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Description of problem:
When do migration to des host B with xbzrle=on and migrate_cache_size=0 inside src host A, the qemu-kvm inside des host B will quit.

Version-Release number of selected component (if applicable):
qemu-kvm-1.5.3-2.el7.x86_64
3.10.0-18.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1.Boot a guest on src host A, and then set xbzrle=on and migrate_cache_size=0.
2.Boot the same guest on des host B with listenning mode: -incoming tcp:0:5800
3.do migration from host A to host B.


Actual results:
(qemu) qemu: warning: error while loading state for instance 0x0 of device 'ram'
load of migration failed


Expected results:
When set migrate_cache_size=0 with xbzrle=on, qmp or qemu monitor should give a warning message: can not set migrate_cache_size=0. 
Or when xbzrle=on, can not set migrate_cache_size=0.

Additional info:
I also test xbzrle=off and migrate_cache_size=0, can do migration successfully.

*** This bug has been marked as a duplicate of bug 1017096 ***

(In reply to Orit Wasserman from comment #2)
> 
> *** This bug has been marked as a duplicate of bug 1017096 ***

Why set this bug as the duplicate of bug 1017096. This bug is filed before bug 1017096. When you have time, could you give some reason? Thx.

Best Regards,
Jun Li

(In reply to Jun Li from comment #3)
> (In reply to Orit Wasserman from comment #2)
> > 
> > *** This bug has been marked as a duplicate of bug 1017096 ***
> 
> Why set this bug as the duplicate of bug 1017096. This bug is filed before
> bug 1017096. When you have time, could you give some reason? Thx.
> 
> Best Regards,
> Jun Li

Sorry didn't notice I will do it the other way.

*** Bug 1017096 has been marked as a duplicate of this bug. ***

This request was resolved in Red Hat Enterprise Linux 7.0.

Contact your manager or support representative in case you have further questions about the request.