Hi all, This patchset adds a counter, hung_task_detect_count, to track the number of times hung tasks are detected. This counter provides a straightforward way to monitor hung task events without manually checking dmesg logs. With this counter in place, system issues can be spotted quickly, allowing admins to step in promptly before system load spikes occur, even if the hung_task_warnings value has been decreased to 0 well before. Recently, we encountered a situation where warnings about hung tasks were buried in dmesg logs during load spikes. Introducing this counter could have helped us detect such issues earlier and improve our analysis efficiency. Lance Yang (2): hung_task: add detect count for hung tasks hung_task: add docs for hung_task_detect_count Documentation/admin-guide/sysctl/kernel.rst | 9 +++++++++ kernel/hung_task.c | 18 ++++++++++++++++++ 2 files changed, 27 insertions(+) -- 2.45.2
