2016-10-24 22:32 GMT+08:00 Paolo Bonzini :
>
>
> On 19/10/2016 16:30, Wanpeng Li wrote:
>> Cc Radim,
>> 2016-10-19 22:10 GMT+08:00 Paolo Bonzini :
>>>
>>>
>>> On 19/10/2016 16:01, Wanpeng Li wrote:
2016-10-18 8:01 GMT+08:00 Wanpeng Li
2016-10-24 22:32 GMT+08:00 Paolo Bonzini :
>
>
> On 19/10/2016 16:30, Wanpeng Li wrote:
>> Cc Radim,
>> 2016-10-19 22:10 GMT+08:00 Paolo Bonzini :
>>>
>>>
>>> On 19/10/2016 16:01, Wanpeng Li wrote:
2016-10-18 8:01 GMT+08:00 Wanpeng Li :
> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
>
On 19/10/2016 16:30, Wanpeng Li wrote:
> Cc Radim,
> 2016-10-19 22:10 GMT+08:00 Paolo Bonzini :
>>
>>
>> On 19/10/2016 16:01, Wanpeng Li wrote:
>>> 2016-10-18 8:01 GMT+08:00 Wanpeng Li :
2016-10-17 18:08 GMT+08:00 Paolo Bonzini
On 19/10/2016 16:30, Wanpeng Li wrote:
> Cc Radim,
> 2016-10-19 22:10 GMT+08:00 Paolo Bonzini :
>>
>>
>> On 19/10/2016 16:01, Wanpeng Li wrote:
>>> 2016-10-18 8:01 GMT+08:00 Wanpeng Li :
2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
[...]
>>> Something like the below avoids all that.
On 19/10/2016 16:01, Wanpeng Li wrote:
> 2016-10-18 8:01 GMT+08:00 Wanpeng Li :
>> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
>> [...]
> Something like the below avoids all that. Paravirt will still need fixing.
kvm_guest_apic_eoi_write
On 19/10/2016 16:01, Wanpeng Li wrote:
> 2016-10-18 8:01 GMT+08:00 Wanpeng Li :
>> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
>> [...]
> Something like the below avoids all that. Paravirt will still need fixing.
kvm_guest_apic_eoi_write
-> native_apic_msr_write
>>>
>>>
Cc Radim,
2016-10-19 22:10 GMT+08:00 Paolo Bonzini :
>
>
> On 19/10/2016 16:01, Wanpeng Li wrote:
>> 2016-10-18 8:01 GMT+08:00 Wanpeng Li :
>>> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
>>> [...]
>> Something like the below avoids
Cc Radim,
2016-10-19 22:10 GMT+08:00 Paolo Bonzini :
>
>
> On 19/10/2016 16:01, Wanpeng Li wrote:
>> 2016-10-18 8:01 GMT+08:00 Wanpeng Li :
>>> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
>>> [...]
>> Something like the below avoids all that. Paravirt will still need
>> fixing.
>
>
2016-10-18 8:01 GMT+08:00 Wanpeng Li :
> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
> [...]
>>> > Something like the below avoids all that. Paravirt will still need fixing.
>>>
>>> kvm_guest_apic_eoi_write
>>> -> native_apic_msr_write
>>
>>
2016-10-18 8:01 GMT+08:00 Wanpeng Li :
> 2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
> [...]
>>> > Something like the below avoids all that. Paravirt will still need fixing.
>>>
>>> kvm_guest_apic_eoi_write
>>> -> native_apic_msr_write
>>
>> kvm_guest_apic_eoi_write can use
2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
[...]
>> > Something like the below avoids all that. Paravirt will still need fixing.
>>
>> kvm_guest_apic_eoi_write
>> -> native_apic_msr_write
>
> kvm_guest_apic_eoi_write can use native_apic_msr_eoi_write too:
>
> diff --git
2016-10-17 18:08 GMT+08:00 Paolo Bonzini :
[...]
>> > Something like the below avoids all that. Paravirt will still need fixing.
