Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-26 Thread Joel Fernandes
On Tue, Mar 26, 2019 at 01:46:13PM -0700, Paul E. McKenney wrote: [snip] > > Any way, I will just add back CPU0 forcefully to the cpus list in my > > testing, > > without checking for the online file existence, and see what happens :-) If > > there's no smoke, then I'll roll that into a patch and

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-26 Thread Paul E. McKenney
On Tue, Mar 26, 2019 at 02:40:13PM -0400, Joel Fernandes wrote: > On Tue, Mar 26, 2019 at 02:35:49PM -0400, Joel Fernandes wrote: > > On Tue, Mar 26, 2019 at 09:01:40AM -0700, Paul E. McKenney wrote: > > > On Mon, Mar 25, 2019 at 06:40:17PM -0400, Joel Fernandes wrote: > > > > On Mon, Mar 25, 2019

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-26 Thread Joel Fernandes
On Tue, Mar 26, 2019 at 02:35:49PM -0400, Joel Fernandes wrote: > On Tue, Mar 26, 2019 at 09:01:40AM -0700, Paul E. McKenney wrote: > > On Mon, Mar 25, 2019 at 06:40:17PM -0400, Joel Fernandes wrote: > > > On Mon, Mar 25, 2019 at 12:42 PM Paul E. McKenney > > > wrote: > > > > > > > > On Mon, Mar

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-26 Thread Joel Fernandes
On Tue, Mar 26, 2019 at 09:01:40AM -0700, Paul E. McKenney wrote: > On Mon, Mar 25, 2019 at 06:40:17PM -0400, Joel Fernandes wrote: > > On Mon, Mar 25, 2019 at 12:42 PM Paul E. McKenney > > wrote: > > > > > > On Mon, Mar 25, 2019 at 12:33:37PM -0400, Joel Fernandes wrote: > > > > On Mon, Mar 25,

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-26 Thread Paul E. McKenney
On Mon, Mar 25, 2019 at 06:40:17PM -0400, Joel Fernandes wrote: > On Mon, Mar 25, 2019 at 12:42 PM Paul E. McKenney > wrote: > > > > On Mon, Mar 25, 2019 at 12:33:37PM -0400, Joel Fernandes wrote: > > > On Mon, Mar 25, 2019 at 11:02 AM Paul E. McKenney > > > wrote: > > > > > > > > On Fri, Mar

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-25 Thread Joel Fernandes
On Mon, Mar 25, 2019 at 12:42 PM Paul E. McKenney wrote: > > On Mon, Mar 25, 2019 at 12:33:37PM -0400, Joel Fernandes wrote: > > On Mon, Mar 25, 2019 at 11:02 AM Paul E. McKenney > > wrote: > > > > > > On Fri, Mar 22, 2019 at 11:46:19PM -0400, Joel Fernandes (Google) wrote: > > > > The

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-25 Thread Joel Fernandes
On Mon, Mar 25, 2019 at 09:42:53AM -0700, Paul E. McKenney wrote: > On Mon, Mar 25, 2019 at 12:33:37PM -0400, Joel Fernandes wrote: > > On Mon, Mar 25, 2019 at 11:02 AM Paul E. McKenney > > wrote: > > > > > > On Fri, Mar 22, 2019 at 11:46:19PM -0400, Joel Fernandes (Google) wrote: > > > > The

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-25 Thread Paul E. McKenney
On Mon, Mar 25, 2019 at 12:33:37PM -0400, Joel Fernandes wrote: > On Mon, Mar 25, 2019 at 11:02 AM Paul E. McKenney > wrote: > > > > On Fri, Mar 22, 2019 at 11:46:19PM -0400, Joel Fernandes (Google) wrote: > > > The rcutorture jitter.sh script selects a random CPU but does not check > > > if it

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-25 Thread Joel Fernandes
On Mon, Mar 25, 2019 at 11:02 AM Paul E. McKenney wrote: > > On Fri, Mar 22, 2019 at 11:46:19PM -0400, Joel Fernandes (Google) wrote: > > The rcutorture jitter.sh script selects a random CPU but does not check > > if it is offline or online. This leads to taskset errors many times. On > > my

Re: [PATCH] rcutorture: Select from only online CPUs

2019-03-25 Thread Paul E. McKenney
On Fri, Mar 22, 2019 at 11:46:19PM -0400, Joel Fernandes (Google) wrote: > The rcutorture jitter.sh script selects a random CPU but does not check > if it is offline or online. This leads to taskset errors many times. On > my machine, hyper threading is disabled so half the cores are offline >

[PATCH] rcutorture: Select from only online CPUs

2019-03-22 Thread Joel Fernandes (Google)
The rcutorture jitter.sh script selects a random CPU but does not check if it is offline or online. This leads to taskset errors many times. On my machine, hyper threading is disabled so half the cores are offline causing taskset errors a lot of times. Let us fix this by checking from only the