This patchset adds a library that captures error reports from debugging tools like KASAN or KFENCE and exposes those reports to userspace via sysfs. Report capturing is controlled by two new types of tracepoints: error_report_start and error_report_end, that must be added to the tools that want to use this new feature. v2: - added ABI documentation for /sys/kernel/error_report/ - changed error_report_start and error_report end tracepoints to take a fixed set of values for the error detector Alexander Potapenko (5): tracing: add error_report trace points lib: add error_report_notify to collect debugging tools' reports docs: ABI: add /sys/kernel/error_report/ documentation kfence: use error_report_start and error_report_end tracepoints kasan: use error_report_start and error_report_end tracepoints .../ABI/testing/sysfs-kernel-error_report | 41 +++ include/trace/events/error_report.h | 84 ++++++ kernel/trace/Makefile | 1 + kernel/trace/error_report-traces.c | 11 + lib/Kconfig.debug | 14 + lib/Makefile | 2 + lib/error_report_notify.c | 278 ++++++++++++++++++ mm/kasan/report.c | 15 +- mm/kfence/report.c | 3 + 9 files changed, 443 insertions(+), 6 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-kernel-error_report create mode 100644 include/trace/events/error_report.h create mode 100644 kernel/trace/error_report-traces.c create mode 100644 lib/error_report_notify.c -- 2.30.0.284.gd98b1dd5eaa7-goog
