On Sat, Oct 9, 2010 at 10:52 PM, Teck Choon Giam <giamteckchoon@xxxxxxxxx> wrote: > On Sat, Oct 9, 2010 at 2:37 PM, Michael Tokarev <mjt@xxxxxxxxxx> wrote: >> 09.10.2010 03:36, Teck Choon Giam wrote: >>> On Fri, Oct 8, 2010 at 2:03 PM, Michael Tokarev <mjt@xxxxxxxxxx> wrote: >> [] >>> I am not sure about userspace wise. In order to use different version >>> of qemu-kvm, besides reboot... there is only one method to run >>> different version such as upgraded version or downgraded version... is >>> to shutdown all VMs and reload the kvm related kernel modules. >> >> Someone of us two does not understand something. >> >> Why are you reloading kernel module? It comes with the kernel, >> and if you reloading it, you're rebooting the host, no? If yes, >> why? > > I am not rebooting the server or host. From my previous reply I > believe I make myself clear that in order to use upgraded or > downgraded > qemu-kvm version, without rebooting the server (host) the only method > is to shutdown all VMs and reload the kvm related modules. If just > restart all VMs will not run the upgraded/downgraded version of > qemu-kvm without reboot the server (host) or reload kvm related > modules. This is from my person test experience with vanilla kernel > 2.6.32.x. I just tested and what you said is true for qemu-kvm version upgrades/downgrades... there is no need to play with the kernel modules. Simply restart all VMs works! Weird about my test experience few weeks or months back though... ... :/ Thanks. Kindest regards, Giam Teck Choon -- 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