On 2013-05-10 19:40, Nakajima, Jun wrote: > On Fri, May 10, 2013 at 9:33 AM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote: >> On 2013-05-10 17:39, Kashyap Chamarthy wrote: >>> On Fri, May 10, 2013 at 8:54 PM, Jan Kiszka <jan.kiszka@xxxxxxxxxxx> wrote: >>>> >>>> On 2013-05-10 17:12, Jan Kiszka wrote: >>>>> On 2013-05-10 15:00, Kashyap Chamarthy wrote: >>>>>> Heya, >>>>>> >>>>>> This is on Intel Haswell. >>>>>> >>>>>> First, some version info: >>>>>> >>>>>> L0, L1 -- both of them have same versions of kernel, qemu: >>>>>> > > I tried to reproduce such a problem, and I found L2 (Linux) hangs in > SeaBIOS, after line "iPXE (http://ipxe.org) ...". It happens with or > w/o VMCS shadowing (and even without my virtual EPT patches). I didn't > realize this problem until I updated the L1 kernel to the latest (e.g. > 3.9.0) from 3.7.0. L0 uses the kvm.git, next branch. It's possible > that the L1 kernel exposed a bug with the nested virtualization, as we > saw such cases before. Hmm, no such issues here ATM although I'm on 3.9 for L1 as well. Jan -- Siemens AG, Corporate Technology, CT RTC ITP SDP-DE Corporate Competence Center Embedded Linux -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html