Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread Wanpeng Li
2017-08-10 1:07 GMT+08:00 Dmitry Vyukov : > Hello, > > syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. > This is easily reproducible and reproducer is attached at the bottom. > The report is on upstream commit > 26c5cebfdb6ca799186f1e56be7d6f2480c5012c. This requires sett

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread Wanpeng Li
2017-08-10 1:07 GMT+08:00 Dmitry Vyukov : > Hello, > > syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. > This is easily reproducible and reproducer is attached at the bottom. > The report is on upstream commit > 26c5cebfdb6ca799186f1e56be7d6f2480c5012c. This requires sett

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread Dmitry Vyukov
On Wed, Aug 9, 2017 at 10:24 PM, David Hildenbrand wrote: > On 09.08.2017 19:07, Dmitry Vyukov wrote: >> Hello, >> >> syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. >> This is easily reproducible and reproducer is attached at the bottom. >> The report is on upstream com

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread David Hildenbrand
On 09.08.2017 19:07, Dmitry Vyukov wrote: > Hello, > > syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. > This is easily reproducible and reproducer is attached at the bottom. > The report is on upstream commit > 26c5cebfdb6ca799186f1e56be7d6f2480c5012c. This requires set

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread Dmitry Vyukov
On Wed, Aug 9, 2017 at 7:09 PM, Dmitry Vyukov wrote: > -non-existent email address > > On Wed, Aug 9, 2017 at 7:07 PM, Dmitry Vyukov wrote: >> Hello, >> >> syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. >> This is easily reproducible and reproducer is attached at the b

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread Dmitry Vyukov
-non-existent email address On Wed, Aug 9, 2017 at 7:07 PM, Dmitry Vyukov wrote: > Hello, > > syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. > This is easily reproducible and reproducer is attached at the bottom. > The report is on upstream commit > 26c5cebfdb6ca799186

kvm: WARNING in kvm_arch_vcpu_ioctl_run

2017-08-09 Thread Dmitry Vyukov
Hello, syzkaller fuzzer has hit the following WARNING in kvm_arch_vcpu_ioctl_run. This is easily reproducible and reproducer is attached at the bottom. The report is on upstream commit 26c5cebfdb6ca799186f1e56be7d6f2480c5012c. This requires setting kvm-intel.unrestricted_guest=0 on the machine, wi

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2016-11-14 Thread Paolo Bonzini
On 14/11/2016 15:09, Dmitry Vyukov wrote: > > I made dump_vmcs() no-op locally. You should see the warning > regardless, but probably it is difficult to notice. Or maybe tons of > output affect timings so that the warning does not happen. I let it run for several minutes, and only got 50 splats

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2016-11-14 Thread Dmitry Vyukov
On Mon, Nov 14, 2016 at 3:03 PM, Paolo Bonzini wrote: > > > On 14/11/2016 15:00, Dmitry Vyukov wrote: >> Hello, >> >> The following program triggers WARNING in kvm_arch_vcpu_ioctl_run in >> run in parallel loop: >> https://gist.githubusercontent.com/dvyukov/08091eee6f38548ff9e6905c5e0eaaee/raw/8ca

kvm: WARNING in kvm_arch_vcpu_ioctl_run

2016-11-14 Thread Dmitry Vyukov
Hello, The following program triggers WARNING in kvm_arch_vcpu_ioctl_run in run in parallel loop: https://gist.githubusercontent.com/dvyukov/08091eee6f38548ff9e6905c5e0eaaee/raw/8cae95f2e88eeb98c4ddc06d227670c1e248222f/gistfile1.txt On commit e234832afb623fe5c7d1d5703d6619494d8d703f (Nov 13) WAR

Re: kvm: WARNING in kvm_arch_vcpu_ioctl_run

2016-11-14 Thread Paolo Bonzini
On 14/11/2016 15:00, Dmitry Vyukov wrote: > Hello, > > The following program triggers WARNING in kvm_arch_vcpu_ioctl_run in > run in parallel loop: > https://gist.githubusercontent.com/dvyukov/08091eee6f38548ff9e6905c5e0eaaee/raw/8cae95f2e88eeb98c4ddc06d227670c1e248222f/gistfile1.txt > > On com