On (23/04/16 20:55), Yu Zhao wrote:
> > Do you run some specific test?
>
> E.g.,
> tools/testing/selftests/kvm/max_guest_memory_test -c 112 -m 800 -s 800
> with 112 CPUs and ~770GB DRAM + 32GB zram.
Hmm ...
Something like this maybe?
The src zspage pointer is not NULL-ed after non-empty zspage is
put back to corresponding fullness list.
---
@@ -2239,8 +2241,8 @@ static unsigned long __zs_compact(struct zs_pool *pool,
if (fg == ZS_INUSE_RATIO_0) {
free_zspage(pool, class, src_zspage);
pages_freed += class->pages_per_zspage;
- src_zspage = NULL;
}
+ src_zspage = NULL;
if (get_fullness_group(class, dst_zspage) == ZS_INUSE_RATIO_100
|| spin_is_contended(&pool->lock)) {
