Re: memory-hotplug : possible circular locking dependency detected

2012-09-13 Thread Yasuaki Ishimatsu
Hi Wen, 2012/09/14 15:02, Wen Congyang wrote: > At 09/13/2012 02:19 PM, Yasuaki Ishimatsu Wrote: >> When I offline a memory on linux-3.6-rc5, "possible circular >> locking dependency detected" messages are shown. >> Are the messages known problem? > > It is

Re: memory-hotplug : possible circular locking dependency detected

2012-09-13 Thread Wen Congyang
At 09/13/2012 02:19 PM, Yasuaki Ishimatsu Wrote: > When I offline a memory on linux-3.6-rc5, "possible circular > locking dependency detected" messages are shown. > Are the messages known problem? It is a known problem, but it doesn't cause a deadlock. There is 3 lock

memory-hotplug : possible circular locking dependency detected

2012-09-12 Thread Yasuaki Ishimatsu
When I offline a memory on linux-3.6-rc5, "possible circular locking dependency detected" messages are shown. Are the messages known problem? [ 201.596363] Offlined Pages 32768 [ 201.596373] remove from free list 14 1024 148000 [ 201.596493] remove from free list 140400 1

Re: possible circular locking dependency

2012-05-07 Thread Sergey Senozhatsky
On (05/07/12 10:52), Avi Kivity wrote: > On 05/07/2012 06:47 AM, Paul E. McKenney wrote: > > On Sun, May 06, 2012 at 11:34:39PM +0300, Sergey Senozhatsky wrote: > > > On (05/06/12 09:42), Paul E. McKenney wrote: > > > > On Sun, May 06, 2012 at 11:55:30AM +0300, Avi Kivity wrote: > > > > > On 05/03/

Re: possible circular locking dependency

2012-05-07 Thread Avi Kivity
On 05/07/2012 06:47 AM, Paul E. McKenney wrote: > On Sun, May 06, 2012 at 11:34:39PM +0300, Sergey Senozhatsky wrote: > > On (05/06/12 09:42), Paul E. McKenney wrote: > > > On Sun, May 06, 2012 at 11:55:30AM +0300, Avi Kivity wrote: > > > > On 05/03/2012 11:02 PM, Sergey Senozhatsky wrote: > > > >

Re: possible circular locking dependency

2012-05-06 Thread Paul E. McKenney
On Sun, May 06, 2012 at 11:34:39PM +0300, Sergey Senozhatsky wrote: > On (05/06/12 09:42), Paul E. McKenney wrote: > > On Sun, May 06, 2012 at 11:55:30AM +0300, Avi Kivity wrote: > > > On 05/03/2012 11:02 PM, Sergey Senozhatsky wrote: > > > > Hello, > > > > 3.4-rc5 > > > > > > Whoa. > > > > > > L

Re: possible circular locking dependency

2012-05-06 Thread Sergey Senozhatsky
, should I try solely -rcu or there are several commits to pick up and apply on top of -linus tree? -ss > > > > [32881.212463] kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work > > > properly. Using workaround > > > [32882.360505] > > > [32882.360509]

Re: possible circular locking dependency

2012-05-06 Thread Paul E. McKenney
properly. Using workaround > > [32882.360505] > > [32882.360509] ========== > > [32882.360511] [ INFO: possible circular locking dependency detected ] > > [32882.360515] 3.4.0-rc5-dbg-00932-gfabccd4-dirty #1107 Not tainted > >

Re: possible circular locking dependency

2012-05-06 Thread Avi Kivity
thing wrong directly. Dave, Paul? > [32881.212463] kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work > properly. Using workaround > [32882.360505] > [32882.360509] == > [32882.360511] [ INFO: possible circular locking dependency

possible circular locking dependency

2012-05-03 Thread Sergey Senozhatsky
Hello, 3.4-rc5 [32881.212463] kvm: VM_EXIT_LOAD_IA32_PERF_GLOBAL_CTRL does not work properly. Using workaround [32882.360505] [32882.360509] == [32882.360511] [ INFO: possible circular locking dependency detected ] [32882.360515] 3.4.0-rc5-dbg

3.1.0-rc9-00020-g3ee72ca gives INFO: possible circular locking dependency detected

2011-10-11 Thread Justin P. Mattock
with 3.1.0-rc9-00020-g3ee72c I am getting: [ 4420.437736] === [ 4420.437741] [ INFO: possible circular locking dependency detected ] [ 4420.437744] 3.1.0-rc9-00020-g3ee72ca #1 [ 4420.437746