linux-kernel - [PATCH v2 0/5] Add sysfs interface to collect reports from debugging tools

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Message-Id: <20210115130336.2520663-1-glider@google.com>
Date:   Fri, 15 Jan 2021 14:03:31 +0100
From:   Alexander Potapenko <glider@...gle.com>
To:     linux-kernel@...r.kernel.org, akpm@...ux-foundation.org
Cc:     andreyknvl@...gle.com, dvyukov@...gle.com, mingo@...hat.com,
        elver@...gle.com, pmladek@...e.com, rostedt@...dmis.org,
        sergey.senozhatsky@...il.com, glider@...gle.com, linux-mm@...ck.org
Subject: [PATCH v2 0/5] Add sysfs interface to collect reports from debugging tools

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