Re: [BUG] sched: tip/master show panic while booting/rebooting

2014-02-24 Thread Paul E. McKenney
On Tue, Feb 25, 2014 at 10:45:26AM +0800, Michael wang wrote: > Hi, Paul > > On 02/25/2014 08:30 AM, Paul E. McKenney wrote: > [snip] > > > > I don't see an opportunity for load_balance() to loop with interrupts > > disabled, but maybe I am looking at the wrong code. The NMI handler > > looks to

Re: [BUG] sched: tip/master show panic while booting/rebooting

2014-02-24 Thread Michael wang
Hi, Paul On 02/25/2014 08:30 AM, Paul E. McKenney wrote: [snip] > > I don't see an opportunity for load_balance() to loop with interrupts > disabled, but maybe I am looking at the wrong code. The NMI handler > looks to me like it is diagnosing rather than being the problem. Thanks for the comme

Re: [BUG] sched: tip/master show panic while booting/rebooting

2014-02-24 Thread Paul E. McKenney
On Tue, Feb 18, 2014 at 01:12:03PM +0800, Michael wang wrote: > Hi, Folks > > Got below panic while testing tip/master on x86 box, it randomly > occur while booting or rebooting, any ideas? > > Regards, > Michael Wang > > > > systemd-readahead-collect[484]: Failed to create fanotify object: Fu

Re: [BUG] sched: tip/master show panic while booting/rebooting

2014-02-19 Thread Peter Zijlstra
On Wed, Feb 19, 2014 at 11:12:11AM +0800, Michael wang wrote: > On 02/18/2014 07:22 PM, Peter Zijlstra wrote: > > On Tue, Feb 18, 2014 at 01:12:03PM +0800, Michael wang wrote: > >> Hi, Folks > >> > >> Got below panic while testing tip/master on x86 box, it randomly > >> occur while booting or reboo

Re: [BUG] sched: tip/master show panic while booting/rebooting

2014-02-18 Thread Michael wang
On 02/18/2014 07:22 PM, Peter Zijlstra wrote: > On Tue, Feb 18, 2014 at 01:12:03PM +0800, Michael wang wrote: >> Hi, Folks >> >> Got below panic while testing tip/master on x86 box, it randomly >> occur while booting or rebooting, any ideas? > > The obvious pick would be the relocation of the idle

Re: [BUG] sched: tip/master show panic while booting/rebooting

2014-02-18 Thread Peter Zijlstra
On Tue, Feb 18, 2014 at 01:12:03PM +0800, Michael wang wrote: > Hi, Folks > > Got below panic while testing tip/master on x86 box, it randomly > occur while booting or rebooting, any ideas? The obvious pick would be the relocation of the idle_balance call, but I'm not sure how that'll end up stal