af-packet: print errno on mmap error

9 years ago · 88f5d7d166
parent ff05fb760b
commit 88f5d7d166
1 changed files with 2 additions and 1 deletions
--- a/src/source-af-packet.c
+++ b/src/source-af-packet.c
@ -1751,7 +1751,8 @@ static int AFPSetupRing(AFPThreadVars *ptv, char *devname)
    ring_buf = mmap(0, ring_buflen, PROT_READ|PROT_WRITE,
            mmap_flag, ptv->socket, 0);
    if (ring_buf == MAP_FAILED) {
-        SCLogError(SC_ERR_MEM_ALLOC, "Unable to mmap");
+        SCLogError(SC_ERR_MEM_ALLOC, "Unable to mmap, error %s",
+                   strerror(errno));
        goto mmap_err;
    }
 #ifdef HAVE_TPACKET_V3