Re: Deadlock on poweroff

2012-10-07 Thread Kirill A. Shutemov
e: > > > > Hi Paul and all, > > > > > > > > With commit 755609a9087fa983f567dc5452b2fa7b089b591f I've got deadlock > > > > on > > > > poweroff. > > > > > > > > It guess it happens because of race for cpu_hotplu

Re: Deadlock on poweroff

2012-10-07 Thread Paul E. McKenney
09a9087fa983f567dc5452b2fa7b089b591f I've got deadlock on > > > poweroff. > > > > > > It guess it happens because of race for cpu_hotplug.lock: > > > > > > CPU A CPU B > > > disable_nonboot_cpus() >

Re: Deadlock on poweroff

2012-10-07 Thread Paul E. McKenney
12 at 09:03:11AM -0700, Paul E. McKenney wrote: > >>>> On Sun, Oct 07, 2012 at 05:47:11AM +0300, Kirill A. Shutemov wrote: > >>>>> Hi Paul and all, > >>>>> > >>>>> With commit 755609a9087fa983f567dc5452b2fa7b089b591f I&#x

Re: Deadlock on poweroff

2012-10-07 Thread Srivatsa S. Bhat
at 05:47:11AM +0300, Kirill A. Shutemov wrote: >>>>> Hi Paul and all, >>>>> >>>>> With commit 755609a9087fa983f567dc5452b2fa7b089b591f I've got deadlock on >>>>> poweroff. >>>>> >>>>> It guess it happens

Re: Deadlock on poweroff

2012-10-07 Thread Kirill A. Shutemov
; >>> Hi Paul and all, > >>> > >>> With commit 755609a9087fa983f567dc5452b2fa7b089b591f I've got deadlock on > >>> poweroff. > >>> > >>> It guess it happens because of race for cpu_hotplug.lock: > >>> > >>>

Re: Deadlock on poweroff

2012-10-07 Thread Srivatsa S. Bhat
On 10/07/2012 10:20 PM, Kirill A. Shutemov wrote: > On Sun, Oct 07, 2012 at 09:03:11AM -0700, Paul E. McKenney wrote: >> On Sun, Oct 07, 2012 at 05:47:11AM +0300, Kirill A. Shutemov wrote: >>> Hi Paul and all, >>> >>> With commit 755609a9087fa983f567dc545

Re: Deadlock on poweroff

2012-10-07 Thread Kirill A. Shutemov
On Sun, Oct 07, 2012 at 09:03:11AM -0700, Paul E. McKenney wrote: > On Sun, Oct 07, 2012 at 05:47:11AM +0300, Kirill A. Shutemov wrote: > > Hi Paul and all, > > > > With commit 755609a9087fa983f567dc5452b2fa7b089b591f I've got deadlock on > > poweroff. > > &

Deadlock on poweroff

2012-10-06 Thread Kirill A. Shutemov
Hi Paul and all, With commit 755609a9087fa983f567dc5452b2fa7b089b591f I've got deadlock on poweroff. It guess it happens because of race for cpu_hotplug.lock: CPU A CPU B disable_nonboot_cpus() _cpu_down() cpu_hotplug_begin() mutex