Re: Problem with global pages changeset and kvm

On Tue, May 08, 2018 at 07:15:06AM -0700, Dave Hansen wrote: > Thanks for the excellent bug report! > > On 05/08/2018 02:37 AM, Thadeu Lima de Souza Cascardo wrote: > > 2) The bad address is next to do_syscall_64 on the host. > > So a host address leaked into a guest oops? > > We should bring th

Re: Problem with global pages changeset and kvm

Thanks for the excellent bug report! On 05/08/2018 02:37 AM, Thadeu Lima de Souza Cascardo wrote: > 2) The bad address is next to do_syscall_64 on the host. So a host address leaked into a guest oops? We should bring the KVM folks into this and probably also need to widen the cc list quite a bit

Problem with global pages changeset and kvm

When running a 4.15 kernel on top of 4.17-rc3, I noticed a problem on the guest: [4.836637] BUG: unable to handle kernel NULL pointer dereference at [4.839290] IP: 0x8a00147e [4.840300] PGD 0 P4D 0 [4.840510] Oops: [#1] SMP PTI [4.840510] Modules