Re: [Qemu-devel] kvm bug in __rmap_clear_dirty during live migration

2017-02-24 Thread Herongguang (Stephen)
On 2017/2/24 23:14, Paolo Bonzini wrote: On 24/02/2017 16:10, Chris Friesen wrote: On 02/23/2017 08:23 PM, Herongguang (Stephen) wrote: On 2017/2/22 22:43, Paolo Bonzini wrote: Hopefully Gaohuai and Rongguang can help with this too. Paolo Yes, we are looking into and testing

Re: [Qemu-devel] kvm bug in __rmap_clear_dirty during live migration

2017-02-24 Thread Herongguang (Stephen)
On 2017/2/24 23:14, Paolo Bonzini wrote: On 24/02/2017 16:10, Chris Friesen wrote: On 02/23/2017 08:23 PM, Herongguang (Stephen) wrote: On 2017/2/22 22:43, Paolo Bonzini wrote: Hopefully Gaohuai and Rongguang can help with this too. Paolo Yes, we are looking into and testing

Re: [Qemu-devel] kvm bug in __rmap_clear_dirty during live migration

2017-02-24 Thread Herongguang (Stephen)
On 2017/2/24 10:23, Herongguang (Stephen) wrote: On 2017/2/22 22:43, Paolo Bonzini wrote: On 22/02/2017 14:31, Chris Friesen wrote: Can you reproduce it with kernel 4.8+? I'm suspecting commmit 4e59516a12a6 ("kvm: vmx: ensure VMCS is current while enabling PML",

Re: [Qemu-devel] kvm bug in __rmap_clear_dirty during live migration

2017-02-24 Thread Herongguang (Stephen)
On 2017/2/24 10:23, Herongguang (Stephen) wrote: On 2017/2/22 22:43, Paolo Bonzini wrote: On 22/02/2017 14:31, Chris Friesen wrote: Can you reproduce it with kernel 4.8+? I'm suspecting commmit 4e59516a12a6 ("kvm: vmx: ensure VMCS is current while enabling PML",

Re: [Qemu-devel] kvm bug in __rmap_clear_dirty during live migration

2017-02-23 Thread Herongguang (Stephen)
On 2017/2/22 22:43, Paolo Bonzini wrote: On 22/02/2017 14:31, Chris Friesen wrote: Can you reproduce it with kernel 4.8+? I'm suspecting commmit 4e59516a12a6 ("kvm: vmx: ensure VMCS is current while enabling PML", 2016-07-14) to be the fix. I can't easily try with a newer kernel, the

Re: [Qemu-devel] kvm bug in __rmap_clear_dirty during live migration

2017-02-23 Thread Herongguang (Stephen)
On 2017/2/22 22:43, Paolo Bonzini wrote: On 22/02/2017 14:31, Chris Friesen wrote: Can you reproduce it with kernel 4.8+? I'm suspecting commmit 4e59516a12a6 ("kvm: vmx: ensure VMCS is current while enabling PML", 2016-07-14) to be the fix. I can't easily try with a newer kernel, the