> @@ -1508,7 +1509,15 @@ exi_cache_trim(struct exportinfo *exi)
>* used for NFSAUTH_CACHE_TRIM seconds.
>*/
> for (c = avl_first(tree); c != NULL; c = AVL_NEXT(tree, c)) {
> - rw_enter(>authc_lock, RW_WRITER);
> +
Hi, Matt,
I believe I did reproduce the problem. The difficulty was really with creating
an L1 hole. Which I managed with a zfs recv of an empty L1 range from one zvol
to another. The target zvol had L1 hole in place of the L1 range filled with L0
holes in the source zvol.
The issue that I
> @@ -1508,7 +1509,15 @@ exi_cache_trim(struct exportinfo *exi)
>* used for NFSAUTH_CACHE_TRIM seconds.
>*/
> for (c = avl_first(tree); c != NULL; c = AVL_NEXT(tree, c)) {
> - rw_enter(>authc_lock, RW_WRITER);
> +
So, I am thinking to try modifying dbuf_read_impl() to fill the arc buf with
appropriate level holes instead of doing bzero() when reading metadata-level
holes whose birth epoch is greater than zero (or greater than the than the
hole_birth feature txg perhaps).
Boris.
