakryiko
2026-01-20 14:50             ` Steven Rostedt
2026-01-20 16:17       ` Jiri Olsa
2026-01-12 21:49 ` [PATCH bpf-next 3/4] selftests/bpf: Fix kprobe multi stacktrace_ips test Jiri Olsa
2026-01-12 21:49 ` [PATCH bpf-next 4/4] selftests/bpf: Allow to benchmark trigger with stacktrace Jiri Olsa
2026-01-15 18:48   ` Andrii Nakryiko
2026-01-15 18:50     ` Andrii Nakryiko
2026-01-16 16:30       ` Jiri Olsa
2026-01-16 16:26     ` Jiri Olsa
2026-01-22  8:35     ` Jiri Olsa

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