On 18/11/2016 13:53, Greg Kurz wrote: > Hi Laurent,
Hi Greg, > On Thu, 17 Nov 2016 21:22:33 +0100 > Laurent Vivier <lviv...@redhat.com> wrote: > >> On 16/11/2016 15:17, Greg Kurz wrote: >>> On Wed, 16 Nov 2016 14:17:47 +0100 >>> Thomas Huth <th...@redhat.com> wrote: >>> >>>> On 16.11.2016 13:37, Greg Kurz wrote: >>>>> On Wed, 16 Nov 2016 12:24:50 +0000 >>>>> "Dr. David Alan Gilbert" <dgilb...@redhat.com> wrote: >>>>> >>>>>> * Greg Kurz (gr...@kaod.org) wrote: >>>>>>> On Wed, 16 Nov 2016 09:39:31 +0100 >>>>>>> Thomas Huth <th...@redhat.com> wrote: >>>>>>> >>>>>>>> The ppc64 postcopy test does not work with KVM-PR, and it is also >>>>>>>> causing annoying warning messages when run on a x86 host. So let's >>>>>>>> use KVM here only if we know that we're running with KVM-HV (which >>>>>>>> automatically also means that we're running on a ppc64 host), and >>>>>>>> fall back to TCG otherwise. >>>>>>>> >> [..] >>> The changes to the code look ok and I prefer to spend time chasing the >>> KVM PR issue rather than arguing on a comment... >> >> For the problem itself, it seems to appear only after a >> BOOK3S_INTERRUPT_SYSCALL interrupt for an KVM_EXIT_PAPR_HCALL >> (H_PUT_TERM_CHAR). In this case, KVM has to exit to QEMU to manage the >> output. The following interrupt is always an BOOK3S_INTERRUPT_PROGRAM >> with an emulation failure. >> > > Which specific problem are you referring to ? .. > 2) "Unexpected 32 on dest_serial serial" accompanied by the following in dmesg > > [131613.428616] Couldn't emulate instruction 0x00000000 (op 0 xop 0) > [131613.503515] kvmppc_handle_exit_pr: emulation at d8 failed (00000000) This one, test running on a bare metal PowerMac G5 (F24), 4.9.0-rc5 kernel. And I have only and everytime this error. Laurent
