Re: [Xen-devel] [qemu-upstream-unstable bisection] complete test-amd64-i386-freebsd10-i386

[Paul Durrant <Paul.Durrant@xxxxxxxxxx>]

> -----Original Message-----
> From: Ian Jackson [mailto:Ian.Jackson@xxxxxxxxxxxxx]
> Sent: 24 February 2015 18:00
> To: Paul Durrant
> Cc: Stefano Stabellini; xen-devel@xxxxxxxxxxxxxxxxxxx; Ian Campbell
> Subject: RE: [qemu-upstream-unstable bisection] complete test-amd64-i386-
> freebsd10-i386
> 
> Paul Durrant writes ("RE: [qemu-upstream-unstable bisection] complete
> test-amd64-i386-freebsd10-i386"):
> > I thought this was fixed. I posted the fix over a week ago and it's applied:
> 
> Looking at the most recent tests it appears that there is a
> combination of heisenbugs:
> 
> Many recent flights (eg 35087) have:
> 
>  test-amd64-i386-pair 17 guest-migrate/src_host/dst_host fail pass in 34247
> 
> And 34247 has other problems with migration.
> 
> Looking at 35087/test-amd64-i386-pair/17.ts-guest-migrate.log I see:
> 
>  Parsing config from <saved>
>  xc: progress: Reloading memory pages: 7168/131072    5%
>  xc: progress: Reloading memory pages: 13312/131072   10%
>  xc: progress: Reloading memory pages: 20480/131072   15%
>  xc: progress: Reloading memory pages: 26624/131072   20%
>  xc: progress: Reloading memory pages: 32768/131072   25%
>  2015-02-23 09:37:11 Z command timed out [400]: timeout 430 ssh -o
> StrictHostKeyChecking=no -o BatchMode=yes -o ConnectTimeout=100 -o
> ServerAliveInterval=100 -o PasswordAuthentication=no -o
> ChallengeResponseAuthentication=no -o
> UserKnownHostsFile=tmp/t.known_hosts_35087.test-amd64-i386-pair
> root@xxxxxxxxxxxxx xl migrate debian.guest.osstest itch-mite
>  status (timed out) at Osstest/TestSupport.pm line 397.
> 
> The same in 34696.

It appears that 'test-amd64-i386-freebsd10-i386 qemu-upstream-unstable' passed 
in 34696, using current Xen master, and that seems to indicate my fix was good. 
 The host then changed from grain-weevil to leaf-beetle and it has failed twice 
on the xen-boot test. So, there appears to be no justification to revert my 
QEMU patch.

  Paul

> 
> It may be that this will eventually pass.  It would be nice to know
> why this sometimes fails!
> 
> Ian.

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