Re: [PATCH] ARC: [*defconfigs] Enable hung tasks detection

2016-07-21 Thread Eugeniy Paltsev
Hi, Not every time. For example, last time I debug mmap3 LTP's test, which  stuck in "D" state, I didn't recieve any messages until I enabled this option. This happends on nsim 700. On Thu, 2016-07-21 at 09:17 -0700, Vineet Gupta wrote: > On 07/21/2016 07:52 AM, Eugeniy Paltsev wrote: > > > > Enab

Re: [PATCH] ARC: [*defconfigs] Enable hung tasks detection

2016-07-21 Thread Vineet Gupta
On 07/21/2016 07:52 AM, Eugeniy Paltsev wrote: > Enable the kernel to detect "hung tasks", > which are bugs that cause the task to be stuck in > uninterruptible "D" state indefinitiley. spellos above > Note we're setting HUNG_TASK_TIMEOUT to 10 seconds instead of > default 120 to shorten time req

[PATCH] ARC: [*defconfigs] Enable hung tasks detection

2016-07-21 Thread Eugeniy Paltsev
Enable the kernel to detect "hung tasks", which are bugs that cause the task to be stuck in uninterruptible "D" state indefinitiley. Note we're setting HUNG_TASK_TIMEOUT to 10 seconds instead of default 120 to shorten time required for detection of hung task, as it set in axs101, axs103 and axs103_