X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fzfeature.c;h=c09b32d177308f952f4bcb5919e98d05d6243c2c;hb=b4f7f105275d996fbcb6abd65760307d2153a89b;hp=24ff18fc3691d1aa5208ba60f1a1850a4dff8805;hpb=b9b24bb4ca45f2d903efadba44d10dfd182f62ac;p=zfs.git

diff --git a/module/zfs/zfeature.c b/module/zfs/zfeature.c
index 24ff18f..c09b32d 100644
--- a/module/zfs/zfeature.c
+++ b/module/zfs/zfeature.c
@@ -229,7 +229,12 @@ feature_get_refcount(objset_t *os, uint64_t read_obj, uint64_t write_obj,
 	uint64_t refcount;
 	uint64_t zapobj = feature->fi_can_readonly ? write_obj : read_obj;
 
-	ASSERT(0 != zapobj);
+	/*
+	 * If the pool is currently being created, the feature objects may not
+	 * have been allocated yet.  Act as though all features are disabled.
+	 */
+	if (zapobj == 0)
+		return (ENOTSUP);
 
 	err = zap_lookup(os, zapobj, feature->fi_guid, sizeof (uint64_t), 1,
 	    &refcount);