Re: [PATCH v2] hung_task:add detecting task in D state milliseconds timeout

2020-07-05 Thread Matthew Wilcox
On Sun, Jul 05, 2020 at 08:48:52PM +0800, yang che wrote: > @@ -16,8 +16,9 @@ extern unsigned int sysctl_hung_task_all_cpu_backtrace; > > extern intsysctl_hung_task_check_count; > extern unsigned int sysctl_hung_task_panic; > +extern unsigned long sysctl_hung_task_timeout_millisecs;

[PATCH v2] hung_task:add detecting task in D state milliseconds timeout

2020-07-05 Thread yang che
current hung_task_check_interval_secs and hung_task_timeout_secs only supports seconds. In some cases,the TASK_UNINTERRUPTIBLE state takes less than 1 second,may need to hung task trigger panic get ramdump or print all cpu task. modify hung_task_check_interval_secs to hung_task_check_interval_mill