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[Qemu-devel] [RFC 2/6] migration: Report values for comparisons


From: Dr. David Alan Gilbert (git)
Subject: [Qemu-devel] [RFC 2/6] migration: Report values for comparisons
Date: Wed, 24 Aug 2016 14:42:29 +0100

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

Report the values when a comparison fails; together with
the previous patch that prints the device and field names
this should give a good idea of why loading the migration failed.

Signed-off-by: Dr. David Alan Gilbert <address@hidden>
---
 migration/vmstate.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/migration/vmstate.c b/migration/vmstate.c
index 1d637b2..ec7fafc 100644
--- a/migration/vmstate.c
+++ b/migration/vmstate.c
@@ -557,6 +557,7 @@ static int get_int32_equal(QEMUFile *f, void *pv, size_t 
size)
     if (*v == v2) {
         return 0;
     }
+    error_report("%" PRId32 " != %" PRId32, *v, v2);
     return -EINVAL;
 }
 
@@ -580,6 +581,9 @@ static int get_int32_le(QEMUFile *f, void *pv, size_t size)
         *cur = loaded;
         return 0;
     }
+    error_report("Invalid value %" PRId32
+                 " expecting postiive value <= %" PRId32,
+                 loaded, *cur);
     return -EINVAL;
 }
 
@@ -685,6 +689,7 @@ static int get_uint32_equal(QEMUFile *f, void *pv, size_t 
size)
     if (*v == v2) {
         return 0;
     }
+    error_report("%" PRIu32 " != %" PRIu32, *v, v2);
     return -EINVAL;
 }
 
@@ -727,6 +732,7 @@ static int get_uint64_equal(QEMUFile *f, void *pv, size_t 
size)
     if (*v == v2) {
         return 0;
     }
+    error_report("%" PRIu64 " != %" PRIu64, *v, v2);
     return -EINVAL;
 }
 
@@ -748,6 +754,7 @@ static int get_uint8_equal(QEMUFile *f, void *pv, size_t 
size)
     if (*v == v2) {
         return 0;
     }
+    error_report("%u != %u", *v, v2);
     return -EINVAL;
 }
 
@@ -769,6 +776,7 @@ static int get_uint16_equal(QEMUFile *f, void *pv, size_t 
size)
     if (*v == v2) {
         return 0;
     }
+    error_report("%u != %u", *v, v2);
     return -EINVAL;
 }
 
-- 
2.7.4




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