]> 2026-09-08T16:34:31+09:00 Lesson:fast trapless kernel probes everywhere 781e739b 3000 ko Linux tracing, observability, and security instrumentation. Limits: Needs toolchain/kernel-layout changes; some code and architectures remain unsupported. The compiler/linker places strategic NOPs that a transparent Kprobe implementation can patch into trapless probes across nearly all code. S3ResearchAgent medium Venue: USENIX ATC. Year: 2024. Standard Kprobes trap on every hit; optimized probes are faster but cannot instrument much kernel code. Verification: official_abstract; confidence=high. 2026-07-16T14:57:24Z 2461238.1231944 Fast (Trapless) Kernel Probes Everywhere. USENIX ATC 2024. Small compile-time layout support removes a runtime observability tax while preserving compatibility. Fast (Trapless) Kernel Probes Everywhere workloads=Linux kernel probe sites; baselines=standard Kprobe; prior optimized Kprobe; metrics=probe cost; kernel-code coverage; results=10x probe performance; 96% coverage vs about 80% Can Linux Kprobes avoid trap overhead without sacrificing broad kernel-code coverage? lab Reserve cheap patch points during build time for production-safe dynamic instrumentation. Draft 2026-07-18T14:58:32Z 2461240.1239815 2026-07-18T14:58:32Z 2461240.1239815 fast trapless kernel probes everywhere 781e739b 3000 ev_c883f449ecef42a1 2026-07-16T14:57:25Z 2461238.123206 S3ResearchAgent Fast (Trapless) Kernel Probes Everywhere. USENIX ATC 2024. paper Bibliographic paper record. not_recorded fast trapless kernel probes everywhere 781e739b# e56f457c777c4ac8add14c7220df0984 3000 verified-content-v1-0080 2026-07-16T18:47:14Z 2461238.2828009 S3ResearchAgent Jinghao Jia et al., "Fast (Trapless) Kernel Probes Everywhere", USENIX ATC 2024. paper Verification: official_abstract; confidence=high. Canonical title: Fast (Trapless) Kernel Probes Everywhere Question: Can Linux Kprobes avoid trap overhead without sacrificing broad kernel-code coverage? Context: Standard Kprobes trap on every hit; optimized probes are faster but cannot instrument much kernel code. Method: The compiler/linker places strategic NOPs that a transparent Kprobe implementation can patch into trapless probes across nearly all code. Evaluation: workloads=Linux kernel probe sites; baselines=standard Kprobe; prior optimized Kprobe; metrics=probe cost; kernel-code coverage; results=10x probe performance; 96% coverage vs about 80% Interpretation: Small compile-time layout support removes a runtime observability tax while preserving compatibility. Reusable lesson: Reserve cheap patch points during build time for production-safe dynamic instrumentation. Applicability: Linux tracing, observability, and security instrumentation. Limits: Needs toolchain/kernel-layout changes; some code and architectures remain unsupported. not_recorded fast trapless kernel probes everywhere 781e739b# 4a6c252440babf4e5ce154be68001ccb 3000 canonical-paper-v2-781e739b 2026-07-18T05:21:43Z 2461239.7234144 S3ResearchAgent Jinghao Jia et al., "Fast (Trapless) Kernel Probes Everywhere", USENIX ATC 2024. paper Verification: official_abstract; confidence=medium. Canonical title: Fast (Trapless) Kernel Probes Everywhere Question: Can Linux Kprobes avoid trap overhead without sacrificing broad kernel-code coverage? Context: Standard Kprobes trap on every hit; optimized probes are faster but cannot instrument much kernel code. Method: The compiler/linker places strategic NOPs that a transparent Kprobe implementation can patch into trapless probes across nearly all code. Evaluation: workloads=Linux kernel probe sites; baselines=standard Kprobe; prior optimized Kprobe; metrics=probe cost; kernel-code coverage; results=10x probe performance; 96% coverage vs about 80% Interpretation: Small compile-time layout support removes a runtime observability tax while preserving compatibility. Reusable lesson: Reserve cheap patch points during build time for production-safe dynamic instrumentation. Applicability: Linux tracing, observability, and security instrumentation. Limits: Needs toolchain/kernel-layout changes; some code and architectures remain unsupported. official_abstract fast trapless kernel probes everywhere 781e739b# 9d951b4e359233ec36d02f18e3357696 3000 2026-07-18T14:58:31Z 2461240.1239699 S3ResearchAgent verify_e666c6c9b9cd6fff0fdc partial_source context 보존 원문 객체를 확보했으나 이 일괄 검증에서는 claim-bearing 범위를 재판정하지 않아 결론을 보류함. inconclusive 032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 보존 파일 objects/sha256/03/032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 ev_c883f449ecef42a1 ca2a05bf305dd5dbe8f5cf153e1e6f7f0f7636a977b7231b094ca0e237e813b7 fast trapless kernel probes everywhere 781e739b# 734fc31fde9b4ef6a5602cea05e70e2c 3000 2026-07-18T14:58:31Z 2461240.1239699 S3ResearchAgent verify_1f84446b2d44f6ead193 partial_source context 보존 원문 객체를 확보했으나 이 일괄 검증에서는 claim-bearing 범위를 재판정하지 않아 결론을 보류함. inconclusive 032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 보존 파일 objects/sha256/03/032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 verified-content-v1-0080 a33b61f99772dd870cdf9e47a04cd7d1ee0c4f6044683197c7e220ea5f7ac2a0 fast trapless kernel probes everywhere 781e739b# f6067667a07494478a27a8b9dfff60df 3000 2026-07-18T14:58:32Z 2461240.1239815 S3ResearchAgent verify_e28c0d086cd194a380a4 partial_source context 보존 원문 객체를 확보했으나 이 일괄 검증에서는 claim-bearing 범위를 재판정하지 않아 결론을 보류함. inconclusive 032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 R2-RESTIC:7f893ca5afd2cfb6fe320e9b61063ccc70e75a7a96589420038c8cf338b273be; archive-manifest-sha256=e28171fb69e141ce306d92dfe4b10e6cdc6e81d4fa910c30a846204dbcf8edf8; sha256=032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 보존 파일 objects/sha256/03/032244b6cdd2f9a3309b7560cfae2344439b09db081b550644eab65db2bc5438 canonical-paper-v2-781e739b 4be522bf3ff7732dc0c8347739dacc2bfbb4ace82acefb04020ef60bda878c76 fast trapless kernel probes everywhere 781e739b# d84d4f5206d309934c4db5c0b9d1033a