Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-05 Thread Paul E. McKenney
On Wed, Mar 05, 2014 at 04:42:55PM -0800, Florian Fainelli wrote: > 2014-03-04 21:34 GMT-08:00 Paul E. McKenney : > > On Tue, Mar 04, 2014 at 07:55:03PM -0800, Florian Fainelli wrote: > >> 2014-03-04 17:43 GMT-08:00 Paul E. McKenney : > >> > On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-05 Thread Florian Fainelli
2014-03-04 21:34 GMT-08:00 Paul E. McKenney : > On Tue, Mar 04, 2014 at 07:55:03PM -0800, Florian Fainelli wrote: >> 2014-03-04 17:43 GMT-08:00 Paul E. McKenney : >> > On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: >> >> 2014-03-04 17:03 GMT-08:00 Florian Fainelli : >> >> >

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-05 Thread Florian Fainelli
2014-03-04 21:34 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar 04, 2014 at 07:55:03PM -0800, Florian Fainelli wrote: 2014-03-04 17:43 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: 2014-03-04 17:03

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-05 Thread Paul E. McKenney
On Wed, Mar 05, 2014 at 04:42:55PM -0800, Florian Fainelli wrote: 2014-03-04 21:34 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar 04, 2014 at 07:55:03PM -0800, Florian Fainelli wrote: 2014-03-04 17:43 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Paul E. McKenney
On Tue, Mar 04, 2014 at 07:55:03PM -0800, Florian Fainelli wrote: > 2014-03-04 17:43 GMT-08:00 Paul E. McKenney : > > On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: > >> 2014-03-04 17:03 GMT-08:00 Florian Fainelli : > >> > 2014-03-04 16:48 GMT-08:00 Eric Dumazet : > >> >> On

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 17:43 GMT-08:00 Paul E. McKenney : > On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: >> 2014-03-04 17:03 GMT-08:00 Florian Fainelli : >> > 2014-03-04 16:48 GMT-08:00 Eric Dumazet : >> >> On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: >> >>> Hi all, >> >>>

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 17:41 GMT-08:00 Paul E. McKenney : > On Tue, Mar 04, 2014 at 05:03:24PM -0800, Florian Fainelli wrote: >> 2014-03-04 16:48 GMT-08:00 Eric Dumazet : >> > On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: >> >> Hi all, >> >> >> >> I am seeing the following RCU stalls messages

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Paul E. McKenney
On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: > 2014-03-04 17:03 GMT-08:00 Florian Fainelli : > > 2014-03-04 16:48 GMT-08:00 Eric Dumazet : > >> On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: > >>> Hi all, > >>> > >>> I am seeing the following RCU stalls messages

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Paul E. McKenney
On Tue, Mar 04, 2014 at 05:03:24PM -0800, Florian Fainelli wrote: > 2014-03-04 16:48 GMT-08:00 Eric Dumazet : > > On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: > >> Hi all, > >> > >> I am seeing the following RCU stalls messages appearing on an ARMv7 > >> 4xCPUs system running

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 17:03 GMT-08:00 Florian Fainelli : > 2014-03-04 16:48 GMT-08:00 Eric Dumazet : >> On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: >>> Hi all, >>> >>> I am seeing the following RCU stalls messages appearing on an ARMv7 >>> 4xCPUs system running 3.14-rc4: >>> >>> [ 42.974327]

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 16:48 GMT-08:00 Eric Dumazet : > On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: >> Hi all, >> >> I am seeing the following RCU stalls messages appearing on an ARMv7 >> 4xCPUs system running 3.14-rc4: >> >> [ 42.974327] INFO: rcu_sched detected stalls on CPUs/tasks: >> [

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Eric Dumazet
On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: > Hi all, > > I am seeing the following RCU stalls messages appearing on an ARMv7 > 4xCPUs system running 3.14-rc4: > > [ 42.974327] INFO: rcu_sched detected stalls on CPUs/tasks: > [ 42.979839] (detected by 0, t=2102 jiffies,

RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
Hi all, I am seeing the following RCU stalls messages appearing on an ARMv7 4xCPUs system running 3.14-rc4: [ 42.974327] INFO: rcu_sched detected stalls on CPUs/tasks: [ 42.979839] (detected by 0, t=2102 jiffies, g=4294967082, c=4294967081, q=516) [ 42.987169] INFO: Stall ended before

RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
Hi all, I am seeing the following RCU stalls messages appearing on an ARMv7 4xCPUs system running 3.14-rc4: [ 42.974327] INFO: rcu_sched detected stalls on CPUs/tasks: [ 42.979839] (detected by 0, t=2102 jiffies, g=4294967082, c=4294967081, q=516) [ 42.987169] INFO: Stall ended before

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Eric Dumazet
On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: Hi all, I am seeing the following RCU stalls messages appearing on an ARMv7 4xCPUs system running 3.14-rc4: [ 42.974327] INFO: rcu_sched detected stalls on CPUs/tasks: [ 42.979839] (detected by 0, t=2102 jiffies,

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 16:48 GMT-08:00 Eric Dumazet eric.duma...@gmail.com: On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: Hi all, I am seeing the following RCU stalls messages appearing on an ARMv7 4xCPUs system running 3.14-rc4: [ 42.974327] INFO: rcu_sched detected stalls on

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 17:03 GMT-08:00 Florian Fainelli f.faine...@gmail.com: 2014-03-04 16:48 GMT-08:00 Eric Dumazet eric.duma...@gmail.com: On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: Hi all, I am seeing the following RCU stalls messages appearing on an ARMv7 4xCPUs system running

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Paul E. McKenney
On Tue, Mar 04, 2014 at 05:03:24PM -0800, Florian Fainelli wrote: 2014-03-04 16:48 GMT-08:00 Eric Dumazet eric.duma...@gmail.com: On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: Hi all, I am seeing the following RCU stalls messages appearing on an ARMv7 4xCPUs system running

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 17:41 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar 04, 2014 at 05:03:24PM -0800, Florian Fainelli wrote: 2014-03-04 16:48 GMT-08:00 Eric Dumazet eric.duma...@gmail.com: On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: Hi all, I am seeing the

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Paul E. McKenney
On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: 2014-03-04 17:03 GMT-08:00 Florian Fainelli f.faine...@gmail.com: 2014-03-04 16:48 GMT-08:00 Eric Dumazet eric.duma...@gmail.com: On Tue, 2014-03-04 at 15:55 -0800, Florian Fainelli wrote: Hi all, I am seeing the

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Florian Fainelli
2014-03-04 17:43 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: 2014-03-04 17:03 GMT-08:00 Florian Fainelli f.faine...@gmail.com: 2014-03-04 16:48 GMT-08:00 Eric Dumazet eric.duma...@gmail.com: On Tue, 2014-03-04 at

Re: RCU stalls when running out of memory on 3.14-rc4 w/ NFS and kernel threads priorities changed

2014-03-04 Thread Paul E. McKenney
On Tue, Mar 04, 2014 at 07:55:03PM -0800, Florian Fainelli wrote: 2014-03-04 17:43 GMT-08:00 Paul E. McKenney paul...@linux.vnet.ibm.com: On Tue, Mar 04, 2014 at 05:16:27PM -0800, Florian Fainelli wrote: 2014-03-04 17:03 GMT-08:00 Florian Fainelli f.faine...@gmail.com: 2014-03-04 16:48