Index: sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
===================================================================
--- sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c	(wersja 248767)
+++ sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c	(kopia robocza)
@@ -1837,7 +1837,18 @@
 	    &xattr_obj, sizeof (xattr_obj));
 	if (error == 0 && xattr_obj) {
 		error = zfs_zget(zfsvfs, xattr_obj, &xzp);
-		ASSERT3U(error, ==, 0);
+		if (error != 0) {
+			printf("%s: zfs_zget(%s, %ju) returned %d\n",
+			    __func__, zfsvfs->z_vfs->mnt_stat.f_mntfromname,
+			    (uintmax_t)xattr_obj, error);
+			zfs_dirent_unlock(dl);
+			VN_RELE(vp);
+			if (realnmp)
+				pn_free(realnmp);
+			dmu_tx_abort(tx);
+			ZFS_EXIT(zfsvfs);
+			return (error);
+		}
 		dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE);
 		dmu_tx_hold_sa(tx, xzp->z_sa_hdl, B_FALSE);
 	}