>>
>> kvm_guest_apic_eoi_write
>> -> native_apic_msr_write
>
> kvm_guest_apic_eoi_write can use native_apic_msr_eoi_write too:
>
> diff --git
2016-10-17 16:22 GMT+08:00 Peter Zijlstra :
> On Mon, Oct 17, 2016 at 12:19:43PM +0800, Wanpeng Li wrote:
>> 2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
>
>> >> [] do_trace_write_msr+0x135/0x140
>> >> [] native_write_msr+0x20/0x30
>> >> []
2016-10-17 16:22 GMT+08:00 Peter Zijlstra :
> On Mon, Oct 17, 2016 at 12:19:43PM +0800, Wanpeng Li wrote:
>> 2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
>
>> >> [] do_trace_write_msr+0x135/0x140
>> >> [] native_write_msr+0x20/0x30
>> >> [] native_apic_msr_eoi_write+0x1d/0x30
>> >> []
org, "Wanpeng Li" <wanpeng...@hotmail.com>,
>> "Ingo Molnar" <mi...@kernel.org>, "Mike
>> Galbraith" <efa...@gmx.de>, "Thomas Gleixner" <t...@linutronix.de>, "Paolo
>> Bonzini" <pbonz...@redhat.com>
>> S
ith" , "Thomas Gleixner" , "Paolo
>> Bonzini"
>> Sent: Monday, October 17, 2016 11:45:32 AM
>> Subject: Re: [PATCH] x86/smp: Add irq_enter/exit() in
>> smp_reschedule_interrupt()
>>
>> Cc Paolo,
>> 2016-
...@kernel.org>, "Mike
> Galbraith" <efa...@gmx.de>, "Thomas Gleixner" <t...@linutronix.de>, "Paolo
> Bonzini" <pbonz...@redhat.com>
> Sent: Monday, October 17, 2016 11:45:32 AM
> Subject: Re: [PATCH] x86/smp: Add irq_enter/exit() in
> smp_
- Original Message -
> From: "Wanpeng Li"
> To: "Peter Zijlstra"
> Cc: linux-kernel@vger.kernel.org, "Wanpeng Li" ,
> "Ingo Molnar" , "Mike
> Galbraith" , "Thomas Gleixner" , "Paolo
> Bonzini"
&g
Cc Paolo,
2016-10-17 16:22 GMT+08:00 Peter Zijlstra :
> On Mon, Oct 17, 2016 at 12:19:43PM +0800, Wanpeng Li wrote:
>> 2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
>
>> >> [] do_trace_write_msr+0x135/0x140
>> >> [] native_write_msr+0x20/0x30
>> >>
Cc Paolo,
2016-10-17 16:22 GMT+08:00 Peter Zijlstra :
> On Mon, Oct 17, 2016 at 12:19:43PM +0800, Wanpeng Li wrote:
>> 2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
>
>> >> [] do_trace_write_msr+0x135/0x140
>> >> [] native_write_msr+0x20/0x30
>> >> [] native_apic_msr_eoi_write+0x1d/0x30
>> >>
On Mon, Oct 17, 2016 at 12:19:43PM +0800, Wanpeng Li wrote:
> 2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
> >> [] do_trace_write_msr+0x135/0x140
> >> [] native_write_msr+0x20/0x30
> >> [] native_apic_msr_eoi_write+0x1d/0x30
> >> [] smp_reschedule_interrupt+0x1d/0x30
On Mon, Oct 17, 2016 at 12:19:43PM +0800, Wanpeng Li wrote:
> 2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
> >> [] do_trace_write_msr+0x135/0x140
> >> [] native_write_msr+0x20/0x30
> >> [] native_apic_msr_eoi_write+0x1d/0x30
> >> [] smp_reschedule_interrupt+0x1d/0x30
> >> []
2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
> On Fri, Oct 14, 2016 at 09:48:53AM +0800, Wanpeng Li wrote:
>> ===
>> [ INFO: suspicious RCU usage. ]
>> 4.8.0+ #24 Not tainted
>> ---
>>
2016-10-16 21:39 GMT+08:00 Peter Zijlstra :
> On Fri, Oct 14, 2016 at 09:48:53AM +0800, Wanpeng Li wrote:
>> ===
>> [ INFO: suspicious RCU usage. ]
>> 4.8.0+ #24 Not tainted
>> ---
>> ./arch/x86/include/asm/msr-trace.h:47 suspicious
On Fri, Oct 14, 2016 at 09:48:53AM +0800, Wanpeng Li wrote:
> ===
> [ INFO: suspicious RCU usage. ]
> 4.8.0+ #24 Not tainted
> ---
> ./arch/x86/include/asm/msr-trace.h:47 suspicious rcu_dereference_check()
> usage!
>
> other info
On Fri, Oct 14, 2016 at 09:48:53AM +0800, Wanpeng Li wrote:
> ===
> [ INFO: suspicious RCU usage. ]
> 4.8.0+ #24 Not tainted
> ---
> ./arch/x86/include/asm/msr-trace.h:47 suspicious rcu_dereference_check()
> usage!
>
> other info
===
[ INFO: suspicious RCU usage. ]
4.8.0+ #24 Not tainted
---
./arch/x86/include/asm/msr-trace.h:47 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
RCU used illegally from idle CPU!
===
[ INFO: suspicious RCU usage. ]
4.8.0+ #24 Not tainted
---
./arch/x86/include/asm/msr-trace.h:47 suspicious rcu_dereference_check() usage!
other info that might help us debug this:
RCU used illegally from idle CPU!
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