Re: task_work_add/scheduler_tick: possible circular locking dependency detected

2012-10-01 Thread Fengguang Wu
On Mon, Oct 01, 2012 at 02:05:15PM +0200, Ingo Molnar wrote: > > * Fengguang Wu wrote: > > > On Mon, Oct 01, 2012 at 12:50:39PM +0200, Peter Zijlstra wrote: > > > On Fri, 2012-09-28 at 19:34 +0800, Fengguang Wu wrote: > > > > Peter, > > > > > > > > I got the warning > > > > > > > > [ 10.4120

Re: task_work_add/scheduler_tick: possible circular locking dependency detected

2012-10-01 Thread Ingo Molnar
* Fengguang Wu wrote: > On Mon, Oct 01, 2012 at 12:50:39PM +0200, Peter Zijlstra wrote: > > On Fri, 2012-09-28 at 19:34 +0800, Fengguang Wu wrote: > > > Peter, > > > > > > I got the warning > > > > > > [ 10.412023] > > > [ 10.412611] ==

Re: task_work_add/scheduler_tick: possible circular locking dependency detected

2012-10-01 Thread Fengguang Wu
On Mon, Oct 01, 2012 at 12:50:39PM +0200, Peter Zijlstra wrote: > On Fri, 2012-09-28 at 19:34 +0800, Fengguang Wu wrote: > > Peter, > > > > I got the warning > > > > [ 10.412023] > > [ 10.412611] == > > [ 10.413014] [ INFO: possible circu

Re: task_work_add/scheduler_tick: possible circular locking dependency detected

2012-10-01 Thread Peter Zijlstra
On Fri, 2012-09-28 at 19:34 +0800, Fengguang Wu wrote: > Peter, > > I got the warning > > [ 10.412023] > [ 10.412611] == > [ 10.413014] [ INFO: possible circular locking dependency detected ] > [ 10.413014] 3.6.0-rc4-00098-g7eaffe9 #402