On Mon, Dec 19, 2011 at 10:45 AM, Marc Zyngier <marc.zyngier at arm.com> wrote: > On 19/12/11 15:42, Antonios Motakis wrote: >> On 12/19/2011 04:40 PM, Christoffer Dall wrote: >>> On Mon, Dec 19, 2011 at 10:37 AM, Marc Zyngier<marc.zyngier at arm.com> ?wrote: >>>> On 19/12/11 15:30, Antonios Motakis wrote: >>>>> On 12/19/2011 04:19 PM, Marc Zyngier wrote: >>>>>> On 19/12/11 14:57, Christoffer Dall wrote: >>>>>>> >>>>>>> You should simply start booting a UP guest on an SMP host, see where >>>>>>> it crashes and start tracking it down. >>>>>> For the time being, I've yet to see UP guest crashing on SMP host. On >>>>>> the model, that is... >>>>>> >>>>>> >>>>> Last time I tried to run a guest in a 2 core model, it hanged and >>>>> crashed after a while. Anyway, I will investigate. So I gather critical >>>>> sections have been dealt with and it's just a matter of ironing bugs >>>>> right now? >>>> Depends when you tested. V4 was definitely unusable on SMP. >>>> >>>> With my patches merged in Christoffer's v5 release, the basics should be >>>> covered (correct SMP setup in the boot-wrapper and KVM, MPIDR >>>> virtualization). >>>> >>>> If you find any problem (and let's face it, I'm sure you will... ;-), >>>> I'll be happy to investigate. >>>> >>> I had the guest boot process crash on a page fault on the v5 series. >>> Consistently. I just didn't have time to investigate yet. >> >> I was also running v5, however I didn't record the exact crash behavior, >> since I assumed I was having the same results as everyone. I will look >> into it now. > > If you manage to find a way to reliably reproduce it, I really want help > having it fixed ASAP. Kernel config and co much appreciated. > ok, just reproduced. Using the AEM v7 model, 2 cores, attached guest and host config. Host running on the v5 of the KVM/ARM branch, found here: https://github.com/virtualopensystems/linux-kvm-arm Guest kernel revision: f6b252b6b92671d2633008408c06d35c26e55ecf Guest file system is a Linaro min-debug cramfs. -Christoffer -------------- next part -------------- A non-text attachment was scrubbed... Name: guest-config Type: application/octet-stream Size: 46811 bytes Desc: not available Url : https://lists.cs.columbia.edu/pipermail/android-virt/attachments/20111219/67a8f2eb/guest-config-0001.obj -------------- next part -------------- A non-text attachment was scrubbed... Name: host-config Type: application/octet-stream Size: 38610 bytes Desc: not available Url : https://lists.cs.columbia.edu/pipermail/android-virt/attachments/20111219/67a8f2eb/host-config-0001.obj
