Messages in this thread | | | From | Jiri Olsa <> | Subject | [PATCH bpf-next 0/2] bpf: Fix kprobe_multi return probe backtrace | Date | Mon, 21 Mar 2022 08:01:11 +0100 |
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hi, Andrii reported that backtraces from kprobe_multi program attached as return probes are not complete and showing just initial entry [1].
Sending the fix together with bpf_get_func_ip inline revert, which is no longer suitable.
thanks, jirka
--- [1] https://lore.kernel.org/bpf/CAEf4BzZDDqK24rSKwXNp7XL3ErGD4bZa1M6c_c4EvDSt3jrZcg@mail.gmail.com/T/#m8d1301c0ea0892ddf9dc6fba57a57b8cf11b8c51
Jiri Olsa (2): Revert "bpf: Add support to inline bpf_get_func_ip helper on x86" bpf: Fix kprobe_multi return probe backtrace
kernel/bpf/verifier.c | 21 +-------------------- kernel/trace/bpf_trace.c | 68 +++++++++++++++++++++++++++++++++++++------------------------------- 2 files changed, 38 insertions(+), 51 deletions(-)
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