Re: WARNING: at kernel/rcutree.c:1550 __rcu_process_callbacks+0x46f/0x4b0()

2012-07-20 Thread Srivatsa S. Bhat
On 07/20/2012 08:06 PM, Paul E. McKenney wrote: > On Fri, Jul 20, 2012 at 04:11:00PM +0530, Srivatsa S. Bhat wrote: >> On 07/19/2012 10:45 PM, Paul E. McKenney wrote: >>> On Thu, Jul 19, 2012 at 05:39:30PM +0530, Srivatsa S. Bhat wrote: Hi Paul, While running a CPU hotplug stress tes

Re: WARNING: at kernel/rcutree.c:1550 __rcu_process_callbacks+0x46f/0x4b0()

2012-07-20 Thread Paul E. McKenney
On Fri, Jul 20, 2012 at 04:11:00PM +0530, Srivatsa S. Bhat wrote: > On 07/19/2012 10:45 PM, Paul E. McKenney wrote: > > On Thu, Jul 19, 2012 at 05:39:30PM +0530, Srivatsa S. Bhat wrote: > >> Hi Paul, > >> > >> While running a CPU hotplug stress test on v3.5-rc7+ > >> (mainline commit 8a7298b7805ab)

Re: WARNING: at kernel/rcutree.c:1550 __rcu_process_callbacks+0x46f/0x4b0()

2012-07-20 Thread Srivatsa S. Bhat
On 07/19/2012 10:45 PM, Paul E. McKenney wrote: > On Thu, Jul 19, 2012 at 05:39:30PM +0530, Srivatsa S. Bhat wrote: >> Hi Paul, >> >> While running a CPU hotplug stress test on v3.5-rc7+ >> (mainline commit 8a7298b7805ab) I hit this warning. >> I haven't tried to debug this yet... >> >> Line number

Re: WARNING: at kernel/rcutree.c:1550 __rcu_process_callbacks+0x46f/0x4b0()

2012-07-19 Thread Paul E. McKenney
On Thu, Jul 19, 2012 at 05:39:30PM +0530, Srivatsa S. Bhat wrote: > Hi Paul, > > While running a CPU hotplug stress test on v3.5-rc7+ > (mainline commit 8a7298b7805ab) I hit this warning. > I haven't tried to debug this yet... > > Line number 1550 maps to: > > WARN_ON_ONCE(cpu_is_offline(smp_pro

WARNING: at kernel/rcutree.c:1550 __rcu_process_callbacks+0x46f/0x4b0()

2012-07-19 Thread Srivatsa S. Bhat
95436] CPU 3 is now offline [ 1206.097086] CPU 3 offline: Remove Rx thread [ 1206.099133] CPU 2 MCA banks CMCI:0 CMCI:1 CMCI:3 [ 1206.103750] [ cut here ] [ 1206.103758] WARNING: at kernel/rcutree.c:1550 __rcu_process_callbacks+0x46f/0x4b0() [ 1206.103759] Hardware name: 41