[Qemu-devel] [Bug 1123975] Re: QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

2013-02-18 Thread Michael Tokarev
Ok, so this is migration from qemu-kvm 1.1 to qemu 1.3. This officially does not work because the two uses different memory layout. There is a way to make this work from old qemu-kvm to new qemu, by patching new qemu, but this introduces incompatibilities in other areas. Hopefully there will be

[Qemu-devel] [Bug 1123975] Re: QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

2013-02-18 Thread Michael Tokarev
** Changed in: qemu Status: New => Confirmed -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1123975 Title: QEmu 1.3+ cannot restore a 1.1- live snapshot made in qemu-kvm Status in QEMU: Co

[Qemu-devel] [Bug 1123975] Re: QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

2013-02-16 Thread Francois Gouget
> And one more thing -- from what to what are you trying to migrate? I believe kvm is being used in both cases, though the command is different with QEmu 1.3.90. I have redone tests where I kept libvirt set to 1.0.2 and only switched between QEmu 1.1.2 and 1.3.90 to minimize the changes. So here t

[Qemu-devel] [Bug 1123975] Re: QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

2013-02-13 Thread Michael Tokarev
And one more thing -- from what to what are you trying to migrate? I see you have qemu-kvm installed too, -- were you using it previously? Note that qemu-kvm 1.1 had the same video ram size = 16Mb as current qemu have. But my cross-version migration comment stays and in this case it becomes even

[Qemu-devel] [Bug 1123975] Re: QEmu 1.3.90 cannot restore a 1.1.2 live snapshot

2013-02-13 Thread Michael Tokarev
This sounds pretty much like a prob with video ram size. In 1.1.x, we had video ram of 8Mb, in 1.3 it is 16Mb... should this be a problem, to come from smaller to larger size? Besides that, debian uses almost unmodified qemu, so the same prob should exist for upstream qemu too. But at any rate,