Re: memory-hotplug : possible circular locking dependency detected

2012-09-14 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 a known problem, but it doesn't cause

Re: memory-hotplug : possible circular locking dependency detected

2012-09-14 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 a known problem, but it doesn't cause a deadlock.

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 locks: memory hotplug's lock,

memory-hotplug : possible circular locking dependency detected

2012-09-13 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 1024 148000 [

memory-hotplug : possible circular locking dependency detected

2012-09-13 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 1024 148000 [

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 locks: memory hotplug's lock, memory