Re: [sched/get_online_cpus] INFO: task swapper/0:1 blocked for more than 120 seconds.

2013-11-12 Thread Michael wang
On 11/12/2013 05:55 PM, Fengguang Wu wrote: [snip] >> >> Good thinking.. Wu did this cure stuff? Thanks for the confirm :) > > Yes, it fixed the problem. Thanks for the testing :) > > Tested-by: Fengguang Wu > Will send out a formal patch later. Regards, Michael Wang > > /kernel/i386-ra

Re: [sched/get_online_cpus] INFO: task swapper/0:1 blocked for more than 120 seconds.

2013-11-12 Thread Fengguang Wu
On Mon, Nov 11, 2013 at 05:20:22PM +0100, Peter Zijlstra wrote: > On Mon, Nov 11, 2013 at 03:47:11PM +0800, Michael wang wrote: > > Hi, Fengguang > > > > On 11/10/2013 06:16 PM, Fengguang Wu wrote: > > > Greetings, > > > > > > I got the below dmesg and the first bad commit is > > > > I guess thi

Re: [sched/get_online_cpus] INFO: task swapper/0:1 blocked for more than 120 seconds.

2013-11-11 Thread Peter Zijlstra
On Mon, Nov 11, 2013 at 03:47:11PM +0800, Michael wang wrote: > Hi, Fengguang > > On 11/10/2013 06:16 PM, Fengguang Wu wrote: > > Greetings, > > > > I got the below dmesg and the first bad commit is > > I guess this will disappear when '!CONFIG_RCU_BOOST'... > > AFAIK, if the rsp was in boost m

Re: [sched/get_online_cpus] INFO: task swapper/0:1 blocked for more than 120 seconds.

2013-11-10 Thread Michael wang
Hi, Fengguang On 11/10/2013 06:16 PM, Fengguang Wu wrote: > Greetings, > > I got the below dmesg and the first bad commit is I guess this will disappear when '!CONFIG_RCU_BOOST'... AFAIK, if the rsp was in boost mode, we count on smpboot-thread 'rcu_cpu_thread_spec' to finish the callback, whic