verify: Fix the bad pattern block offset value

We offset buf by header_size for pattern verification. Add header_size
to the mismatched buf offset to get the correct block offset value.

Signed-off-by: Igor Pylypiv <ipylypiv@google.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/verify.c b/verify.c
index f7355f302..78f333e67 100644
--- a/verify.c
+++ b/verify.c
@@ -398,7 +398,8 @@ static int verify_io_u_pattern(struct verify_header *hdr, struct vcont *vc)
 				(unsigned char)buf[i],
 				(unsigned char)pattern[mod],
 				bits);
-			log_err("fio: bad pattern block offset %u\n", i);
+			log_err("fio: bad pattern block offset %u\n",
+				i + header_size);
 			vc->name = "pattern";
 			log_verify_failure(hdr, vc);
 			return EILSEQ;