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migration: Dump ramblock and offset too when non-same-page detected 

In ram_load_postcopy() we'll try to detect non-same-page case and dump error.
This error is very helpful for debugging.  Adding ramblock & offset into the
error log too.

Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20220301083925.33483-6-peterx@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Fix up long line
This commit is contained in:
Peter Xu 2022-03-01 16:39:05 +08:00 committed by Dr. David Alan Gilbert
parent 77dadc3f83
commit cfc7dc8abf
1 changed files with 6 additions and 2 deletions
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8
migration/ram.c
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@ -3707,8 +3707,12 @@ static int ram_load_postcopy(QEMUFile *f)
} else if (tmp_page->host_addr !=
host_page_from_ram_block_offset(block, addr)) {
/* not the 1st TP within the HP */
error_report("Non-same host page %p/%p", tmp_page->host_addr,
host_page_from_ram_block_offset(block, addr));
error_report("Non-same host page detected. "
"Target host page %p, received host page %p "
"(rb %s offset 0x"RAM_ADDR_FMT" target_pages %d)",
tmp_page->host_addr,
host_page_from_ram_block_offset(block, addr),
block->idstr, addr, tmp_page->target_pages);
ret = -EINVAL;
break;
}