Re: [Xen-devel] [qemu-mainline test] 59908: regressions - FAIL

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Tue, 28 Jul 2015, Anthony PERARD wrote:
> On Sat, Jul 25, 2015 at 05:34:34PM +0100, Ian Campbell wrote:
> > On Sat, 2015-07-25 at 16:15 +0000, osstest service owner wrote:
> > > flight 59908 qemu-mainline real [real]
> > > http://secure-web.cisco.com/1u4kwl1o3Dc6FDtVhFHrYLmyppwmEL8O6TSGGkDPdNzjeTSjZl_GhmvpBKlKsBPNbIlSfLqlqdopz-VgXgkCmm0eXivzV7hDeVfWv9mkXQPnQ3spzegDYYVfh9iHBe-wMTmd3XUQxuatfoS10LGCgDxQSm8sKxRqO4rlyNLAnRT8/http%3A%2F%2Flogs.test-lab.xenproject.org%2Fosstest%2Flogs%2F59908%2F
> > > 
> > > Regressions :-(
> > > 
> > > Tests which did not succeed and are blocking,
> > > including tests which could not be run:
> > >  test-amd64-i386-freebsd10-i386 12 guest-saverestore       fail REGR. vs. 
> > > 59059
> > >  test-amd64-i386-xl-qemuu-ovmf-amd64 11 guest-saverestore  fail REGR. vs. 
> > > 59059
> > >  test-amd64-i386-xl-qemuu-debianhvm-amd64 11 guest-saverestore fail REGR. 
> > > vs. 59059
> > >  test-amd64-i386-xl-qemuu-debianhvm-amd64-xsm 11 guest-saverestore fail 
> > > REGR. vs. 59059
> > >  test-amd64-i386-xl-qemuu-winxpsp3-vcpus1 11 guest-saverestore fail REGR. 
> > > vs. 59059
> > >  test-amd64-amd64-xl-qemuu-debianhvm-amd64 11 guest-saverestore fail 
> > > REGR. vs. 59059
> > >  test-amd64-amd64-xl-qemuu-ovmf-amd64 11 guest-saverestore fail REGR. vs. 
> > > 59059
> > >  test-amd64-amd64-xl-qemuu-winxpsp3 11 guest-saverestore   fail REGR. vs. 
> > > 59059
> > >  test-amd64-i386-freebsd10-amd64 12 guest-saverestore      fail REGR. vs. 
> > > 59059
> > >  test-amd64-i386-xl-qemuu-winxpsp3 11 guest-saverestore    fail REGR. vs. 
> > > 59059
> > >  test-amd64-amd64-xl-qemuu-debianhvm-amd64-xsm 11 guest-saverestore fail 
> > > REGR. vs. 59059
> > >  test-amd64-amd64-xl-qemuu-win7-amd64 11 guest-saverestore fail REGR. vs. 
> > > 59059
> > >  test-amd64-i386-xl-qemuu-win7-amd64 11 guest-saverestore  fail REGR. vs. 
> > > 59059
> > 
> > http://logs.test-lab.xenproject.org/osstest/results/bisect/qemu-mainline/test-amd64-amd64-xl-qemuu-debianhvm-amd64.guest-saverestore.html
> > 
> > was almost complete before the bisector decided to go off on test-amd64
> > -i386-freebsd10-i386.guest-saverestore instead for some reason.
> > 
> > All it missed was the final confirmation of the last pass, but from the
> > logs it was just about to blame:
> > 
> > commit df4b1024526cae3479da3492d6371fd4a7324a03
> > Author: Juan Quintela <quintela@xxxxxxxxxx>
> > Date:   Wed Oct 8 10:58:10 2014 +0200
> > 
> >     migration: create new section to store global state
> >     
> >     This includes a new section that for now just stores the current qemu 
> > state.
> >     
> >     Right now, there are only one way to control what is the state of the
> >     target after migration.
> >     
> >     - If you run the target qemu with -S, it would start stopped.
> >     - If you run the target qemu without -S, it would run just after 
> > migration finishes.
> >     
> >     The problem here is what happens if we start the target without -S and
> >     there happens one error during migration that puts current state as
> >     -EIO.  Migration would ends (notice that the error happend doing block
> >     IO, network IO, i.e. nothing related with migration), and when
> >     migration finish, we would just "continue" running on destination,
> >     probably hanging the guest/corruption data, whatever.
> >     
> >     Signed-off-by: Juan Quintela <quintela@xxxxxxxxxx>
> >     Reviewed-by: Dr. David Alan Gilbert <dgilbert@xxxxxxxxxx>
> > 
> > Perhaps we need to prod some new thing during the migration now? (Or
> > fix this non-backwards compat change maybe)
> 
> I've look at it, and I'm going to send fixes for this changes and another
> changes that also breaks migration:
> commit 61964c23e5ddd5a33f15699e45ce126f879e3e33
> migration: Add configuration section
 
Thanks! I'll give them a look.

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