Messages in this thread | ![/](/images/icornerl.gif) | | From | Ze Gao <> | Subject | [PATCH v3 0/3] Make fprobe + rethook immune to recursion | Date | Wed, 17 May 2023 11:45:05 +0800 |
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Hi all,
This is the 3rd version of patch series that fix the ftrace rethook recursion problem.
Changes since v2: - refine commit message of [PATCH v2 2/4] fprobe: make fprobe_kprobe_handler recursion free
v1: https://lore.kernel.org/linux-trace-kernel/cover.1684120990.git.zegao@tencent.com/T/ v2: https://lore.kernel.org/linux-trace-kernel/ZGP4ypidaxQGdp7Y@krava/T/#mb9e74fe74d5800ee424234b26c6def9d5135237b
The original discussions of this bug can be checked out here:
https://lore.kernel.org/bpf/CAD8CoPCfPmqZH6BJCk3Y1-02BLVVsbQ6OeaNOhcfGWmdF0oX8A@mail.gmail.com/T/#t
Ze Gao (4): rethook: use preempt_{disable, enable}_notrace in rethook_trampoline_handler fprobe: make fprobe_kprobe_handler recursion free fprobe: add recursion detection in fprobe_exit_handler rethook, fprobe: do not trace rethook related functions
arch/riscv/kernel/probes/Makefile | 2 + arch/s390/kernel/Makefile | 1 + arch/x86/kernel/Makefile | 1 + kernel/trace/fprobe.c | 73 ++++++++++++++++++++++++------- kernel/trace/rethook.c | 4 +- 5 files changed, 64 insertions(+), 17 deletions(-)
-- 2.40.1
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