Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-07 Thread Fengguang Wu
On Fri, Sep 07, 2012 at 09:23:16AM +0200, Peter Zijlstra wrote: > On Fri, 2012-09-07 at 09:20 +0800, Fengguang Wu wrote: > > > FYI, the bisect result is > > > > commit 554cecaf733623b327eef9652b65965eb1081b81 > > Author: Diwakar Tundlam > > Date: Wed Mar 7 14:44:26 2012 -0800 > > > > sche

Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-07 Thread Peter Zijlstra
On Fri, 2012-09-07 at 09:20 +0800, Fengguang Wu wrote: > FYI, the bisect result is > > commit 554cecaf733623b327eef9652b65965eb1081b81 > Author: Diwakar Tundlam > Date: Wed Mar 7 14:44:26 2012 -0800 > > sched/nohz: Correctly initialize 'next_balance' in 'nohz' idle balancer > > The '

Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-06 Thread Michael Wang
On 09/07/2012 09:20 AM, Fengguang Wu wrote: > On Wed, Sep 05, 2012 at 08:57:00PM +0800, Fengguang Wu wrote: >> On Wed, Sep 05, 2012 at 12:54:40PM +0200, Peter Zijlstra wrote: >>> On Wed, 2012-09-05 at 12:35 +0800, Michael Wang wrote: > [ 10.968565] reboot: machine restart > [ 10.983510]

Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-06 Thread Fengguang Wu
On Wed, Sep 05, 2012 at 08:57:00PM +0800, Fengguang Wu wrote: > On Wed, Sep 05, 2012 at 12:54:40PM +0200, Peter Zijlstra wrote: > > On Wed, 2012-09-05 at 12:35 +0800, Michael Wang wrote: > > > > [ 10.968565] reboot: machine restart > > > > [ 10.983510] [ cut here ] > > >

Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-05 Thread Fengguang Wu
On Wed, Sep 05, 2012 at 12:54:40PM +0200, Peter Zijlstra wrote: > On Wed, 2012-09-05 at 12:35 +0800, Michael Wang wrote: > > > [ 10.968565] reboot: machine restart > > > [ 10.983510] [ cut here ] > > > [ 10.984218] WARNING: at > > > /c/kernel-tests/src/stable/arch/x86

Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-05 Thread Peter Zijlstra
On Wed, 2012-09-05 at 12:35 +0800, Michael Wang wrote: > > [ 10.968565] reboot: machine restart > > [ 10.983510] [ cut here ] > > [ 10.984218] WARNING: at > > /c/kernel-tests/src/stable/arch/x86/kernel/smp.c:123 > > native_smp_send_reschedule+0x46/0x50() > > [ 10.9

Re: WARNING: cpu_is_offline() at native_smp_send_reschedule()

2012-09-04 Thread Michael Wang
Hi, Feng Guang On 09/05/2012 09:11 AM, Fengguang Wu wrote: > Hi, > > Here is an old problem that happens also in 3.4. It's very unreliable: > it may only happen once per 3000 boots.. > > [ 10.968565] reboot: machine restart > [ 10.983510] [ cut here ] > [ 10.984218]