Re: Softlockup and Hardlockup sample test module

2018-04-15 Thread Cong Wang
On Sun, Apr 15, 2018 at 12:47 AM, Ivid Suvarna wrote: > Hi All, > > Could you please provide some sample test module for causing a > Softlockup and Hardlockup in latest kernel for SMP for testing > purposes. I assume there are some Kconfigs to be enabled as well for > this. https://github.com/to

Re: Softlockup and Hardlockup sample test module

2018-04-15 Thread valdis . kletnieks
On Sun, 15 Apr 2018 13:17:27 +0530, Ivid Suvarna said: > I had tried with the module where I put a busy loop inside spinlock > but was not able to cause any lockups. Maybe this is because of SMP > which schedule the job to other CPU. "How do I make a task to run on > single CPU only?" So you get

Softlockup and Hardlockup sample test module

2018-04-15 Thread Ivid Suvarna
Hi All, Could you please provide some sample test module for causing a Softlockup and Hardlockup in latest kernel for SMP for testing purposes. I assume there are some Kconfigs to be enabled as well for this. I had tried with the module where I put a busy loop inside spinlock but was not able to