Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-14 Thread Qian Cai
On 12/10/18 4:31 PM, Thomas Gleixner wrote: > On Mon, 10 Dec 2018, Peter Zijlstra wrote: >> On Mon, Dec 10, 2018 at 08:52:28AM -0500, Qian Cai wrote: >>> Booting this Huawei TaiShan 2280 arm64 server generated this lockdep >>> warning. >>> >>> [0.00] lockdep_assert_cpus_held+0x50/0x60 >

Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-10 Thread Thomas Gleixner
On Mon, 10 Dec 2018, Peter Zijlstra wrote: > On Mon, Dec 10, 2018 at 08:52:28AM -0500, Qian Cai wrote: > > Booting this Huawei TaiShan 2280 arm64 server generated this lockdep > > warning. > > > > [0.00] lockdep_assert_cpus_held+0x50/0x60 > > [0.00] static_key_enable_cpuslocked+0

Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-10 Thread Qian Cai
On 12/10/18 9:07 AM, Peter Zijlstra wrote: > On Mon, Dec 10, 2018 at 08:52:28AM -0500, Qian Cai wrote: >> Booting this Huawei TaiShan 2280 arm64 server generated this lockdep >> warning. >> >> [0.00] lockdep_assert_cpus_held+0x50/0x60 >> [0.00] static_key_enable_cpuslocked+0x30/

Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-10 Thread Marc Zyngier
On 10/12/2018 13:52, Qian Cai wrote: > Booting this Huawei TaiShan 2280 arm64 server generated this lockdep > warning. > > [0.00] lockdep_assert_cpus_held+0x50/0x60 > [0.00] static_key_enable_cpuslocked+0x30/0xe8 > [0.00] arch_timer_check_ool_workaround+0x128/0x2d0 > [

Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-10 Thread Peter Zijlstra
On Mon, Dec 10, 2018 at 02:19:53PM +, Valentin Schneider wrote: > Hi, > > On 10/12/2018 14:07, Peter Zijlstra wrote: > [...] > > --- > > kernel/cpu.c | 2 ++ > > 1 file changed, 2 insertions(+) > > > > diff --git a/kernel/cpu.c b/kernel/cpu.c > > index 91d5c38eb7e5..e1ee8caf28b5 100644 > > -

Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-10 Thread Valentin Schneider
Hi, On 10/12/2018 14:07, Peter Zijlstra wrote: [...] > --- > kernel/cpu.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/kernel/cpu.c b/kernel/cpu.c > index 91d5c38eb7e5..e1ee8caf28b5 100644 > --- a/kernel/cpu.c > +++ b/kernel/cpu.c > @@ -313,6 +313,8 @@ void cpus_write_unlock(void)

Re: [RESEND PATCH v2] clocksource/arm_arch_timer: fix a lockdep warning

2018-12-10 Thread Peter Zijlstra
On Mon, Dec 10, 2018 at 08:52:28AM -0500, Qian Cai wrote: > Booting this Huawei TaiShan 2280 arm64 server generated this lockdep > warning. > > [0.00] lockdep_assert_cpus_held+0x50/0x60 > [0.00] static_key_enable_cpuslocked+0x30/0xe8 > [0.00] arch_timer_check_ool_workaro