Re: [next-20170609] Oops while running CPU off-on (cpuset.c/cpuset_can_attach)

2017-07-06 Thread Abdul Haleem
On Wed, 2017-07-05 at 11:28 -0400, Tejun Heo wrote: > Hello, Abdul. > > Thanks for the debug info. Can you please see whether the following > patch fixes the issue? It is my pleasure and yes the patch fixes the problem. > If the problem is too difficult to reproduce The problem was reproduci

Re: [next-20170609] Oops while running CPU off-on (cpuset.c/cpuset_can_attach)

2017-07-05 Thread Tejun Heo
Hello, Abdul. Thanks for the debug info. Can you please see whether the following patch fixes the issue? If the problem is too difficult to reproduce to confirm the fix by seeing whether it no longer triggers, please let me know. We can instead apply a patch which triggers WARN on the failing c

Re: [next-20170609] Oops while running CPU off-on (cpuset.c/cpuset_can_attach)

2017-07-03 Thread Abdul Haleem
On Tue, 2017-06-27 at 11:36 -0400, Tejun Heo wrote: > Hello, Abdul. > > Sorry about the long delay. > > On Mon, Jun 12, 2017 at 04:53:42PM +0530, Abdul Haleem wrote: > > linux-next kernel crashed while running CPU offline and online. > > > > Machine: Power 8 LPAR > > Kernel : 4.12.0-rc4-next-201

Re: [next-20170609] Oops while running CPU off-on (cpuset.c/cpuset_can_attach)

2017-06-27 Thread Tejun Heo
Hello, Abdul. Sorry about the long delay. On Mon, Jun 12, 2017 at 04:53:42PM +0530, Abdul Haleem wrote: > linux-next kernel crashed while running CPU offline and online. > > Machine: Power 8 LPAR > Kernel : 4.12.0-rc4-next-20170609 > gcc : version 5.2.1 > config: attached > testcase: CPU off/on

Re: [next-20170609] Oops while running CPU off-on (cpuset.c/cpuset_can_attach)

2017-06-21 Thread Stephen Rothwell
Hi all, On Tue, 13 Jun 2017 09:56:41 -0400 Tejun Heo wrote: > > (forwarding to Li w/ full body) > > Li, can you please take a look at this? > > Thanks. > > On Mon, Jun 12, 2017 at 04:53:42PM +0530, Abdul Haleem wrote: > > Hi, > > > > linux-next kernel crashed while running CPU offline and onl