1 files changed, 7 insertions, 5 deletions

diff --git a/sys/amd64/amd64/dump_machdep.c b/sys/amd64/amd64/dump_machdep.c
index 7d1e06f969eb7..3f3acc729d768 100644
--- a/sys/amd64/amd64/dump_machdep.c
+++ b/sys/amd64/amd64/dump_machdep.c
@@ -75,12 +75,14 @@ dumpsys(struct dumperinfo *di)
 		strncpy(kdh.panicstring, panicstr, sizeof kdh.panicstring);
 	kdh.parity = kerneldump_parity(&kdh);
 
+	/*
+	 * Check if we will have enough room to save the coredump.
+	 * The partition size needed is the sum of:
+	 * Memory to save + header + trailer + Room to leave untouched
+	 * at partition head. (an arbitrary amount).
+	 */
 	if (di->mediasize <  
-	    ((Maxmem * (off_t)PAGE_SIZE) +	/* Memory to save */
-	    (sizeof kdh * 2) +			/* header + trailer */
-	    (64*1024)))	{			/* Room to leave untouched */
-						/* at partition head. */
-						/* (an arbitrary amount). */
+	    Maxmem * (off_t)PAGE_SIZE + sizeof kdh * 2 + 64*1024) {
 		printf("\nDump failed. Partition too small.\n");
 		return;
 	}