[Qemu-devel] [PATCH 0/2] Add error reporting in migration

[Dr. David Alan Gilbert (git)]

From: "Dr. David Alan Gilbert" <address@hidden>

At the moment if you use a VMSTATE_*_EQUAL macro and the value
doesn't match you just get an error about the section that failed

e.g.
  qemu-system-ppc64: error while loading state for instance 0x0 of device 'cpu'
  qemu-system-ppc64: load of migration failed: Invalid argument

with this pair you get the field and the mismatched values.
e.g.
  qemu-system-ppc64: 8000600FE1FF7AE1 != 8000600FE1FF3A21
  qemu-system-ppc64: Failed to load cpu:env.insns_flags
  qemu-system-ppc64: error while loading state for instance 0x0 of device 'cpu'
  qemu-system-ppc64: load of migration failed: Invalid argument

which is much more likely to point you at the culprit.

(Broken out from a larger vmstatification series, the only change since
then is the values are printed in hex except for the le case).

Dave

Dr. David Alan Gilbert (2):
  migration: report an error giving the failed field
  migration: Report values for comparisons

 migration/vmstate.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

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2.7.4