On 2018/12/11 10:16, Liu, Chuansheng wrote:
> We may enhance it by:
> - if (sysctl_hung_task_warnings) {
> + if (sysctl_hung_task_panic || sysctl_hung_task_warnings) {
> if (sysctl_hung_task_warnings > 0)
> sysctl_hung_task_warnings--;
Why ignore sysctl_hung_task_warnings? The administrator can already
configure as sysctl_hung_task_warnings == -1 && sysctl_hung_task_panic == 1
if he/she does not want to suppress neither sched_show_task() nor
debug_show_all_locks()/trigger_all_cpu_backtrace(). Someone might want
that sysctl_hung_task_warnings == 0 (which is a request to suppress only
sched_show_task()) should not be ignored by sysctl_hung_task_panic == 1
(which is a request to trigger panic).
