On Sun, 11 Jun 2017 17:38:42 +0800 David Gibson <da...@gibson.dropbear.id.au> wrote:
> On Fri, Jun 09, 2017 at 05:09:13PM +0200, Greg Kurz wrote:
> > On Fri, 9 Jun 2017 20:28:32 +1000
> > David Gibson <da...@gibson.dropbear.id.au> wrote:
> >
> > > On Fri, Jun 09, 2017 at 11:36:31AM +0200, Greg Kurz wrote:
> > > > On Fri, 9 Jun 2017 12:28:13 +1000
> > > > David Gibson <da...@gibson.dropbear.id.au> wrote:
> > > >
> > > > > On Thu, Jun 08, 2017 at 03:42:32PM +0200, Greg Kurz wrote:
> > > > > > I've provided answers for all comments from the v3 review that I
> > > > > > deliberately
> > > > > > don't address in v4.
> > > > >
> > > > > I've merged patches 1-4. 5 & 6 I'm still reviewing.
> > > > >
> > > >
> > > > Cool. FYI, I forgot to mention that I only tested with KVM.
> > > >
> > > > I'm now trying with TCG and I hit various guest crash on
> > > > the destination (using your ppc-for-2.10 branch WITHOUT
> > > > my patches):
> > >
> > > Drat. What's your reproducer for this crash?
> > >
> >
> > 1) start guest
> >
> > qemu-system-ppc64 \
> > -nodefaults -nographic -snapshot -no-shutdown -serial mon:stdio \
> > -device virtio-net,netdev=netdev0,id=net0 \
> > -netdev bridge,id=netdev0,br=virbr0,helper=/usr/libexec/qemu-bridge-helper
> > \
> > -device virtio-blk,drive=drive0,id=blk0 \
> > -drive file=/home/greg/images/sle12-sp1-ppc64le.qcow2,id=drive0,if=none \
> > -machine type=pseries,accel=tcg -cpu POWER8
> >
> > 2) migrate
> >
> > 3) destination crashes (immediately or after very short delay) or
> > hangs
>
> Ok. I'll bisect it when I can, but you might well get to it first.
>
>
Heh, maybe you didn't see in my mail but I did bisect:
f0b0685d6694a28c66018f438e822596243b1250 is the first bad commit
commit f0b0685d6694a28c66018f438e822596243b1250
Author: Nikunj A Dadhania <nik...@linux.vnet.ibm.com>
Date: Thu Apr 27 10:48:23 2017 +0530
tcg: enable MTTCG by default for PPC64 on x86
pgpiOnKeVATS_.pgp
Description: OpenPGP digital signature
